Preparation of hexagonal nanoporous nickel hydroxide film and its application for electrochemical capacitor

被引：259

作者：

Zhao, Dan-Dan ^{[1
]}

Bao, Shu-Juan ^{[1
]}

Zhou, Wen-Ha ^{[1
]}

Li, Hu-Lin ^{[1
]}

机构：

[1] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 05期

基金：

中国国家自然科学基金;

关键词：

nanoporous nickel hydroxide film; hexagonal lyotropic liquid crystal template; electrodeposition; electrochemical capacitors (ECs); LIQUID-CRYSTALLINE PHASES; OXIDE; MANGANESE; ELECTRODE; SUPERCAPACITOR; DEPOSITION; STORAGE; SURFACE;

D O I：

10.1016/j.elecom.2006.11.030

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanoporous nickel hydroxide film has been successfully electrodeposited on titanium substrate from nickel nitrate dissolved in the aqueous domains of the hexagonal lyotropic liquid crystalline phase of Brij 56. Low-angle X-ray diffraction (XRD), transmission electron microscopy (TEM), and atomic force microscopy (AFM) studies show that the film has a regular nanostructure consisting of a hexagonal array of cylindrical pores with a repeat center-to-center spacing of about 7 nm. Preliminary electrochemical studies are carried out using cyclic voltammetry (CV) and chronopotentiometry technology. A maximum specific capacitance of 578 F g(-1) could be achieved for the nanoporous Ni(OH)(2) film electrode, suggesting its potential application in electrochemical capacitors. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：869 / 874

页数：6

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