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

作者：Yin, Huayi; Wang, Dihua; Zhu, Hua; Xiao, Wei; Gan, Fuxing

来源出版物：ELECTROCHIMICA ACTA卷：99页码：198-203 DOI：10.1016/j.electacta.2013.03.137出版年：JUN 1 2013

入藏号：WOS:000320092100026

文献语种：English

文献类型：Article

作者关键词：Nickel hydroxide, Graphite, Supercapacitor, Self-assembly, Energy storage

扩展关键词：NICKEL-HYDROXIDE; GRAPHENE; BETA-NI(OH)(2)

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.

通讯作者：Wang, Dihua;Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

地址：[Yin, Huayi; Wang, Dihua; Zhu, Hua; Xiao, Wei; Gan, Fuxing] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430072, Peoples R China.

邮箱：wangdh@whu.edu.cn

研究领域：Electrochemistry

ISSN：0013-4686