Abstract
In this paper, a quantitative method by use of powder microelectrode combined with cyclic voltammetry and galvanostatic step is described for studying the electrochemical performance characteristic of hydrogen storage alloy(MH). Since the powder microelectrode uses only MH powder and has its depth and diameter of several tens of micrometer, the ohmic and concentration ploarization are greatly reduced and the influences of the technical factors in electrode preparation on the material performance are simply eliminated. Thus, with accurate determination of the load quantity of MH alloy in power microelectrode by absorption spectrometric technique, it is feasible to evaluate quickly and quantitatively the electrochemical properties of MH alloy as negative electrode material.
Keywords
Powder microelectrode, Hydrogen storage alloy, Cyclic voltammetry, Galvanostatic step
Publication Date
1996-11-28
Online Available Date
1996-11-28
Revised Date
1996-11-28
Received Date
1996-11-28
Recommended Citation
Ronghui Hu, Hanxi Yang, Jingcheng Liu, Shengxian Li, Chuanxin Cha.
Quantitative Evaluation of Electrochemical Properties of MH alloy by powder microelectrode[J]. Journal of Electrochemistry,
1996
,
2(4): Article 5.
DOI: 10.61558/2993-074X.3084
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol2/iss4/5
References
1ChaCS，LiCM，YangHX，LiuPF．Powdermicroelectrodes．J．Electroanal．Chem．，1994，5：92查全性．电极过程动力学导论．北京：科学出版社，1987：3783蔡称心，赵东江，王宝忱．氢在贮氢电极中扩散行为的研究．电源技术，1993，5：94ChenJ，ZhangYS．Nickel／metalhydridebateriesusingmicroencapsulatedhydrogenstoragealoy．Int．J．HydrogenEnergy．，1995，20：2355赵东江，王宝忱．Mn，Al，Co等对混合稀土贮氢合金电化学性能的影响．第六届全国电化学会议论文集，1992，E026胡蓉晖，杨汉西等．贮氢合金电极的活化方法和作用机理研究．电化学，1996，（2）：2
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