Growing highly capacitive nano-Ni(OH)2 on freshly cut graphite electrode by electrochemically enhanced self-assembly

被引:13
作者
Yin, Huayi [1 ]
Wang, Dihua [1 ]
Zhu, Hua [1 ]
Xiao, Wei [1 ]
Gan, Fuxing [1 ]
机构
[1] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China
关键词
Nickel hydroxide; Graphite; Supercapacitor; Self-assembly; Energy storage; NICKEL-HYDROXIDE; BETA-NI(OH)(2); GRAPHENE;
D O I
10.1016/j.electacta.2013.03.137
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Highly capacitive nano-Ni(OH)(2) spontaneously grows on the surface of a freshly cut graphite electrode (FGE) dipped in a NiCl2 aqueous solution. The obtained nano-Ni(OH)(2)/FGE composite electrode, free of binders and other additives, shows a high specific capacitance of similar to 1850 Fg(-1) in 30 wt% KOH solution. Both capacity and cycling stability of the Ni(OH)(2)/FGE can be improved by electrochemical (cathodic) polarization enhanced self-assembling. The nano-Ni(OH)(2) was supposed to be self-assembled on FGE, where a doped nano-scale active water film incurs the formation of Ni(OH)(2). The results described here provide a facile and low-cost pathway to produce highly capacitive Ni(OH)(2) and Ni(OH)(2)/FGE composite electrode used for energy storage. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码:198 / 203
页数:6
相关论文
共 26 条
[1]  
[Anonymous], 1999, ELECTROCHEMICAL SUPE
[2]   From Conception to Realization: An Historial Account of Graphene and Some Perspectives for Its Future [J].
Dreyer, Daniel R. ;
Ruoff, Rodney S. ;
Bielawski, Christopher W. .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2010, 49 (49) :9336-9344
[3]   Homogeneous growth of nano-sized β-Ni(OH)2 on reduced graphene oxide for high-performance supercapacitors [J].
Fang, Dao-Lai ;
Chen, Zhi-Dao ;
Liu, Xin ;
Wu, Zheng-Fei ;
Zheng, Cui-Hong .
ELECTROCHIMICA ACTA, 2012, 81 :321-329
[4]   The rise of graphene [J].
Geim, A. K. ;
Novoselov, K. S. .
NATURE MATERIALS, 2007, 6 (03) :183-191
[5]   Carbon materials for electrochemical capacitors [J].
Inagaki, Michio ;
Konno, Hidetaka ;
Tanaike, Osamu .
JOURNAL OF POWER SOURCES, 2010, 195 (24) :7880-7903
[6]   Determination of the specific capacitance of conducting polymer/nanotubes composite electrodes using different cell configurations [J].
Khomenko, V ;
Frackowiak, E ;
Béguin, F .
ELECTROCHIMICA ACTA, 2005, 50 (12) :2499-2506
[7]   Electrochemical fabrication of a porous nanostructured nickel hydroxide film electrode with superior pseudocapacitive performance [J].
Kong, De-Shuai ;
Wang, Jian-Ming ;
Shao, Hai-Bo ;
Zhang, Jian-Qing ;
Cao, Chu-nan .
JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (18) :5611-5616
[8]   Nanoporous metal/oxide hybrid electrodes for electrochemical supercapacitors [J].
Lang, Xingyou ;
Hirata, Akihiko ;
Fujita, Takeshi ;
Chen, Mingwei .
NATURE NANOTECHNOLOGY, 2011, 6 (04) :232-236
[9]   Characterization and supercapacitor application of coin-like β-nickel hydroxide nanoplates [J].
Li, Hongliang ;
Liu, Suqin ;
Huang, Chenghuan ;
Zhou, Zhi ;
Li, Yanhua ;
Fang, Dong .
ELECTROCHIMICA ACTA, 2011, 58 :89-94
[10]   Chemical doping of graphene [J].
Liu, Hongtao ;
Liu, Yunqi ;
Zhu, Daoben .
JOURNAL OF MATERIALS CHEMISTRY, 2011, 21 (10) :3335-3345