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Time-varied synthesis of hierarchical ZnO microspheres and their applications in dye-sensitized solar cells
Springer Science and Business Media LLC - Tập 21 - Trang 1797-1804 - 2017
Hierarchically nano-structured ZnO microspheres have been synthesized solvothermally at variable reaction times (6, 12, 36, and 48 h) by using ethylene glycol as a solvent, zinc acetate as precursor, and hexamethylene triamine (HMT) as structure directing agent. The study also focused on the mechanism of time-dependant growth of hierarchical ZnO microspheres and their deployment in dye-sensitized ......
Mass transfer effects on the electropolymerization current efficiency of 3-methylthiophene in the magnetic field
Springer Science and Business Media LLC - Tập 11 - Trang 727-735 - 2006
3-Methylthiophene was chosen as a representative conducting polymer precursor, whose electropolymerization proceeds through the coupling of cation radicals. The density of the solution that contains electrogenerated 3-methylthienyl radicals and early oligomers is higher than the density of the surrounding solution, and at low (<0.2 M) monomer concentrations the diffusion layer falls, compromising ......
Preparation of biomass-activated porous carbons derived from torreya grandis shell for high-performance supercapacitor
Springer Science and Business Media LLC - Tập 21 - Trang 2241-2249 - 2017
In this paper, we reported a novel biomass-derived porous carbon from torreya grandis shell for the first time by means of carbonization and KOH activation under N2. The pore structures were related to the ratio of KOH and activation temperature. N2 adsorption-desorption tests indicated that the sample of AC-800-3 has a maximum specific surface area of 2100.8 m2 g−1 and proper pore volume of 1.02 ......
Electrochemical characterization of conversion coatings of phosphates plus nanostructured TiO2 over magnesium in a simulated body fluid
Springer Science and Business Media LLC - Tập 27 - Trang 3091-3099 - 2023
Temporary or biodegradable implants have emerged as an alternative to the problems presented by permanent implants made of metals highly resistant to corrosion such as Pt, Ti, or Cr–Mo, since the latter must remain in the body for 1–2 years and removed after bone regeneration. Currently, magnesium is being studied due to its biocompatibility and mechanical properties similar to those of bone tissu......
Nanostructured SnO2-TiO2 films as related to lithium intercalation
Springer Science and Business Media LLC - Tập 9 - Trang 698-705 - 2005
The difference in degradation behavior of titania-doped tin dioxide films is explained by a pronounced effect of the doping level on the film dispersity and fine distribution of titania. A two to three times decrease in nanoparticles sizes in the doped films compared with nanoparticles in SnO2 film (20–30 nm) is revealed by using scanning tunneling microscopy (STM). Such STM data (measured in ex s......
Voltammetric sensor for glutathione determination based on ferrocene-modified carbon paste electrode
Springer Science and Business Media LLC - Tập 13 - Trang 1411-1416 - 2008
The electrocatalytic oxidation of glutathione (GSH) has been studied at the surface of ferrocene-modified carbon paste electrode (FMCPE). Cyclic voltammetry (CV), double potential step chronoamperometry, and differential pulse voltammetry (DPV) techniques were used to investigate the suitability of incorporation of ferrocene into FMCPE as a mediator for the electrocatalytic oxidation of GSH in buf......
Cerium oxide nanofiber–based electrochemical immunosensor for detection of sepsis in biological fluid
Springer Science and Business Media LLC - Tập 25 - Trang 2587-2598 - 2021
Sepsis causes life-threatening complications with the highest burden of death and medical expenses in hospitals worldwide. Despite the progression of targeted therapies for sepsis, the challenge of early diagnosis of sepsis-related biomarkers remains. The analysis of the TNF-α and sTREM-1 in biological fluids provides essential information for effective treatments. In this work, we report developi......
Preparation and characterization of Sb2O5-doped Ti/RuO2-ZrO2 for dye decolorization by means of active chlorine
Springer Science and Business Media LLC - - 2014
Effect of conductive polypyrrole in poly(acrylonitrile-co-butyl acrylate) water–based binder on the performance of electrochemical double-layer capacitors
Springer Science and Business Media LLC - Tập 25 - Trang 963-972 - 2020
Electrochemical double-layer capacitors (EDLCs) have been widely studied due to their high-power densities, despite their low energy densities compared with those of lithium ion batteries. In particular, there have been numerous studies aiming to developing high surface area carbonic material to increase EDLCs’ capacitance. However, there have been few studies examining water-based polymeric binde......
Physical and electrochemical characterization of activated carbons with high mesoporous ratio for supercapacitors based on ionic liquid as the electrolyte
Springer Science and Business Media LLC - Tập 15 - Trang 607-613 - 2010
A series of activated carbons with high mesoporous ratio were prepared by KOH reactivation based on activated carbon as the precursor. As the KOH/AC mass ratio was increased to 4:1, the mesoporous ratio increases from 60% to 76%, and the average pore size from 2.23 to 3.14 nm. Moreover, the specific capacitance for the activated carbon in ionic liquid 1-ethyl-3-methylmidazolium tetrafluoroborate (......
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