Freestanding 3D Graphene–Nickel Encapsulated Nitrogen‐Rich Aligned Bamboo Like Carbon Nanotubes for High‐Performance Supercapacitors with Robust Cycle Stability

Advanced Materials Interfaces - Tập 2 Số 15 - 2015
Rajesh Kumar1, Rajesh Kumar Singh2, Pawan Kumar Dubey3, Dinesh Pratap Singh4, Ram Manohar Yadav5, R. S. Tiwari6
1Center for Semiconductor Components, State University of Campinas (UNICAMP), 13083-870 Campinas, Sao Paulo, Brazil
2Department of Physics, Indian Institute of Technology (Banaras Hindu University), Varanasi 221005, Uttar Pradesh, India
3Nanotechnology Application Centre University of Allahabad Allahabad 211002 Uttar Pradesh India
4Avenida Ecuador 3493 Estación Central Departamento de Física Universidad de Santiago de Chile Santiago 9170124 Chile
5Department of Physics, VSSD College, Kanpur 208002, Uttar Pradesh, India
6Department of Physics, Banaras Hindu University, Varanasi 221005, Uttar Pradesh, India

Tóm tắt

3D hierarchical structures are reported based on graphene–nickel encapsulated nitrogen‐rich aligned bamboo like carbon nanotubes, which show not only high‐performance supercapacitance behavior but also a great robust cyclic stability. A facile synthesis route is developed of 2D nickel oxide decorated functionalized graphene nanosheets (2D‐NiO‐f:GNSs) hybrids and 3D nitrogen doped bamboo‐shaped carbon nanotubes (NCNTs) vertically standing on the functionalized graphene nanosheets (3D‐NCNT@f:GNSs) by using a thermal decomposition method. The chemical reduction and morphology‐dependent electrochemical response are investigated. The enhanced specific capacitance of 3D‐NCNT@f:GNSs as compared to that of 2D‐NiO‐f:GNSs suggests the synergistic effects and indicates the importance of energy storage and superior long‐term cycling performance that are achieved. This 3D‐NCNT@f:GNSs hybrid shows a remarkable cycling stability with a maximum power density of 12.32 kW kg−1 and maximum energy density of 109.13 Wh kg−1 due to the good connection of NCNT and f:GNSs. This unique 3D nano network architecture enables the availability of large surface areas of NCNT, thus endowing the nanohybrids with high specific capacitance and excellent reusability.

Từ khóa


Tài liệu tham khảo

10.1039/c0ee00683a

10.1021/nn901850u

10.1039/c0jm00467g

10.1039/C1EE02800F

10.1039/c1ee01942b

10.1021/nl802558y

10.1021/nl0731872

10.1016/j.ssc.2008.02.024

10.1126/science.6867717

10.1126/science.1156965

10.1021/nl803279t

10.1039/C1NR11307K

10.1016/j.jallcom.2011.02.136

10.1016/j.apsusc.2011.11.046

10.1016/S0013-4686(00)00354-6

10.1038/nmat2297

10.1039/b906253j

10.1002/adma.201104110

10.1002/ente.201500059

10.1002/cplu.201100058

10.1021/nn102308r

10.1002/aenm.201100001

10.1016/j.nanoen.2013.10.005

10.1002/adma.201401243

10.1021/nl801417w

10.1039/c003710a

10.1039/c0ee00326c

10.1016/j.jallcom.2011.03.138

10.1016/j.electacta.2011.03.143

10.1021/nl070681x

10.1063/1.3005599

10.1016/j.carbon.2005.11.027

10.1039/c3ta11740e

10.1016/S0009-2614(02)00996-X

10.1007/s12274-010-1037-x

10.1103/PhysRevB.39.13053

10.3762/bjnano.5.24

10.1039/c3nr05307e

10.1088/0957-4484/25/13/135707

10.1038/srep05466

10.1016/j.cej.2011.12.075

10.1039/C4RA00518J

10.1039/c2jm34683d

10.1039/C3TA14050D

Chastain J., 1992, Handbook of X‐Ray Photoelectron Spectroscopy: A Reference Book of Standard Spectra for Identification and Interpretation of XPS Data

10.1016/j.jpowsour.2015.05.004

10.1016/j.carbon.2007.10.034

10.1021/nn700230n

10.1016/j.apcatb.2009.09.025

10.1016/j.jcat.2006.01.022

10.1038/nnano.2010.132

10.1063/1.4811882

10.1016/j.jpowsour.2011.10.003

10.1002/smll.201102635

10.1002/adfm.201401216

10.1021/ef401190b

10.1039/c2jm31526b

10.1002/anie.201101083

10.1038/ncomms2932

10.1039/c2ra01367c

10.1016/j.carbon.2012.03.029

10.1016/j.jssc.2011.01.019

10.1002/chem.201100727

10.1021/am400012h

10.1016/j.electacta.2013.10.140

10.1021/am404691w

10.1016/j.electacta.2014.01.005

10.1016/j.electacta.2014.12.029

10.1016/j.electacta.2014.10.156

10.1016/j.electacta.2015.05.072

10.1016/j.carbon.2014.12.005

D. B.Wright E. F.Loftus 1999 112 497.

Thông tin
Thông tin xuất bản

Advanced Materials Interfaces

Tập 2 Số 15

Thông tin tác giả