Doped MXenes—A new paradigm in 2D systems: Synthesis, properties and applications

Progress in Materials Science - Tập 139 - Trang 101166 - 2023
Avishek Dey1,2, Silvia Varagnolo1, Nicholas P Power3, Naresh Vangapally4, Yuval Elias4, Lois Damptey1, Bright N. Jaato5, Saianand Gopalan6, Zahra Golrokhi1, Prashant Sonar7,8, Vimalnath Selvaraj5, Doron Aurbach4, Satheesh Krishnamurthy1,9
1School of Engineering & Innovation, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
2Department of Chemistry, University College, London WC1H 0AJ, UK
3School of Life, Health & Chemical Sciences, The Open University, Walton Hall, Milton Keynes MK7 6AA, UK
4Department of Chemistry and Institute of Nanotechnology & Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan 5290002, Israel
5Department of Materials Science & Metallurgy, University of Cambridge, Cambridge CB3 0FS, UK
6Global Centre for Environmental Remediation (GCER), College of Engineering, Science and Environment, The University of Newcastle, Callaghan 2308, New South Wales, Australia
7Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology, 2 George Street, QLD 4000, Australia
8Centre for Clean Energy and Practices, School of Chemistry and Physics, Queensland University of Technology, 2 George Street, QLD 4000, Australia
9Surrey Ion Beam Centre, Advanced Technology Institute, University of Surrey, Guildford Surrey GU2 7XH, United Kingdom

Tài liệu tham khảo

Caldwell, 2019, Photonics with hexagonal boron nitride, Nat Rev Mater, 4, 552, 10.1038/s41578-019-0124-1 Akhtar M, Anderson G, Zhao R, Alruqi A, Mroczkowska JE, Sumanasekera G, et al. Recent advances in synthesis, properties, and applications of phosphorene. NPJ 2D Mater Appl 2017;1:5. https://doi.org/10.1038/s41699-017-0007-5. Manzeli, 2017, 2D transition metal dichalcogenides, Nat Rev Mater, 2, 17033, 10.1038/natrevmats.2017.33 Kalantar-zadeh, 2016, Two dimensional and layered transition metal oxides, Appl Mater Today, 5, 73, 10.1016/j.apmt.2016.09.012 Oughaddou, 2015, Silicene, a promising new 2D material, Prog Surf Sci, 90, 46, 10.1016/j.progsurf.2014.12.003 Liu, 2019, Recent progress on germanene and functionalized germanene: preparation, characterizations, applications, and challenges, Small, 15, 1805147, 10.1002/smll.201805147 Sahoo, 2019, A perspective on recent advances in 2D stanene nanosheets, Adv Mater Interfaces, 6, 1900752, 10.1002/admi.201900752 Naguib, 2014, 25th anniversary article: MXenes: a new family of two-dimensional materials, Adv Mater, 26, 992, 10.1002/adma.201304138 Naguib, 2012, Two-dimensional transition metal carbides, ACS Nano, 6, 1322, 10.1021/nn204153h Anasori, 2017, 2D metal carbides and nitrides (MXenes) for energy storage, Nat Rev Mater, 2, 10.1038/natrevmats.2016.98 Pang, 2019, Applications of 2D MXenes in energy conversion and storage systems, Chem Soc Rev, 48, 72, 10.1039/C8CS00324F Liu, 2020, Recent progress in MXene-based materials: potential high-performance electrocatalysts, Adv Funct Mater, 2003437 Verger, 2019, MXenes: an introduction of their synthesis, select properties, and applications, Trends Chem, 1, 656, 10.1016/j.trechm.2019.04.006 Naguib, 2011, Two-dimensional nanocrystals produced by exfoliation of Ti 3AlC 2, Adv Mater, 23, 4248, 10.1002/adma.201102306 Gogotsi, 2019, The Rise of MXenes, ACS Nano, 13, 8491, 10.1021/acsnano.9b06394 Nguyen, 2020, MXenes: Applications in electrocatalytic, photocatalytic hydrogen evolution reaction and CO2 reduction, Mol Catal, 486 Jeon, 2020, A review on MXene-based nanomaterials as adsorbents in aqueous solution, Chemosphere, 261, 10.1016/j.chemosphere.2020.127781 Bu, 2020, Porous MXenes: synthesis, structures, and applications, Nano Today, 30, 10.1016/j.nantod.2019.100803 Al-Hamadani, 2020, Applications of MXene-based membranes in water purification: a review, Chemosphere, 254, 10.1016/j.chemosphere.2020.126821 Damptey, 2022, Surface functionalized MXenes for Wastewater treatment—a comprehensive review, Global Chall, 6, 2100120, 10.1002/gch2.202100120 Mashtalir, 2014, Dye adsorption and decomposition on two-dimensional titanium carbide in aqueous media, J Mater Chem A, 2, 14334, 10.1039/C4TA02638A Zhang, 2017, Oxidation stability of colloidal two-dimensional titanium carbides (MXenes), Chem Mater, 29, 4848, 10.1021/acs.chemmater.7b00745 Wu, 2020, The assembly of MXenes from 2D to 3D, Adv Sci, 7, 1903077, 10.1002/advs.201903077 Szuplewska, 2022, The 10th anniversary of MXenes: challenges and prospects for their surface modification toward future biotechnological applications, Adv Drug Deliv Rev, 182, 10.1016/j.addr.2021.114099 Wang, 2012, Review on recent progress in nitrogen-doped graphene: synthesis, characterization, and its potential applications, ACS Catal, 2, 781, 10.1021/cs200652y Dey A, Chroneos A, Braithwaite NStJ, Gandhiraman RP, Krishnamurthy S. Plasma engineering of graphene. Appl Phys Rev 2016;3:021301. https://doi.org/10.1063/1.4947188. Wang, 2014, Heteroatom-doped graphene materials: syntheses, properties and applications, Chem Soc Rev, 43, 7067, 10.1039/C4CS00141A Wang, 2018, Catalysis with two-dimensional materials confining single atoms: concept, design, and applications, Chem Rev Fu, 2019, Rational design of flexible two-dimensional MXenes with multiple functionalities, Chem Rev, 119, 11980, 10.1021/acs.chemrev.9b00348 Zhu, 2017, Recent advance in MXenes: a promising 2D material for catalysis, sensor and chemical adsorption, Coord Chem Rev, 352, 306, 10.1016/j.ccr.2017.09.012 Gao, 2019, Structural design and electronic modulation of transition-metal-carbide electrocatalysts toward efficient hydrogen evolution, Adv Mater, 31, 1802880, 10.1002/adma.201802880 Peng, 2019, Surface and heterointerface engineering of 2D MXenes and their nanocomposites: insights into electro- and photocatalysis, Chem, 5, 18, 10.1016/j.chempr.2018.08.037 Wang, 2020, Recent advances in structural engineering of MXene electrocatalysts, J Mater Chem A Mater, 8, 10604, 10.1039/D0TA03271A Gao, 2021, Hetero-MXenes: theory, synthesis, and emerging applications, Adv Mater, 2004129, 1 Kim, 2017, Thermoelectric properties of two-dimensional molybdenum-based MXenes, Chem Mater, 29, 6472, 10.1021/acs.chemmater.7b02056 Anasori, 2015, Two-dimensional, ordered, double transition metals carbides (MXenes), ACS Nano, 9, 9507, 10.1021/acsnano.5b03591 Qu, 2018, Phosphorized MXene-phase molybdenum carbide as an earth-abundant hydrogen evolution electrocatalyst, ACS Appl Energy Mater, 1, 7206, 10.1021/acsaem.8b01642 Khazaei, 2013, Novel electronic and magnetic properties of two-dimensional transition metal carbides and nitrides, Adv Funct Mater, 23, 2185, 10.1002/adfm.201202502 Baragau, 2020, Continuous hydrothermal flow synthesis of blue-luminescent, excitation-independent nitrogen-doped carbon quantum dots as nanosensors, J Mater Chem A Mater, 8, 3270, 10.1039/C9TA11781D Chen, 2010, Nitrogen doped carbon nanotubes and their impact on the oxygen reduction reaction in fuel cells, Carbon N Y, 48, 3057, 10.1016/j.carbon.2010.04.038 Qasim, 2019, Nitrogen-doped carbon nanosheets decorated with Mn2O3 nanoparticles for excellent oxygen reduction reaction, Front Chem, 7, 741, 10.3389/fchem.2019.00741 Zou, 2014, Nitrogen-doped and crumpled graphene sheets with improved supercapacitance, J Mater Chem A Mater, 2, 19495, 10.1039/C4TA04076G Li, 2020, Heteroatom doping: an effective way to boost sodium ion storage, Adv Energy Mater, 10, 2000927, 10.1002/aenm.202000927 Le, 2019, Synergistic effects of nitrogen doping on MXene for enhancement of hydrogen evolution reaction, ACS Sustain Chem Eng, 7, 16879, 10.1021/acssuschemeng.9b04470 Cai L, Pan F, Zhu X, Dong Y, Shi Y, Xiang Z, et al. Etching engineering and electrostatic self-assembly of N-doped MXene/hollow Co-ZIF hybrids for high-performance microwave absorbers. Chem Eng J 2022;434. https://doi.org/10.1016/j.cej.2021.133865. Lu, 2020, Nitrogen-doped Ti3C2 MXene: mechanism investigation and electrochemical analysis, Adv Funct Mater, 30, 1, 10.1002/adfm.202000852 Tang, 2017, Synthesis of nitrogen-doped two-dimensional Ti 3 C 2 with enhanced electrochemical performance, J Electrochem Soc, 164, A923, 10.1149/2.0041706jes Wen, 2017, Nitrogen-doped Ti3C2Tx MXene electrodes for high-performance supercapacitors, Nano Energy, 38, 368, 10.1016/j.nanoen.2017.06.009 Jiang, 2022, One-pot synthesis of ZnO quantum dots/N-doped Ti3C2 MXene: tunable nitrogen-doping properties and efficient electrochemiluminescence sensing, Chem Eng J, 430, 10.1016/j.cej.2021.132771 Bao, 2018, Facile synthesis of crumpled nitrogen-doped MXene nanosheets as a new sulfur host for lithium-sulfur batteries, Adv Energy Mater, 8 Liao, 2022, Wrinkled and flexible N-doped MXene additive for improving the mechanical and electrochemical properties of the nickel-rich LiNi0.8Co0.1Mn0.1O2 cathode, Electrochim Acta, 410 Amiri, 2020, Porous nitrogen-doped MXene-based electrodes for capacitive deionization, Energy Storage Mater, 25, 731, 10.1016/j.ensm.2019.09.013 Yang, 2022, Synthesis of nitrogen-sulfur co-doped Ti3C2Tx MXene with enhanced electrochemical properties, Mater Reports: Energy, 2 Yu, 2019, Versatile N-doped MXene ink for printed electrochemical energy storage application, Adv Energy Mater, 9, 1901839, 10.1002/aenm.201901839 Chen, 2021, Tunable nitrogen-doped delaminated 2D MXene obtained by NH3/Ar plasma treatment as highly efficient hydrogen and oxygen evolution reaction electrocatalyst, Chem Eng J, 420, 10.1016/j.cej.2021.129832 Alli, 2022, In-situ continuous hydrothermal synthesis of TiO2 nanoparticles on conductive N-doped MXene nanosheets for binder-free Li-ion battery anodes, Chem Eng J, 430, 10.1016/j.cej.2021.132976 Han, 2021, Efficient tuning the electronic structure of N-doped Ti-based MXene to enhance hydrogen evolution reaction, J Colloid Interface Sci, 582, 1099, 10.1016/j.jcis.2020.09.001 Bao, 2019, Boosting performance of Na-S batteries using sulfur-doped Ti3C2Tx MXene nanosheets with a strong affinity to sodium polysulfides, ACS Nano, 13, 11500, 10.1021/acsnano.9b04977 An, 2021, Rational design of sulfur-doped three-dimensional Ti 3 C 2 T x MXene/ZnS heterostructure as multifunctional protective layer for dendrite-free zinc-ion batteries, ACS Nano, 15, 15259, 10.1021/acsnano.1c05934 Shuvo, 2020, Sulfur-doped titanium carbide MXenes for room-temperature gas sensing, ACS Sens, 5, 2915, 10.1021/acssensors.0c01287 Li, 2018, Improved sodium-ion storage performance of Ti3C2TX MXenes by sulfur doping, J Mater Chem A Mater, 6, 1234, 10.1039/C7TA08261D Myagmarsereejid, 2022, Sulfur-functionalized titanium carbide Ti3C2Tx(MXene) nanosheets modified light absorbers for ambient fabrication of Sb2S3 solar cells, ACS Appl Nano Mater, 5, 12107, 10.1021/acsanm.2c01520 Wen, 2021, A temperature-dependent phosphorus doping on Ti3C2Tx MXene for enhanced supercapacitance, J Colloid Interface Sci, 604, 239, 10.1016/j.jcis.2021.06.020 Gupta, 2022, Microwave-assisted rapid synthesis of titanium phosphate free phosphorus doped Ti3C2 MXene with boosted pseudocapacitance, J Mater Chem A Mater, 10.1039/D2TA04061A Bai, 2022, Microwave-assisted synthesis of nitrogen, phosphorus-doped Ti3C2 MXene quantum dots for colorimetric/fluorometric dual-modal nitrite assay with a portable smartphone platform, Sens Actuat B Chem, 357, 10.1016/j.snb.2022.131410 Xia, 2022, N and P co-doped MXenes nanoribbons for electrodeposition-free stripping analysis of Cu(II) and Hg(II), J Hazard Mater, 425, 10.1016/j.jhazmat.2021.127974 Chen, 2022, Nitrogen and sulfur co-doping strategy to trigger the peroxidase-like and electrochemical activity of Ti3C2 nanosheets for sensitive uric acid detection, Anal Chim Acta, 1197, 10.1016/j.aca.2022.339520 Zhang, 2021, Nitrogen and sulfur co-doped vanadium carbide MXene for highly reversible lithium-ion storage, J Colloid Interface Sci, 587, 489, 10.1016/j.jcis.2020.12.044 Lin, 2022, Atomic bridging modulation of Ir–N, S co-doped MXene for accelerating hydrogen evolution, J Mater Chem A Mater, 10, 9878, 10.1039/D2TA00550F Li, 2019, Element replacement approach by reaction with lewis acidic molten salts to synthesize nanolaminated MAX phases and MXenes, J Am Chem Soc, 141, 4730, 10.1021/jacs.9b00574 Li Y, Shao H, Lin Z, Lu J, Liu L, Duployer B, et al. A general Lewis acidic etching route for preparing MXenes with enhanced electrochemical performance in non-aqueous electrolyte. Nat Mater 2020 19:8 2020;19:894–9. https://doi.org/10.1038/s41563-020-0657-0. Kamysbayev, 1979, Covalent surface modifications and superconductivity of two-dimensional metal carbide MXenes, Science, 2020, 979 Sarfraz, 2022, <scp>HF</scp> free greener <scp>Cl</scp> -terminated <scp>MXene</scp> as novel electrocatalyst for overall water splitting in alkaline media, Int J Energy Res, 46, 10942, 10.1002/er.7895 Zhu, 2023, Pseudocapacitance of Cl-terminated MXene nanosheets for efficient chloride-ion hybrid capacitors, Energy Fuel, 37, 5607, 10.1021/acs.energyfuels.3c00248 Gong, 2022, Iodine-functionalized titanium carbide MXene with ultra-stable pseudocapacitor performance, J Colloid Interface Sci, 615, 643, 10.1016/j.jcis.2022.02.013 Yu, 2022, Immobilization and kinetic acceleration of lithium polysulfides by iodine-doped mxene nanosheets in lithium-sulfur batteries, J Phys Chem C, 126, 10986, 10.1021/acs.jpcc.2c02689 Persson, 2020, How much oxygen can a MXene surface take before it breaks?, Adv Funct Mater, 30, 1909005, 10.1002/adfm.201909005 Tian, 2022, In situ oxygen doped Ti3C2T MXene flexible film as supercapacitor electrode, Chem Eng J, 446, 10.1016/j.cej.2022.137451 Zha, 2015, Role of the surface effect on the structural, electronic and mechanical properties of the carbide MXenes, EPL (Europhysics Letters), 111, 26007, 10.1209/0295-5075/111/26007 Jiang, 2019, Oxygen-functionalized ultrathin Ti 3 C 2 T x MXene for enhanced electrocatalytic hydrogen evolution, ChemSusChem, 12, 1368, 10.1002/cssc.201803032 Khan, 2017, Strain engineering of electronic structures and photocatalytic responses of MXenes functionalized by oxygen, PCCP, 19, 14738, 10.1039/C7CP02513K Tan, 2019, Large out-of-plane piezoelectricity of oxygen functionalized MXenes for ultrathin piezoelectric cantilevers and diaphragms, Nano Energy, 65, 10.1016/j.nanoen.2019.104058 Weng, 2015, Large-gap two-dimensional topological insulator in oxygen functionalized MXene, Phys Rev B, 92, 10.1103/PhysRevB.92.075436 Junkaew, 2018, Enhancement of the selectivity of MXenes (M 2 C, M = Ti, V, Nb, Mo) via oxygen-functionalization: promising materials for gas-sensing and -separation, PCCP, 20, 6073, 10.1039/C7CP08622A Imani Yengejeh, 2021, Oxygen-terminated M4X3 MXenes with superior mechanical strength, Mech Mater, 160, 10.1016/j.mechmat.2021.103957 Mishra, 2017, Atomistic origin of phase stability in oxygen-functionalized MXene: a comparative study, J Phys Chem C, 121, 18947, 10.1021/acs.jpcc.7b06162 Hou, 2020, Modulating oxygen coverage of Ti3C2Tx MXenes to boost catalytic activity for HCOOH dehydrogenation, Nat Commun, 11, 4251, 10.1038/s41467-020-18091-7 Hart, 2022, Termination-property coupling via reversible oxygen functionalization of MXenes, ACS Nanoscience Au, 2, 433, 10.1021/acsnanoscienceau.2c00024 Peng, 2020, Spontaneous atomic ruthenium doping in Mo2CTX MXene defects enhances electrocatalytic activity for the nitrogen reduction reaction, Adv Energy Mater, 10, 1 Peng, 2022, A general strategy for engineering single-metal sites on 3D porous N, P Co-doped Ti 3 C 2 T X MXene, ACS Nano, 16, 4116, 10.1021/acsnano.1c09841 Alnoor, 2021, Exploring MXenes and their MAX phase precursors by electron microscopy, Mater Today Adv, 9 Yang, 2017, Improved capacitance of nitrogen-doped delaminated two-dimensional titanium carbide by urea-assisted synthesis, Electrochim Acta, 225, 416, 10.1016/j.electacta.2016.12.173 Fan, 2020, 3D printing of porous nitrogen-doped Ti3C2 MXene Scaffolds for high-performance sodium-ion hybrid capacitors, ACS Nano, 14, 867, 10.1021/acsnano.9b08030 Li, 2018, Reactive metal-support interactions at moderate temperature in two-dimensional niobium-carbide-supported platinum catalysts, Nat Catal, 1, 349, 10.1038/s41929-018-0067-8 Zhang, 2018, Single platinum atoms immobilized on an MXene as an efficient catalyst for the hydrogen evolution reaction, Nat Catal, 1, 985, 10.1038/s41929-018-0195-1 Zhao, 2019, MXene (Ti 3 C 2) vacancy-confined single-atom catalyst for efficient functionalization of CO 2, J Am Chem Soc, 141, 4086, 10.1021/jacs.8b13579 Ramalingam, 2019, Heteroatom-mediated interactions between ruthenium single atoms and an MXene support for efficient hydrogen evolution, Adv Mater, 31, 1903841, 10.1002/adma.201903841 Bunaciu AA, Udriştioiu E gabriela, Aboul-Enein HY. X-Ray Diffraction: Instrumentation and Applications. Crit Rev Anal Chem 2015;45:289–99. https://doi.org/10.1080/10408347.2014.949616. Zhang, 2023, Applications of X-ray-based characterization in MXene research, Small Methods, 2201527, 10.1002/smtd.202201527 Yoon, 2019, Precious-metal-free electrocatalysts for activation of hydrogen evolution with nonmetallic electron donor: chemical composition controllable phosphorous doped vanadium carbide MXene, Adv Funct Mater, 29, 1903443, 10.1002/adfm.201903443 Yoon, 2018, Enhanced electrocatalytic activity by chemical nitridation of two-dimensional titanium carbide MXene for hydrogen evolution, J Mater Chem A Mater, 6, 20869, 10.1039/C8TA08197B Kuznetsov, 2019, Single site cobalt substitution in 2D molybdenum carbide (MXene) enhances catalytic activity in the hydrogen evolution reaction, J Am Chem Soc, 141, 17809, 10.1021/jacs.9b08897 Fatima, 2020, Nb-doped MXene with enhanced energy storage capacity and stability, Front Chem, 8, 168, 10.3389/fchem.2020.00168 Rafiq, 2020, Structural and morphological analysis for cerium (Ce +3) doped intercalated 2D MXene, Https://DoiOrg/101117/122574353, 11561, 8 Deng, 2020, Understanding photoelectrochemical water oxidation with X-ray absorption spectroscopy, ACS Energy Lett, 5, 975, 10.1021/acsenergylett.9b02757 Heber, 2000, Application of ultraviolet photoelectron spectroscopy in the surface characterization of polycrystalline oxide catalysts. 2. Depth variation of the reduction degree in the surface region of partially reduced V 2 O 5, J Phys Chem B, 104, 5288, 10.1021/jp994188o García-Romeral, 2021, Relating X-ray photoelectron spectroscopy data to chemical bonding in MXenes, Nanoscale Adv, 3, 2793, 10.1039/D0NA01033B Näslund, 2020, X-ray Photoelectron spectroscopy of Ti 3 AlC 2, Ti 3 C 2 T z, and TiC provides evidence for the electrostatic interaction between laminated layers in MAX-phase materials, J Phys Chem C, 124, 27732, 10.1021/acs.jpcc.0c07413 Yuen, 2021, Study of structure morphology and layer thickness of Ti3C2 MXene with small-angle neutron scattering (SANS), Compos Part C: Open Access, 5 Chava, 2021, MXene-based tailoring of carrier dynamics, defect passivation, and interfacial band alignment for efficient planar p–i–n perovskite solar Cells, ACS Appl Energy Mater, 4, 12137, 10.1021/acsaem.1c01669 Yu, 2019, MXenes with tunable work functions and their application as electron- and hole-transport materials in non-fullerene organic solar cells, J Mater Chem A Mater, 7, 11160, 10.1039/C9TA01195A Zhao, 2020, Isolated single-atom Pt sites for highly selective electrocatalytic hydrogenation of formaldehyde to methanol, J Mater Chem A Mater, 8, 8913, 10.1039/D0TA00190B Sarycheva, 2020, Raman spectroscopy analysis of the structure and surface chemistry of Ti3C2T xMXene, Chem Mater, 32, 3480, 10.1021/acs.chemmater.0c00359 Wang, 2020, Tuning 2D MXenes by surface controlling and interlayer engineering: methods, properties, and synchrotron radiation characterizations, Adv Funct Mater, 2000869, 10.1002/adfm.202000869 Gao, 2019, Highly enhanced pseudocapacitive performance of vanadium-doped MXenes in neutral electrolytes, Small, 15, 1, 10.1002/smll.201902649 Yang C, Tang Y, Tian Y, Luo Y, Faraz Ud Din M, Yin X, et al. Flexible Nitrogen-Doped 2D Titanium Carbides (MXene) Films Constructed by an Ex Situ Solvothermal Method with Extraordinary Volumetric Capacitance. Adv Energy Mater 2018;8:1802087. https://doi.org/10.1002/aenm.201802087. Tang, 2020, The effect of: in situ nitrogen doping on the oxygen evolution reaction of MXenes, Nanoscale Adv, 2, 1187, 10.1039/C9NA00706G Yan, 2020, Highly green fluorescent Nb2C MXene quantum dots for Cu2+ ion sensing and cell imaging, Chin Chem Lett, 10.1016/j.cclet.2020.05.020 Bao, 2018, Facile synthesis of crumpled nitrogen-doped MXene nanosheets as a new sulfur host for lithium-sulfur batteries, Adv Energy Mater, 8 Wang, 2020, Challenges and opportunities in utilizing MXenes of carbides and nitrides as electrocatalysts, Adv Energy Mater, 2002967 Seh, 2016, Two-Dimensional molybdenum carbide (MXene) as an efficient electrocatalyst for hydrogen evolution, ACS Energy Lett, 1, 589, 10.1021/acsenergylett.6b00247 Pan, 2016, Ultra-high electrochemical catalytic activity of MXenes, Sci Rep, 6, 1, 10.1038/srep32531 Gao, 2017, 2D MXenes: a new family of promising catalysts for the hydrogen evolution reaction, ACS Catal, 7, 494, 10.1021/acscatal.6b02754 Jia, 2017, Ultrathin N-doped Mo2C nanosheets with exposed active sites as efficient electrocatalyst for hydrogen evolution reactions, ACS Nano, 11, 12509, 10.1021/acsnano.7b06607 Ang, 2015, Hydrophilic nitrogen and sulfur Co-doped molybdenum carbide nanosheets for electrochemical hydrogen evolution, Small, 11, 6278, 10.1002/smll.201502106 Zhang C (John), Ma Y, Zhang X, Abdolhosseinzadeh S, Sheng H, Lan W, et al. Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications. Energy & Environmental Materials 2020;3:29–55. https://doi.org/10.1002/eem2.12058. Ding, 2020, Uncovering the electrochemical mechanisms for hydrogen evolution reaction of heteroatom doped M2C MXene (M = Ti, Mo), Appl Surf Sci, 500, 10.1016/j.apsusc.2019.143987 Nam, 2021, Theoretical approach toward optimum anion-doping on mxene catalysts for hydrogen evolution reaction: an ab initio thermodynamics study, ACS Appl Mater Interfaces, 13, 37035, 10.1021/acsami.1c07476 Ling, 2016, Transition metal-promoted V2CO2 (MXenes): a new and highly active catalyst for hydrogen evolution reaction, Adv Sci, 3, 1600180, 10.1002/advs.201600180 Tahini, 2022, Activating Inert MXenes for hydrogen evolution reaction via anchored metal centers, Adv Theory Simul, 5, 1, 10.1002/adts.202100383 Li, 2018, High-throughput theoretical optimization of the hydrogen evolution reaction on MXenes by transition metal modification, J Mater Chem A Mater, 6, 4271, 10.1039/C8TA00173A Gan, 2020, Theoretical study of transition-metal-modified Mo2CO2 MXene as a catalyst for the hydrogen evolution reaction, ChemSusChem, 13, 6005, 10.1002/cssc.202002163 Shen, 2020, 3d transitional-metal single atom catalysis toward hydrogen evolution reaction on MXenes supports, Int J Hydrogen Energy, 45, 14396, 10.1016/j.ijhydene.2020.03.174 Chen, 2020, Transition metal atoms implanted into MXenes (M2CO2) for enhanced electrocatalytic hydrogen evolution reaction, Appl Surf Sci, 509, 10.1016/j.apsusc.2020.145319 Jing, 2019, Single Pt atoms stabilized on Mo2TiC2O2 for hydrogen evolution: a first-principles investigation, J Chem Phys, 151, 10.1063/1.5099571 Park, 2022, Reducing the high hydrogen binding strength of vanadium carbide MXene with atomic Pt confinement for high activity toward HER, Appl Catal B, 304, 10.1016/j.apcatb.2021.120989 Jian, 2022, Platinum nanoparticle-electrodeposited Ti3C2TxMXene as a binder-free electrocatalyst for improved hydrogen evolution, ACS Appl Energy Mater, 5, 3092, 10.1021/acsaem.1c03708 Huang, 2023, Encapsulating Ni nanoparticles into interlayers of nitrogen-doped Nb 2 CT x MXene to boost hydrogen evolution reaction in acid, Small, 19, 2206098, 10.1002/smll.202206098 Liu, 2020, Single-atom Ru anchored in nitrogen-doped MXene (Ti3C2T: X) as an efficient catalyst for the hydrogen evolution reaction at all pH values, J Mater Chem A Mater, 8, 24710, 10.1039/D0TA09538A Bat-Erdene, 2021, Highly dispersed Ru nanoparticles on boron-doped Ti3C2Tx (MXene) nanosheets for synergistic enhancement of electrocatalytic hydrogen evolution, Small, 17, 1, 10.1002/smll.202102218 Du, 2019, Synergy of Nb doping and surface alloy enhanced on water-alkali electrocatalytic hydrogen generation performance in Ti-based MXene, Adv Sci, 6, 1900116, 10.1002/advs.201900116 Zou, 2023, Ruthenium <scp>single-atom</scp> modulated <scp> Ti 3 C 2 T x MXene </scp> for efficient alkaline electrocatalytic hydrogen production, EcoMat, 5 Wu, 2023, Boosting hydrogen evolution in neutral medium by accelerating water dissociation with Ru clusters loaded on Mo 2 CTx MXene, Adv Funct Mater, 33 Dey, 2021, Cu2O/CuO heterojunction catalysts through atmospheric pressure plasma induced defect passivation, Appl Surf Sci, 541, 10.1016/j.apsusc.2020.148571 Si, 2014, 133 Zhu, 2021, Strategies for engineering the MXenes toward highly active catalysts, Mater Today Nano, 13 Peng, 2019, Cu single atoms on Ti2CO2 as a highly efficient oxygen reduction catalyst in a proton exchange membrane fuel cell, J Mater Chem A Mater, 7, 26062, 10.1039/C9TA08297B Liu, 2019, Termination effects of Pt/v-Ti n+1 C n T 2 MXene surfaces for oxygen reduction reaction catalysis, ACS Appl Mater Interfaces, 11, 1638, 10.1021/acsami.8b17600 Zhang, 2020, Tuning the ORR activity of Pt-based Ti2CO2 MXenes by varying the atomic cluster size and doping with metals, Nanoscale, 12, 12497, 10.1039/D0NR00048E Cheng, 2018, Two-dimensional, ordered, double transition metal carbides (MXenes): A new family of promising catalysts for the hydrogen evolution reaction, J Phys Chem C, 122, 28113, 10.1021/acs.jpcc.8b08914 Zeng, 2021, Computational screening study of double transition metal carbonitrides M′2M{\Prime}CNO2-MXene as catalysts for hydrogen evolution reaction, NPJ Comput Mater, 7, 2, 10.1038/s41524-021-00550-4 Ma, 2022, First-principles screening of Pt doped Ti2CNL (N = O, S and Se, L = F, Cl, Br and I) as high-performance catalysts for ORR/OER, Appl Surf Sci, 596, 10.1016/j.apsusc.2022.153574 Gao, 2020, Strain effects on Co, N co-decorated graphyne catalysts for overall water splitting electrocatalysis, PCCP, 22, 2457, 10.1039/C9CP05548G Huang, 2017, Understanding of strain effects in the electrochemical reduction of CO2: using pd nanostructures as an ideal platform, Angew Chem Int Ed, 56, 3594, 10.1002/anie.201612617 Asano, 2016, Oxygen reduction reaction activity for strain-controlled Pt-based model alloy catalysts: surface strains and direct electronic effects induced by alloying elements, ACS Catal, 6, 5285, 10.1021/acscatal.6b01466 Hsu, 2018, Tuning the electronic spin state of catalysts by strain control for highly efficient water electrolysis, Small Methods, 2, 1800001, 10.1002/smtd.201800001 Ma, 2022, Strain adjustment Pt-doped Ti2CO2 as an efficient bifunctional catalyst for oxygen reduction reactions and oxygen evolution reactions by first-principles calculations, Appl Surf Sci, 590, 10.1016/j.apsusc.2022.153149 Ma, 2022, Strain engineering in the oxygen reduction reaction and oxygen evolution reaction catalyzed by Pt-doped Ti2CF2, J Mater Chem A Mater, 10, 1390, 10.1039/D1TA07349D Kan, 2020, Screening effective single-atom ORR and OER electrocatalysts from Pt decorated MXenes by first-principles calculations, J Mater Chem A Mater, 8, 17065, 10.1039/D0TA04429F Kan, 2020, Rational design of bifunctional ORR/OER catalysts based on Pt/Pd-doped Nb2CT2 MXene by first-principles calculations, J Mater Chem A Mater, 8, 3097, 10.1039/C9TA12255A Cheng, 2019, Nanostructure of Cr2CO2 MXene supported single metal atom as an efficient bifunctional electrocatalyst for overall water splitting, ACS Appl Energy Mater, 2, 6851, 10.1021/acsaem.9b01329 Shabana, 2023, Platinum nanoparticles decorated Nb2CT MXene as an efficient dual functional catalyst for hydrogen evolution and oxygen reduction reaction, Int J Hydrogen Energy, 48, 7698, 10.1016/j.ijhydene.2022.11.216 Sharma, 2023, Ti2+ and Ti4+ species enriched MXene electrocatalyst for highly efficient hydrogen evolution and oxygen evolution reaction kinetics, Appl Surf Sci, 612, 10.1016/j.apsusc.2022.155883 Fu, 2020, A Ti3C2O2 supported single atom, trifunctional catalyst for electrochemical reactions, J Mater Chem A Mater, 8, 7801, 10.1039/D0TA01047B Zhang, 2020, Highly active and durable Pt/MXene nanocatalysts for ORR in both alkaline and acidic conditions, J Electroanal Chem, 865, 10.1016/j.jelechem.2020.114142 Cui, 2018, A review of electrocatalytic reduction of dinitrogen to ammonia under ambient conditions, Adv Energy Mater, 8, 1, 10.1002/aenm.201800369 Liu D, Chen M, Du X, Ai H, Lo KH, Wang S, et al. Development of Electrocatalysts for Efficient Nitrogen Reduction Reaction under Ambient Condition. Adv Funct Mater 2020:2008983. https://doi.org/10.1002/adfm.202008983. Luo, 2019, Efficient electrocatalytic N 2 fixation with MXene under ambient conditions, Joule, 3, 279, 10.1016/j.joule.2018.09.011 Li, 2019, Fluorine-free Ti3C2T: X (T = O, OH) nanosheets (∼50-100 nm) for nitrogen fixation under ambient conditions, J Mater Chem A Mater, 7, 14462, 10.1039/C9TA03254A Zhao, 2018, Ti3C2Tx (T = F, OH) MXene nanosheets: conductive 2D catalysts for ambient electrohydrogenation of N2 to NH3, J Mater Chem A Mater, 6, 24031, 10.1039/C8TA09840A Johnson, 2020, MXene materials for the electrochemical nitrogen reduction-functionalized or not?, ACS Catal, 10, 253, 10.1021/acscatal.9b01925 Li, 2019, Theoretical screening of single transition metal atoms embedded in mxene defects as superior electrocatalyst of nitrogen reduction reaction, Small Methods, 3, 1, 10.1002/smtd.201900337 Huang, 2019, Single atom-supported MXene: how single-atomic-site catalysts tune the high activity and selectivity of electrochemical nitrogen fixation, J Mater Chem A Mater, 7, 27620, 10.1039/C9TA09776G Gao, 2019, A theoretical study of electrocatalytic ammonia synthesis on single metal atom/MXene, Cuihua Xuebao/Chinese Journal of Catalysis, 40, 152, 10.1016/S1872-2067(18)63197-3 Zheng, 2019, Electrochemical nitrogen reduction reaction performance of single-boron catalysts tuned by MXene substrates, J Phys Chem Lett, 6984, 10.1021/acs.jpclett.9b02741 Liu, 2019, Synergistic electrocatalytic nitrogen reduction enabled by confinement of nanosized Au particles onto a two-dimensional Ti3C2 substrate, ACS Appl Mater Interfaces, 11, 25758, 10.1021/acsami.9b02511 Liu, 2020, Electrocatalytic synthesis of ammonia using a 2D Ti3C2 MXene loaded with copper nanoparticles, ChemPlusChem, 124221, 166 Liu, 2020, Two-dimensional CuAg/Ti3C2catalyst for electrochemical synthesis of ammonia under ambient conditions: a combined experimental and theoretical study, Sustain Energy Fuels, 4, 5061, 10.1039/D0SE00915F Liu, 2020, A two-dimensional Ru@MXene catalyst for highly selective ambient electrocatalytic nitrogen reduction, Nanoscale, 12, 10933, 10.1039/D0NR00788A Azofra, 2016, Promising prospects for 2D d2–d4 M3C2 transition metal carbides (MXenes) in N2 capture and conversion into ammonia, Energ Environ Sci, 9, 2545, 10.1039/C6EE01800A Zhang, 2019, Interfacial engineering of SeO ligands on tellurium featuring synergistic functionalities of bond activation and chemical states buffering toward electrocatalytic conversion of nitrogen to ammonia, Adv Sci, 6, 1901627, 10.1002/advs.201901627 Shi, 2021, Vacancy and N dopants facilitated Ti3+ sites activity in 3D Ti3-xC2Ty MXene for electrochemical nitrogen fixation, Appl Catal B, 297, 10.1016/j.apcatb.2021.120482 Zhai, 2022, Termination effects of single-atom decorated v-Mo2CTx MXene for the electrochemical nitrogen reduction reaction, J Colloid Interface Sci, 605, 897, 10.1016/j.jcis.2021.07.083 Xue, 2019, Electrochemical reduction of N2 into NH3 by donor-acceptor couples of Ni and Au nanoparticles with a 67.8% faradaic efficiency, J Am Chem Soc, 141, 14976, 10.1021/jacs.9b07963 Li, 2017, Understanding of electrochemical mechanisms for CO2 capture and conversion into hydrocarbon fuels in transition-metal carbides (MXenes), ACS Nano, 11, 10825, 10.1021/acsnano.7b03738 Handoko, 2018, Establishing new scaling relations on two-dimensional MXenes for CO2 electroreduction, J Mater Chem A Mater, 6, 21885, 10.1039/C8TA06567E Handoko, 2020, Two-dimensional titanium and molybdenum carbide MXenes as electrocatalysts for CO2 reduction, IScience, 23, 10.1016/j.isci.2020.101181 Qu, 2020, Nitrogen doping and titanium vacancies synergistically promote CO2fixation in seawater, Nanoscale, 12, 17191, 10.1039/D0NR03775C Peterson, 2012, Activity descriptors for CO 2 electroreduction to methane on transition-metal catalysts, J Phys Chem Lett, 3, 251, 10.1021/jz201461p Baturina, 2014, CO2 electroreduction to hydrocarbons on carbon-supported Cu nanoparticles, ACS Catal, 4, 3682, 10.1021/cs500537y Eid, 2022, Highly exfoliated Ti3C2T: XMXene nanosheets atomically doped with Cu for efficient electrochemical CO2reduction: An experimental and theoretical study, J Mater Chem A Mater, 10, 1965, 10.1039/D1TA09471H Zhao, 2021, Selective etching quaternary MAX phase toward single atom copper immobilized MXene (Ti3C2Clx) for efficient CO2 electroreduction to methanol, ACS Nano, 15, 4927, 10.1021/acsnano.0c09755 Handoko, 2018, Tuning the basal plane functionalization of two-dimensional metal carbides (MXenes) to control hydrogen evolution activity, ACS Appl Energy Mater, 1, 173, 10.1021/acsaem.7b00054 Cheng, 2022, CO2 reduction mechanism on the Nb2CO2 MXene surface: effect of nonmetal and metal modification, Comput Mater Sci, 202, 10.1016/j.commatsci.2021.110971 Freund, 2011, CO oxidation as a prototypical reaction for heterogeneous processes, Angewandte Chemie - International Edition, 50, 10064, 10.1002/anie.201101378 Cheng, 2018, Cu3-cluster-doped monolayer Mo2CO2 (MXene) as an electron reservoir for catalyzing a CO oxidation reaction, ACS Appl Mater Interfaces, 10, 32903, 10.1021/acsami.8b12318 Cheng, 2019, Identification of high-performance single-atom MXenes catalysts for low-temperature CO oxidation, Adv Theory Simul, 2, 1900006, 10.1002/adts.201900006 Zhang, 2020, Regulation of CO oxidation with Pd additives on Nb2CO2 MXene, Int J Hydrogen Energy, 46, 8477, 10.1016/j.ijhydene.2020.11.278 Glavin, 2020, Emerging applications of elemental 2D materials, Adv Mater, 32 Kshetri T, Tran DT, Le HT, Nguyen DC, Hoa H van, Kim NH, et al. Recent advances in MXene-based nanocomposites for electrochemical energy storage applications. Prog Mater Sci 2021;117. https://doi.org/10.1016/j.pmatsci.2020.100733. Yang J, Bao W, Jaumaux P, Zhang S, Wang C, Wang G. MXene-Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors. Adv Mater Interfaces 2019;6. https://doi.org/10.1002/admi.201802004. Kumar, 2020, Heteroatom doped graphene engineering for energy storage and conversion, Mater Today, 39, 47, 10.1016/j.mattod.2020.04.010 Etacheri, 2011, Challenges in the development of advanced Li-ion batteries: a review, Energ Environ Sci, 4, 3243, 10.1039/c1ee01598b Li, 2018, 30 years of lithium-ion batteries, Adv Mater, 30 Haregewoin, 2016, Electrolyte additives for lithium ion battery electrodes: progress and perspectives, Energ Environ Sci, 9, 1955, 10.1039/C6EE00123H Li, 2017, High-voltage positive electrode materials for lithium-ion batteries, Chem Soc Rev, 46, 3006, 10.1039/C6CS00875E Bauer, 2020, Continuous hydrothermal synthesis of metal germanates (M2 GeO4; M = Co, Mn, Zn) for high-capacity negative electrodes in Li-ion batteries, Energ Technol, 8, 1900692, 10.1002/ente.201900692 Whittingham, 2004, Lithium batteries and cathode materials, Chem Rev, 104, 4271, 10.1021/cr020731c Whittingham, 1979, Electrical energy storage and intercalation chemistry, Science, 1976, 1126 Ozawa K. Lithium-ion rechargeable batteries with LiCoO2 and carbon electrodes: the LiCoO2/C system. vol. 69. 1994. Bruce, 2008, Nanomaterials for rechargeable lithium batteries, Angewandte Chemie - International Edition, 47, 2930, 10.1002/anie.200702505 Marom, 2011, A review of advanced and practical lithium battery materials, J Mater Chem, 21, 9938, 10.1039/c0jm04225k Schipper, 2017, Review—recent advances and remaining challenges for lithium ion battery cathodes, J Electrochem Soc, 164, A6220, 10.1149/2.0351701jes Kumar, 2016, Review—two-dimensional layered materials for energy storage applications, ECS J Solid State Sci Technol, 5, Q3021, 10.1149/2.0051611jss Garg, 2020, A Review on MXene for energy storage application: effect of interlayer distance, Mater Res Express, 7, 10.1088/2053-1591/ab750d Hong Ng, 2017, Recent progress in layered transition metal carbides and/or nitrides (MXenes) and their composites: synthesis and applications, J Mater Chem A Mater, 5, 3039, 10.1039/C6TA06772G Liu, 2019, Nitrogen-doped Nb2CTx MXene as anode materials for lithium ion batteries, J Alloy Compd, 793, 505, 10.1016/j.jallcom.2019.03.209 Wu, 1944, Boron-doped three-dimensional MXene host for durable lithium-metal anode RARE METALS, Rare Met, 41, 2217, 10.1007/s12598-021-01944-5 Ponrouch, 2012, In search of an optimized electrolyte for Na-ion batteries, Energ Environ Sci, 5, 8572, 10.1039/c2ee22258b Xiang, 2015, Recent advances and prospects of cathode materials for sodium-ion batteries, Adv Mater, 27, 5343, 10.1002/adma.201501527 Whittingham, 1978, Chemistry of intercalation compounds: metal guests in chalcogenide hosts, Prog Solid State Chem, 12, 41, 10.1016/0079-6786(78)90003-1 Newman, 1980, Ambient temperature cycling of an Na - TiS2 cell, J Electrochem Soc, 127, 2097, 10.1149/1.2129353 Yabuuchi, 2014, Research development on sodium-ion batteries, Chem Rev, 114, 11636, 10.1021/cr500192f Pan, 2013, Room-temperature stationary sodium-ion batteries for large-scale electric energy storage, Energ Environ Sci, 6, 2338, 10.1039/c3ee40847g Hwang, 2017, Sodium-ion batteries: present and future, Chem Soc Rev, 46, 3529, 10.1039/C6CS00776G Okamoto, 2014, Density functional theory calculations of alkali metal (Li, Na, and K) graphite intercalation compounds, J Phys Chem C, 118, 16, 10.1021/jp4063753 Nobuhara, 2013, First-principles study of alkali metal-graphite intercalation compounds, J Power Sources, 243, 585, 10.1016/j.jpowsour.2013.06.057 Stevens, 2000, High capacity anode materials for rechargeable sodium-ion batteries, J Electrochem Soc, 147, 1271, 10.1149/1.1393348 Fong, 1990, Studies of lithium intercalation into carbons using nonaqueous electrochemical cells, J Electrochem Soc, 137, 2009, 10.1149/1.2086855 Lei, 2020, Tailoring MXene-based materials for sodium-ion storage: synthesis, mechanisms, and applications, Electrochem Energy Rev, 3, 766, 10.1007/s41918-020-00079-y Hou, 2017, Carbon anode materials for advanced sodium-ion batteries, Adv Energy Mater, 7, 10.1002/aenm.201602898 Perveen, 2020, Prospects in anode materials for sodium ion batteries - a review, Renew Sustain Energy Rev, 119, 10.1016/j.rser.2019.109549 Zheng, 2019, Sodium metal anodes for room-temperature sodium-ion batteries: Applications, challenges and solutions, Energy Storage Mater, 16, 6, 10.1016/j.ensm.2018.04.014 Manthiram, 2014, Rechargeable lithium-sulfur batteries, Chem Rev, 114, 11751, 10.1021/cr500062v Liu, 2021, Electrolyte solutions design for lithium-sulfur batteries, Joule, 5, 2323, 10.1016/j.joule.2021.06.009 Manthiram, 2015, Lithium-sulfur batteries: progress and prospects, Adv Mater, 27, 1980, 10.1002/adma.201405115 Syali, 2020, Recent advances in electrolytes for room-temperature sodium-sulfur batteries: a review, Energy Storage Mater, 31, 352, 10.1016/j.ensm.2020.06.023 Chung SH, Chang CH, Manthiram A. Progress on the Critical Parameters for Lithium–Sulfur Batteries to be Practically Viable. Adv Funct Mater 2018;28. https://doi.org/10.1002/adfm.201801188. Wang, 2017, Room-temperature sodium-sulfur batteries: a comprehensive review on research progress and cell chemistry, Adv Energy Mater, 7, 10.1002/aenm.201770140 Seh, 2016, Designing high-energy lithium-sulfur batteries, Chem Soc Rev, 45, 5605, 10.1039/C5CS00410A Ma, 2015, Nanomaterials: science and applications in the lithium-sulfur battery, Nano Today, 10, 315, 10.1016/j.nantod.2015.04.011 Wen, 2008, Research on sodium sulfur battery for energy storage, Solid State Ion, 179, 1697, 10.1016/j.ssi.2008.01.070 Wei, 2016, A stable room-temperature sodium-sulfur battery, Nat Commun, 7, 1, 10.1038/ncomms11722 Song, 2020, Rational design of porous nitrogen-doped Ti3C2 MXene as a multifunctional electrocatalyst for Li–S chemistry, Nano Energy, 70, 1, 10.1016/j.nanoen.2020.104555 Wang C, Zhang L, Zhang Z, Zhao R, Zhao D, Ma R, et al. Layered materials for supercapacitors and batteries: Applications and challenges. Prog Mater Sci 2021;118. https://doi.org/10.1016/j.pmatsci.2020.100763. Fleischmann, 2020, Pseudocapacitance: from fundamental understanding to high power energy storage materials, Chem Rev, 120, 6738, 10.1021/acs.chemrev.0c00170 Wang, 2016, Electrochemical capacitors: mechanism, materials, systems, characterization and applications, Chem Soc Rev, 45, 5925, 10.1039/C5CS00580A Chakrabarty, 2021, CeO2/Ce2O3 quantum dot decorated reduced graphene oxide nanohybrid as electrode for supercapacitor, Appl Surf Sci, 536, 10.1016/j.apsusc.2020.147960 Yu, 2017, Boosting the energy density of carbon-based aqueous supercapacitors by optimizing the surface charge, Angewandte Chemie - International Edition, 56, 5454, 10.1002/anie.201701737 Wang, 2012, A review of electrode materials for electrochemical supercapacitors, Chem Soc Rev, 41, 797, 10.1039/C1CS15060J Augustyn, 2014, Pseudocapacitive oxide materials for high-rate electrochemical energy storage, Energ Environ Sci, 7, 1597, 10.1039/c3ee44164d Zhi, 2013, Nanostructured carbon-metal oxide composite electrodes for supercapacitors: a review, Nanoscale, 5, 72, 10.1039/C2NR32040A Meng, 2017, Research progress on conducting polymer based supercapacitor electrode materials, Nano Energy, 36, 268, 10.1016/j.nanoen.2017.04.040 Lukatskaya MR, Mashtalir O, Ren CE, Dall’Agnese Y, Rozier P, Taberna PL, et al. Cation Intercalation and High Volumetric Capacitance of Two-Dimensional Titanium Carbide. Science (1979) 2013;341:1502–5. https://doi.org/10.1126/science.1241488. Mashtalir, 2016, The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene), Nanoscale, 8, 9128, 10.1039/C6NR01462C Dall’Agnese Y, Lukatskaya MR, Cook KM, Taberna P-L, Gogotsi Y, Simon P. High capacitance of surface-modified 2D titanium carbide in acidic electrolyte. Electrochem Commun 2014;48:118–22. https://doi.org/10.1016/j.elecom.2014.09.002. Ghidiu, 2014, Conductive two-dimensional titanium carbide ‘clay’ with high volumetric capacitance, Nature, 516, 78, 10.1038/nature13970 Li, 2017, Flexible all-solid-state supercapacitors with high volumetric capacitances boosted by solution processable MXene and electrochemically exfoliated graphene, Adv Energy Mater, 7, 1601847, 10.1002/aenm.201601847 Boota, 2016, Pseudocapacitive electrodes produced by oxidant-free polymerization of pyrrole between the layers of 2D titanium carbide (MXene), Adv Mater, 28, 1517, 10.1002/adma.201504705 Wang, 2016, ZnO nanoparticle-decorated two-dimensional titanium carbide with enhanced supercapacitive performance, RSC Adv, 6, 88934, 10.1039/C6RA15384D Tang, 2016, Enhanced supercapacitive performance of manganese oxides doped two-dimensional titanium carbide nanocomposite in alkaline electrolyte, J Alloy Compd, 685, 194, 10.1016/j.jallcom.2016.05.221 Wang, 2016, Three-dimensional porous MXene/layered double hydroxide composite for high performance supercapacitors, J Power Sources, 327, 221, 10.1016/j.jpowsour.2016.07.062 Zhao, 2015, Flexible MXene/carbon nanotube composite paper with high volumetric capacitance, Adv Mater, 27, 339, 10.1002/adma.201404140 Zhao, 2016, Two-dimensional titanium carbide/RGO composite for high-performance supercapacitors, ACS Appl Mater Interfaces, 8, 15661, 10.1021/acsami.6b04767 Yan, 2017, Flexible MXene/graphene films for ultrafast supercapacitors with outstanding volumetric capacitance, Adv Funct Mater, 27, 1701264, 10.1002/adfm.201701264 Liu, 2022, In situ growth of three-dimensional MXene/metal–organic framework composites for high-performance supercapacitors, Angew Chem, 134 Bai, 2021, MXene-copper/cobalt hybrids via lewis acidic molten salts etching for high performance symmetric supercapacitors, Angew Chem, 133, 25522, 10.1002/ange.202112381 Zheng, 2022, Dual-ligand and hard-soft-acid-base strategies to optimize metal-organic framework nanocrystals for stable electrochemical cycling performance, Natl Sci Rev, 9, 10.1093/nsr/nwab197 Marje, 2020, Regulated micro-leaf like nickel pyrophosphate as a cathode electrode for asymmetric supercapacitor, Synth Met, 259, 10.1016/j.synthmet.2019.116224 Khan, 2017, Redox-additive-enhanced high capacitance supercapacitors based on Co 2 P 2 O 7 nanosheets, Adv Mater Interfaces, 4, 1700059, 10.1002/admi.201700059 Karaphun, 2021, Influence of calcination temperature on structural, morphological, and electrochemical properties of Zn2P2O7 nanostructure, Surf Interfaces, 23 BoopathiRaja, 2021, Effect of polypyrrole incorporated sun flower like Mn2P2O7 with lab waste tissue paper derived activated carbon for asymmetric supercapacitor applications, Surf Interfaces, 26 Agarwal, 2022, Carbon nanotube-functionalized surface-assisted growth of cobalt phosphate nanodots: a highly stable and bendable all-solid-state symmetric supercapacitor, Energy Fuel, 36, 5953, 10.1021/acs.energyfuels.2c00600 Chen, 2010, Graphene oxide−MnO 2 nanocomposites for supercapacitors, ACS Nano, 4, 2822, 10.1021/nn901311t Wang, 2016, Synthesis and control of high-performance MnO2/carbon nanotubes nanocomposites for supercapacitors, J Alloy Compd, 688, 184, 10.1016/j.jallcom.2016.07.005 Vangapally N, V. KK, Kumar A, Martha SK. Charge storage behavior of sugar derived carbon/MnO2 composite electrode material for high-performance supercapacitors. J Alloys Compd 2022;893:162232. https://doi.org/10.1016/j.jallcom.2021.162232. Gopalsamy, 2017, Fabrication of nitrogen and sulfur co-doped graphene nanoribbons with porous architecture for high-performance supercapacitors, Chem Eng J, 312, 180, 10.1016/j.cej.2016.11.130 Xiao, 2013, A simple process to prepare nitrogen-modified few-layer graphene for a supercapacitor electrode, Carbon N Y, 57, 184, 10.1016/j.carbon.2013.01.062 Parveen, 2016, Simultaneous sulfur doping and exfoliation of graphene from graphite using an electrochemical method for supercapacitor electrode materials, J Mater Chem A Mater, 4, 233, 10.1039/C5TA07963B Rotte, 2020, Microwave aided scalable synthesis of sulfur, nitrogen co-doped few-layered graphene material for high-performance supercapacitors, Electrochim Acta, 363, 10.1016/j.electacta.2020.137209 Saha, 2015, Band gap engineering of boron nitride by graphene and its application as positive electrode material in asymmetric supercapacitor device, ACS Appl Mater Interfaces, 7, 14211, 10.1021/acsami.5b03562 Wang, 2020, Carbon nanobowls filled with MoS 2 nanosheets as electrode materials for supercapacitors, ACS Appl Nano Mater, 3, 6448, 10.1021/acsanm.0c00924 Liu, 2020, NiCo-MOF nanosheets wrapping polypyrrole nanotubes for high-performance supercapacitors, Appl Surf Sci, 507, 10.1016/j.apsusc.2019.145089 Samuel, 2019, Supersonically sprayed Zn 2 SnO 4 /SnO 2 /CNT nanocomposites for high-performance supercapacitor electrodes, ACS Sustain Chem Eng, 7, 14031, 10.1021/acssuschemeng.9b02549 Das, 2016, Designing hierarchical NiO/PAni-MWCNT core–shell nanocomposites for high performance super capacitor electrodes, RSC Adv, 6, 44878, 10.1039/C6RA01777K Huang, 2014, Hydrothermal synthesis of molybdenum disulfide nanosheets as supercapacitors electrode material, Electrochim Acta, 132, 397, 10.1016/j.electacta.2014.04.007 Hu, 2013, Synthesis of porous tubular C/MoS2 nanocomposites and their application as a novel electrode material for supercapacitors with excellent cycling stability, Electrochim Acta, 100, 24, 10.1016/j.electacta.2013.03.133 Xu, 2011, What is the choice for supercapacitors: graphene or graphene oxide?, Energ Environ Sci, 4, 2826, 10.1039/c1ee01198g Chen, 2011, High performance supercapacitors based on reduced graphene oxide in aqueous and ionic liquid electrolytes, Carbon N Y, 49, 573, 10.1016/j.carbon.2010.09.060 Krishnan, 2021, Effect of electrolyte concentration on the electrochemical performance of RGO–KOH supercapacitor, Bull Mater Sci, 44, 288, 10.1007/s12034-021-02576-2 Yang, 2017, Nitrogen and sulfur Co-doped 2D titanium carbides for enhanced electrochemical performance, J Electrochem Soc, 164, A1939, 10.1149/2.1091709jes Yoon, 2018, A strategy for synthesis of carbon nitride induced chemically doped 2D MXene for high-performance supercapacitor electrodes, Adv Energy Mater, 8, 1703173, 10.1002/aenm.201703173 Li, 2019, Capacitance improvements of V4C3T by NH3 annealing, J Alloy Compd, 784, 923, 10.1016/j.jallcom.2019.01.111 Guo, 2017, Two-dimensional scandium-based carbides (MXene): band gap modulation and optical properties, J Alloy Compd, 712, 752, 10.1016/j.jallcom.2017.04.149 Balci, 2017, Band gap modification in doped MXene: Sc2CF2, J Mater Chem C Mater, 5, 5956, 10.1039/C7TC01765K Yu, 2019, Ti3C2Tx (MXene)-silicon heterojunction for efficient photovoltaic cells, Adv Energy Mater, 9, 1901063, 10.1002/aenm.201901063 Zhang, 2021, Air-stable MXene/GaAs heterojunction solar cells with a high initial efficiency of 9.69%, J Mater Chem A Mater, 9, 16160, 10.1039/D1TA04194K Bati, 2021, Cesium-doped Ti3C2Tx MXene for efficient and thermally stable perovskite solar cells, Cell Rep Phys Sci, 100598 Lyu, 2019, Large-area MXene electrode array for flexible electronics, ACS Nano, 13, 11392, 10.1021/acsnano.9b04731 Feng, 2017, Structures and mechanical and electronic properties of the Ti2CO2 MXene incorporated with neighboring elements (Sc, V, B and N), J Electron Mater, 46, 2460, 10.1007/s11664-017-5311-5 Zhou, 2017, Current rectification induced by V-doped and Sc-doped in Ti2CO2 devices, Comput Mater Sci, 138, 175, 10.1016/j.commatsci.2017.06.017 Zhou, 2018, Effects of different surface functionalization and doping on the electronic transport properties of M2CT x–M2CO2 heterojunction devices, J Phys Chem C, 122, 14908, 10.1021/acs.jpcc.8b02026 Chen, 2022, Work-function-tunable MXenes electrodes to optimize p-CsCu 2 I 3 /n-Ca 2 Nb 3–x Ta x O 10 junction photodetectors for image sensing and logic electronics, Adv Funct Mater, 32, 2201066, 10.1002/adfm.202201066 Shao, 2020, Two-dimensional transition metal carbide and nitride (MXene) derived quantum dots (QDs): Synthesis, properties, applications and prospects, J Mater Chem A Mater, 8, 7508, 10.1039/D0TA01552K Safaei M, Shishehbore MR. Energy conversion and optical applications of MXene quantum dots. Journal of Materials Science 2021 56:32 2021;56:17942–78. https://doi.org/10.1007/S10853-021-06428-6. Xu, 2018, High photoluminescence quantum yield of 18.7% by using nitrogen-doped Ti3C2 MXene quantum dots, J Mater Chem C Mater, 6, 6360, 10.1039/C8TC02156B Xu, 2019, Hydrochromic full-color MXene quantum dots through hydrogen bonding toward ultrahigh-efficiency white light-emitting diodes, Appl Mater Today, 16, 90, 10.1016/j.apmt.2019.05.001 Guan, 2019, Highly fluorescent Ti3C2 MXene quantum dots for macrophage labeling and Cu2+ ion sensing, Nanoscale, 11, 14123, 10.1039/C9NR04421C Feng, 2020, Solvothermal synthesis of in situ nitrogen-doped Ti3C2 MXene fluorescent quantum dots for selective Cu2+ detection, Ceram Int, 46, 8320, 10.1016/j.ceramint.2019.12.063 Huang, 2021, Fluorescent nitrogen-doped Ti3C2 MXene quantum dots as a unique “on-off-on” nanoprobe for chrominum (VI) and ascorbic acid based on inner filter effect, Sens Actuat B Chem, 342, 10.1016/j.snb.2021.130074 Jiang, 2022, Nitrogen-doped Ti3C2 MXene quantum dots as novel high-efficiency electrochemiluminescent emitters for sensitive mucin 1 detection, Sens Actuators B Chem, 350, 10.1016/j.snb.2021.130891 Yan, 2021, Solvothermal synthesis of nitrogen-doped MXene quantum dots for the detection of alizarin red based on inner filter effect, Dyes Pigm, 195, 10.1016/j.dyepig.2021.109720 Lu, 2020, Dual-emission reverse change ratio photoluminescence sensor based on a probe of nitrogen-doped Ti 3 C 2 quantum dots@DAP to detect H 2 O 2 and xanthine, Anal Chem, 92, 7770, 10.1021/acs.analchem.0c00895 Wang, 2021, Mechanism of nitrogen-doped Ti3C2 quantum dots for free-radical scavenging and the ultrasensitive H2O2 detection performance, ACS Appl Mater Interfaces, 13, 42442, 10.1021/acsami.1c11242 Gou, 2021, Nitrogen-doped Ti 2 C MXene quantum dots as antioxidants, ACS Appl Nano Mater, 4, 12308, 10.1021/acsanm.1c02783 Fu, 2022, Eu doped Ti3C2 quantum dots to form a ratiometric fluorescence platform for visual and quantitative point-of-care testing of tetracycline derivatives, Spectrochim Acta A Mol Biomol Spectrosc, 272, 10.1016/j.saa.2022.120956 Zhao, 2021, Designed synthesis of chlorine and nitrogen co-doped Ti3C2 MXene quantum dots and their outstanding hydroxyl radical scavenging properties, J Mater Sci Technol, 78, 30, 10.1016/j.jmst.2020.10.048 Xu, 2020, Highly green fluorescent Nb2C MXene quantum dots, Chem Commun, 56, 6648, 10.1039/D0CC02131H Li, 2022, Highly fluorescence Ta4C3 MXene quantum dots as fluorescent nanoprobe for heavy ion detection and stress monitoring of fluorescent hydrogels, Chin Chem Lett, 33, 1850, 10.1016/j.cclet.2021.11.020 Huang, 2019, Demonstration of a white laser with V 2 C MXene-based quantum dots, Adv Mater, 1901117, 10.1002/adma.201901117 Li, 2022, Machine learning guided full-color V 4 C 3 MXene quantum dots for building WLEDs, J Mater Chem C Mater, 10, 14282, 10.1039/D2TC02969C Wang, 2022, An inorganic base stripping approach to synthesize N-doped Ti3C2 quantum dots as fluorescence nanoprobe for the simultaneous detection of Co2+ and Ag+ ions, Microchem J, 180, 10.1016/j.microc.2022.107629 Wan, 2022, Covalently N-doped MXene quantum dots for highly stable fluorescent Cu 2+ ion sensor, ACS Appl Nano Mater, 5, 11715, 10.1021/acsanm.2c02699 Ren, 2023, MXene-derived Ti3C2 quantum dots-based ratiometric fluorescence probe for ascorbic acid and acid phosphatase determination, Microchem J, 187, 10.1016/j.microc.2023.108397 Kuang, 2020, MXene-based photocatalysts, J Mater Sci Technol, 56, 18, 10.1016/j.jmst.2020.02.037 Zhao, 2020, MXenes as co-catalysts for the solar-driven photocatalytic reduction of CO2, J Mater Chem C Mater, 8, 16258, 10.1039/D0TC02979C Tariq, 2018, Efficient visible-light photocatalysis of 2D-MXene nanohybrids with Gd3+- and Sn4+-codoped bismuth ferrite, ACS Omega, 3, 13828, 10.1021/acsomega.8b01951 Ke, 2021, In situ growth of TiO2 nanoparticles on nitrogen-doped Ti3C2 with isopropyl amine toward enhanced photocatalytic activity, J Hazard Mater, 402, 10.1016/j.jhazmat.2020.124066 Cao, 2023, Space-confined metal ion strategy for carbon materials derived from cobalt benzimidazole frameworks with high desalination performance in simulated seawater, Adv Mater, 10.1002/adma.202301011 Pei, 2021, Ti 3 C 2 T X MXene for sensing applications: recent progress, design principles, and future perspectives, ACS Nano, 15, 3996, 10.1021/acsnano.1c00248 Sun, 2021, Skin-conformal MXene-doped wearable sensors with self-adhesive, dual-mode sensing, and high sensitivity for human motions and wireless monitoring, J Mater Chem B, 9, 8667, 10.1039/D1TB01769A Bhardwaj, 2022, Advances in MXenes-based optical biosensors: a review, Biosens Bioelectron, 202, 10.1016/j.bios.2022.113995 Ud Din Babar Z, Bartolomeo Della Ventura ab, Velotta R, Iannotti V. Advances and emerging challenges in MXenes and their nanocomposites for biosensing applications. RSC Adv 2022;12:19590–610. https://doi.org/10.1039/D2RA02985E. Lee, 2019, Two-dimensional vanadium carbide MXene for gas sensors with ultrahigh sensitivity toward nonpolar gases, ACS Sens, 4, 1603, 10.1021/acssensors.9b00303 Koh H-J, Kim SJ, Maleski K, Cho S-Y, Kim Y-J, Ahn CW, et al. Enhanced Selectivity of MXene Gas Sensors through Metal Ion Intercalation: In Situ X-ray Diffraction Study. ACS Sens 2019;4:1365–72. https://doi.org/10.1021/acssensors.9b00310. Wu, 2019, Ti 3 C 2 MXene-based sensors with high selectivity for NH 3 detection at room temperature, ACS Sens, 4, 2763, 10.1021/acssensors.9b01308 Khakbaz, 2019, Titanium carbide MXene as NH 3 sensor: realistic first-principles study, J Phys Chem C, 123, 29794, 10.1021/acs.jpcc.9b09823 Xiao, 2016, MXenes: reusable materials for NH3 sensor or capturer by controlling the charge injection, Sens Actuat B Chem, 235, 103, 10.1016/j.snb.2016.05.062 Ma Y, Liu N, Li L, Hu X, Zou Z, Wang J, et al. A highly flexible and sensitive piezoresistive sensor based on MXene with greatly changed interlayer distances. Nature Communications 2017 8:1 2017;8:1–8. https://doi.org/10.1038/s41467-017-01136-9. Li, 2020, Hydrophobic and stable MXene–polymer pressure sensors for wearable electronics, ACS Appl Mater Interfaces, 12, 15362, 10.1021/acsami.0c00255 Cheng, 2020, Bioinspired microspines for a high-performance spray Ti 3 C 2 T x MXene-based piezoresistive sensor, ACS Nano, 14, 2145, 10.1021/acsnano.9b08952 Yue, 2018, 3D hybrid porous Mxene-sponge network and its application in piezoresistive sensor, Nano Energy, 50, 79, 10.1016/j.nanoen.2018.05.020 Osti, 2016, Effect of metal ion intercalation on the structure of MXene and water dynamics on its internal surfaces, ACS Appl Mater Interfaces, 8, 8859, 10.1021/acsami.6b01490 Célérier, 2019, Hydration of Ti 3 C 2 T x MXene: an interstratification process with major implications on physical properties, Chem Mater, 31, 454, 10.1021/acs.chemmater.8b03976 Muckley, 2018, Multi-modal, ultrasensitive, wide-range humidity sensing with Ti3C2 film, Nanoscale, 10, 21689, 10.1039/C8NR05170D Li, 2019, High-performance humidity sensor based on urchin-like composite of Ti 3 C 2 MXene-derived TiO 2 nanowires, ACS Appl Mater Interfaces, 11, 38116, 10.1021/acsami.9b12168 Zhang, 2019, Highly stretchable and self-healable MXene/polyvinyl alcohol hydrogel electrode for wearable capacitive electronic skin, Adv Electron Mater, 5, 1900285, 10.1002/aelm.201900285 Yao, 2022, Rapid advances of versatile MXenes for electrochemical enzyme-based biosensors, immunosensors, and nucleic acid-based biosensors, ChemElectroChem, 9, e202200103, 10.1002/celc.202200103 Rhouati, 2022, MXene-based electrochemical sensors for detection of environmental pollutants: a comprehensive review, Chemosphere, 291, 10.1016/j.chemosphere.2021.132921 Scheibe, 2019, Cytotoxicity assessment of Ti–Al–C based MAX phases and Ti 3 C 2 T x MXenes on human fibroblasts and cervical cancer cells, ACS Biomater Sci Eng, 5, 6557, 10.1021/acsbiomaterials.9b01476 Shahzad, 2019, Nafion-stabilized two-dimensional transition metal carbide (Ti3C2Tx MXene) as a high-performance electrochemical sensor for neurotransmitter, J Ind Eng Chem, 79, 338, 10.1016/j.jiec.2019.03.061 Wang, 2019, A label-free electrochemical biosensor for highly sensitive detection of gliotoxin based on DNA nanostructure/MXene nanocomplexes, Biosens Bioelectron, 142, 10.1016/j.bios.2019.111531 Kalambate, 2019, Recent advances in MXene–based electrochemical sensors and biosensors, TrAC Trends Anal Chem, 120, 10.1016/j.trac.2019.115643 In Jhon, 2017, Metallic MXene saturable absorber for femtosecond mode-locked lasers, Adv Mater, 29, 1702496, 10.1002/adma.201702496 Chen, 2020, Refractive index sensors based on Ti 3 C 2 T x MXene fibers, ACS Appl Nano Mater, 3, 303, 10.1021/acsanm.9b01889 Chertopalov, 2018, Environment-sensitive photoresponse of spontaneously partially oxidized Ti 3 C 2 MXene thin films, ACS Nano, 12, 6109, 10.1021/acsnano.8b02379 Deng, 2019, All-sprayed-processable, large-area, and flexible perovskite/MXene-based photodetector arrays for photocommunication, Adv Opt Mater, 7, 1801521, 10.1002/adom.201801521 Mohammadniaei, 2020, Gold nanoparticle/MXene for multiple and sensitive detection of oncomiRs based on synergetic signal amplification, Biosens Bioelectron, 159, 10.1016/j.bios.2020.112208 Ma, 2017, A highly flexible and sensitive piezoresistive sensor based on MXene with greatly changed interlayer distances, Nat Commun, 8, 1207, 10.1038/s41467-017-01136-9 Lei, 2022, Roles of MXene in pressure sensing: preparation, composite structure design, and mechanism, Adv Mater, 34, 2110608, 10.1002/adma.202110608 Kadirsoy, 2020, Molecularly imprinted QCM sensor based on delaminated MXene for chlorpyrifos detection and QCM sensor validation, New J Chem, 44, 6524, 10.1039/D0NJ00951B Zhou, 2020, Humidity-enabled ionic conductive trace carbon dioxide sensing of nitrogen-doped Ti3C2TxMXene/polyethyleneimine composite films decorated with reduced graphene oxide nanosheets, Anal Chem, 92, 16033, 10.1021/acs.analchem.0c03664 Medetalibeyoglu, 2020, Validated electrochemical immunosensor for ultra-sensitive procalcitonin detection: Carbon electrode modified with gold nanoparticles functionalized sulfur doped MXene as sensor platform and carboxylated graphitic carbon nitride as signal amplification, Sens Actuat B Chem, 319, 10.1016/j.snb.2020.128195 Lorencova, 2017, Electrochemical performance of Ti3C2Tx MXene in aqueous media: towards ultrasensitive H2O2 sensing, Electrochim Acta, 235, 471, 10.1016/j.electacta.2017.03.073 Wang, 2020, Titanium carbide MXenes mediated in situ reduction allows label-free and visualized nanoplasmonic sensing of silver ions, Anal Chem, 92, 4623, 10.1021/acs.analchem.0c00164 Ho, 2021, Sensing with MXenes: progress and prospects, Adv Mater, 33, 2005846, 10.1002/adma.202005846 Cao, 2019, A catalytic molecule machine-driven biosensing method for amplified electrochemical detection of exosomes, Biosens Bioelectron, 141, 10.1016/j.bios.2019.111397 WU Q, BI H-M, HAN X-J. Research Progress of Electrochemical Detection of Heavy Metal Ions. Chinese Journal of Analytical Chemistry 2021;49:330–40. https://doi.org/10.1016/S1872-2040(21)60083-X. Wang, 2020, Detection of inosine monophosphate (IMP) in meat using double-enzyme sensor, Food Anal Methods, 13, 420, 10.1007/s12161-019-01652-y Fang, 2020, Black phosphorus quantum dots functionalized MXenes as the enhanced dual-mode probe for exosomes sensing, Sens Actuat B Chem, 305, 10.1016/j.snb.2019.127544 Abdul Rasheed, 2020, Nb-based MXenes for efficient electrochemical sensing of small biomolecules in the anodic potential, Electrochem Commun, 119, 10.1016/j.elecom.2020.106811 Zhao, 2020, A high-performance trace level acetone sensor using an indispensable V 4 C 3 T x MXene, RSC Adv, 10, 1261, 10.1039/C9RA09069J Lorencova, 2018, Highly stable Ti3C2Tx (MXene)/Pt nanoparticles-modified glassy carbon electrode for H2O2 and small molecules sensing applications, Sens Actuat B Chem, 263, 360, 10.1016/j.snb.2018.02.124 Pandey, 2020, CsPbBr 3 –Ti 3 C 2 T x MXene QD/QD heterojunction: photoluminescence quenching, charge transfer, and Cd ion sensing application, ACS Appl Nano Mater, 3, 3305, 10.1021/acsanm.0c00051 Zhao, 2019, High-performance flexible sensing devices based on polyaniline/MXene nanocomposites, InfoMat, 1, 407, 10.1002/inf2.12032 Liu, 2020, A ’’naked-eye’’ colorimetric and ratiometric fluorescence probe for uric acid based on Ti3C2 MXene quantum dots, Anal Chim Acta, 1103, 134, 10.1016/j.aca.2019.12.069 Guan, 2019, Highly fluorescent Ti 3 C 2 MXene quantum dots for macrophage labeling and Cu 2+ ion sensing, Nanoscale, 11, 14123, 10.1039/C9NR04421C Chen, 2020, Nanohybrids of a MXene and transition metal dichalcogenide for selective detection of volatile organic compounds, Nat Commun, 11, 1302, 10.1038/s41467-020-15092-4 Sun, 2020, W18O49/Ti3C2Tx Mxene nanocomposites for highly sensitive acetone gas sensor with low detection limit, Sens Actuators B Chem, 304, 10.1016/j.snb.2019.127274 Lee, 2020, Room-temperature, highly durable Ti 3 C 2 T x MXene/graphene hybrid fibers for NH 3 gas sensing, ACS Appl Mater Interfaces, 12, 10434, 10.1021/acsami.9b21765 Wang, 2020, Ti3C2T /PEDOT:PSS hybrid materials for room-temperature methanol sensor, Chin Chem Lett, 31, 1018, 10.1016/j.cclet.2019.11.031 Yuan, 2018, A flexible VOCs sensor based on a 3D Mxene framework with a high sensing performance, J Mater Chem A Mater, 6, 18116, 10.1039/C8TA06928J Liu, 2019, MXene-Enabled Electrochemical Microfluidic Biosensor: Applications toward Multicomponent Continuous Monitoring in Whole Blood, Adv Funct Mater, 29, 1807326, 10.1002/adfm.201807326 Wang, 2015, TiO2 nanoparticle modified organ-like Ti3C2 MXene nanocomposite encapsulating hemoglobin for a mediator-free biosensor with excellent performances, Biosens Bioelectron, 74, 1022, 10.1016/j.bios.2015.08.004 Wu, 2018, 2D transition metal carbide MXene as a robust biosensing platform for enzyme immobilization and ultrasensitive detection of phenol, Biosens Bioelectron, 107, 69, 10.1016/j.bios.2018.02.021 Zhang, 2019, MXene with great adsorption ability toward organic dye: an excellent material for constructing a ratiometric electrochemical sensing platform, ACS Sens, 4, 2058, 10.1021/acssensors.9b00654 Zhao, 2020, Self-reduction bimetallic nanoparticles on ultrathin MXene nanosheets as functional platform for pesticide sensing, J Hazard Mater, 384, 10.1016/j.jhazmat.2019.121358 Chen, 2021, MXene/carbon nanohorns decorated with conductive molecularly imprinted poly(hydroxymethyl-3,4-ethylenedioxythiophene) for voltammetric detection of adrenaline, Microchim Acta, 188, 420, 10.1007/s00604-021-05079-3 Lian, 2022, Nitrogen and sulfur co-doped Nb2C-MXene nanosheets for the ultrasensitive electrochemical detection dopamine under acidic conditions in gastric juice, J Electroanal Chem, 904, 10.1016/j.jelechem.2021.115849 Anupriya, 2022, A precise electrochemical sensor based on Sm2O3/2D TiC hybrid for highly sensitive and selective detection of antihypertensive drug nimodipine, Colloids Surf A Physicochem Eng Asp, 641, 10.1016/j.colsurfa.2022.128531 Xue, 2022, Ti 3 C 2 T x (MXene)/Pt nanoparticle electrode for the accurate detection of DA coexisting with AA and UA, Dalton Trans, 51, 4549, 10.1039/D2DT00110A Shetty, 2023, Iron single-atom catalysts on MXenes for ultrasensitive monitoring of adrenal tumor markers and cellular dopamine, Adv Mater Technol, 8, 2202069, 10.1002/admt.202202069 Shi, 2022, SnO2 quantum dots-functionalized Ti3C2 MXene nanosheets for electrochemical determination of dopamine in body fluids, Microchim Acta, 189, 451, 10.1007/s00604-022-05555-4 Liu, 2021, A direct electrochemical H 2 S sensor based on Ti 3 C 2 T x MXene, ChemElectroChem, 8, 3658, 10.1002/celc.202100964 Su, 2022, Ti3C2Tx-reduced graphene oxide nanocomposite-based electrochemical sensor for serotonin in human biofluids, Sens Actuat B Chem, 367, 10.1016/j.snb.2022.132019 Kashefi-Kheyrabadi, 2021, A MoS2@Ti3C2Tx MXene hybrid-based electrochemical aptasensor (MEA) for sensitive and rapid detection of Thyroxine, Bioelectrochemistry, 137, 10.1016/j.bioelechem.2020.107674 Tan, 2022, MXene-derived metal-organic framework@MXene heterostructures toward electrochemical NO sensing, Small, 18, 2204942, 10.1002/smll.202204942 Wan, 2023, MXene quantum dots enhanced 3D-printed electrochemical sensor for the highly sensitive detection of dopamine, Microchem J, 184, 10.1016/j.microc.2022.108180 Chen, 2022, MXene/CNTs/Cu-MOF electrochemical probe for detecting tyrosine, Carbon N Y, 199, 110, 10.1016/j.carbon.2022.07.021 Zhang, 2022, Ti3C2-MXene@N-doped carbon heterostructure-based electrochemical sensor for simultaneous detection of heavy metals, J Electroanal Chem, 911, 10.1016/j.jelechem.2022.116239 Wang, 2020, Humidity activated ionic-conduction formaldehyde sensing of reduced graphene oxide decorated nitrogen-doped MXene/titanium dioxide composite film, Sens Actuat B Chem, 323, 10.1016/j.snb.2020.128695 Lin H, Chen Y, Shi J. Insights into 2D MXenes for Versatile Biomedical Applications: Current Advances and Challenges Ahead. Advanced Science 2018;5. https://doi.org/10.1002/advs.201800518. Liu, 2018, Facile synthesis of ultrasmall Fe3O4 nanoparticles on MXenes for high microwave absorption performance, Compos A Appl Sci Manuf, 115, 371, 10.1016/j.compositesa.2018.10.014 Long, 2019, Progress, challenges, and opportunities for 2D material based photodetectors, Adv Funct Mater, 29, 1803807, 10.1002/adfm.201803807 Fan, 2019, A novel sandwich-type photoelectrochemical immunosensor based on Ru(bpy) 32+ and Ce-CdS co-sensitized hierarchical ZnO matrix and dual-inhibited polystyrene@CuS-Ab 2 composites, Biosens Bioelectron, 129, 124, 10.1016/j.bios.2019.01.029 Nallal, 2017, New titanium dioxide-based heterojunction nanohybrid for highly selective photoelectrochemical-electrochemical dual-mode sensors, ACS Appl Mater Interfaces, 9, 37166, 10.1021/acsami.7b10519 Muthuchamy, 2017, Enhanced photoelectrochemical biosensing performances for graphene (2D) – Titanium dioxide nanowire (1D) heterojunction polymer conductive nanosponges, Biosens Bioelectron, 89, 390, 10.1016/j.bios.2016.06.005 Wang, 2017, Label-free and high-throughput biosensing of multiple tumor markers on a single light-addressable photoelectrochemical sensor, Biosens Bioelectron, 91, 53, 10.1016/j.bios.2016.12.029 Gopalan, 2017, A novel bismuth oxychloride-graphene hybrid nanosheets based non-enzymatic photoelectrochemical glucose sensing platform for high performances, Biosens Bioelectron, 89, 352, 10.1016/j.bios.2016.07.017 Liu, 2019, Ti3C2/BiVO4 Schottky junction as a signal indicator for ultrasensitive photoelectrochemical detection of VEGF165, Chem Commun, 55, 13729, 10.1039/C9CC07108C Zhu, 2019, Three-dimensional CdS@carbon fiber networks: innovative synthesis and application as a general platform for photoelectrochemical bioanalysis, Anal Chem, 91, 25, 10.1021/acs.analchem.9b01186 Liu, 2020, Highly sensitive photoelectrochemical biosensor for microRNA159c detection based on a Ti3C2:CdS nanocomposite of breast cancer, Biosens Bioelectron, 165, 10.1016/j.bios.2020.112416 Soomro, 2020, In-situ engineered MXene-TiO2/ BiVO4 hybrid as an efficient photoelectrochemical platform for sensitive detection of soluble CD44 proteins, Biosens Bioelectron, 166, 10.1016/j.bios.2020.112439 Hemanth, 2020, Recent advances in 2D MXenes for enhanced cation intercalation in energy harvesting applications: a review, Chem Eng J, 392, 10.1016/j.cej.2019.123678 Zhang, 2020, Planar supercapacitor with high areal capacitance based on Ti3C2/Polypyrrole composite film, Electrochim Acta, 330, 10.1016/j.electacta.2019.135277 Zhang, 2020, CoOOH nanosheets-coated g-C3N4/CuInS2 nanohybrids for photoelectrochemical biosensor of carcinoembryonic antigen coupling hybridization chain reaction with etching reaction, Sens Actuat B Chem, 307, 10.1016/j.snb.2019.127631 Khazaei, 2019, Recent advances in MXenes: from fundamentals to applications, Curr Opin Solid State Mater Sci, 23, 164, 10.1016/j.cossms.2019.01.002 Rasool, 2016, Antibacterial activity of Ti3C2Tx MXene, ACS Nano, 10, 3674, 10.1021/acsnano.6b00181 Yang, 2013, Nano-graphene in biomedicine: theranostic applications, Chem Soc Rev, 42, 530, 10.1039/C2CS35342C Huang, 2020, Two-dimensional MXene-based materials for photothermal therapy, Nanophotonics, 9, 2233, 10.1515/nanoph-2019-0571 Huang, 2018, Two-dimensional transition metal carbides and nitrides (MXenes) for biomedical applications, Chem Soc Rev, 47, 5109, 10.1039/C7CS00838D Dong, 2020, Two-dimensional metal carbides and nitrides (MXenes): preparation, property, and applications in cancer therapy, Nanophotonics, 9, 2125, 10.1515/nanoph-2019-0550 Lin, 2020, A two-dimensional MXene potentiates a therapeutic microneedle patch for photonic implantable medicine in the second NIR biowindow, Nanoscale, 12, 10265, 10.1039/D0NR01444C Wang, 2020, Chemistry of two-dimensional MXene nanosheets in theranostic nanomedicine, Chin Chem Lett, 31, 937, 10.1016/j.cclet.2019.11.016 Zhang, 2019, Sodium-ion battery anodes: status and future trends, EnergyChem, 1, 10.1016/j.enchem.2019.100012 Balogun, 2016, A review of carbon materials and their composites with alloy metals for sodium ion battery anodes, Carbon N Y, 98, 162, 10.1016/j.carbon.2015.09.091 Asher, 1958, Lamellar compound of sodium with graphite [10], Nature, 181, 409, 10.1038/181409a0 Tan, 2019, Peering into alloy anodes for sodium-ion batteries: current trends, challenges, and opportunities, Adv Funct Mater, 29, 1808745, 10.1002/adfm.201808745 Bruce, 2012, LigO2 and LigS batteries with high energy storage, Nat Mater, 11, 19, 10.1038/nmat3191 Yu, 2014, Capacity enhancement and discharge mechanisms of room-temperature sodium-sulfur batteries, ChemElectroChem, 1, 1275, 10.1002/celc.201402112 Lin, 2019, Construction of Ti3C2 MXene/O-doped g-C3N4 2D–2D Schottky-junction for enhanced photocatalytic hydrogen evolution, Ceram Int, 45, 24656, 10.1016/j.ceramint.2019.08.203 Iqbal, 2019, La- and Mn-codoped bismuth ferrite/Ti 3 C 2 MXene composites for efficient photocatalytic degradation of congo red dye, ACS Omega, 4, 8661, 10.1021/acsomega.9b00493