A novel, environmentally friendly and facile method for oxidative energy storage in nickel hydroxide film electrodes

被引：3

作者：

Fang Wen-bin ^{[1
]}

Lian Hui-qin ^{[1
]}

Wang Jian-ming ^{[1
]}

Xu Lei ^{[1
]}

Zhang Li-ying ^{[1
]}

Zhang Jian-qing ^{[1
]}

Ju Chun-shan ^{[2
]}

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China

[2] Jiangsu Huafu Energy Sources Co Ltd, Gaoyou 225600, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 02期

基金：

中国国家自然科学基金;

关键词：

oxidative energy storage; nickel hydroxide film; oxygen-reducing cathode; oxidation; DEPOSITION; CATHODE;

D O I：

10.1016/S1003-6326(11)61180-1

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The oxidative energy storage behaviors of a designed novel system comprising a nickel hydroxide film electrode and an oxygen-reducing platinum cathode were investigated by various electrochemical techniques. The structure and morphology of samples were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis. It is found that the oxidative energy storage in the Ni(OH)(2) electrodes can be obviously enhanced in the coupling system containing the cathode electrolytes with higher oxygen content or lower pH value. The results of the oxidation-discharge cycle tests show that the Ni(OH)(2) film electrode oxidized in the coupling system with 1.0 mol/L Na2SO4 (pH=2) as cathode electrolyte for 600 s presents discharge capacities of 79.0 mC/cm(2) at the first cycle and 97.9 mC/cm(2) at the 12th cycle, suggesting the excellent reversibility of the investigated oxidative energy storage and conversion system.

引用

页码：335 / 341

页数：7

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