Journal
ELECTROCHIMICA ACTA
Volume 116, Issue -, Pages 372-378Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2013.11.083
Keywords
Electrodeposition; TiN nanowires; Ni(OH)(2); Supercapacitors
Categories
Funding
- NSFC [21173158, 21373152]
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The TiN nanowire arrays (TiN NWAs) were prepared by hydrothermal treatment of Ti foil and subsequent nitridation through ammonia annealing, on which Ni(OH)(2) was electrodeposited to form hierarchical TiN@Ni(OH)(2) core/shell nanowire arrays (TiN@Ni(OH)(2) NWAs). The electrochemical behaviors of TiN@Ni(OH)(2) NWAs were measured by cyclic voltammetry (CV) and galvanostatic charge-discharge, which shows very high specific capacitance (2680 F g(-1) at 6 A g(-1) in 2 M KOH aqueous solution) and good rate capability (54% capacity retention at 60 A g(-1)). These results demonstrate that the TiN@Ni(OH)(2) NWAs nanostructure is very promising for high performance supercapacitors. (c) 2013 Elsevier Ltd. All rights reserved.
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