Structure and electrochemical performance of amorphous nickel hydroxide doped with La and Al

被引：0

作者：

Liu, Chang Jiu ^{[1
]}

Xing, Chun Xiao ^{[1
]}

Chen, Shi Juan ^{[1
]}

Li, Yanwei ^{[1
]}

机构：

[1] Guilin Univ Technol, Coll Chem & Bioengn, Guilin 541004, Peoples R China

来源：

OPTOELECTRONIC MATERIALS, PTS 1AND 2 | 2010年 / 663-665卷

关键词：

Nickel hydroxide; Doping; amorphous; Structure; Electrochemical performance; CRYSTALLINITY;

D O I：

10.4028/www.scientific.net/MSF.663-665.1217

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Amorphous nickel hydroxide powders doped with rare earth La3+ and Al3+ were synthesized by the combined chemical precipitation and rapid freezing method. The microstructure of the samples was characterized by XRD and Raman spectra. The electrochemical performance of the prepared samples was analyzed by electrochemical impedance spectroscopy and charge-discharge tests. The results showed that this amorphous nickel hydroxide codoped with La3+ and Al3+ had more structural defects than those of the undoped amorphous nickel hydroxide and La3+ singly doped amorphous nickel hydroxide. These abundant structural defects with La3+ and Al3+ codoped amorphous nickel hydroxide decreased the electrochemical impedance spectroscopy and improved the electrochemical reversibility of the amorphous nickel hydroxide electrode.

引用

页码：1217 / 1220

页数：4

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