Effect of Ce content on structure and electrochemical properties of La0.8᾿em>x Ce x Pr0.1Nd
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- 作者：J. Y. Hu ; H. Y. Zhou ; P. Liu ; Q. R. Yao ; J. Q. Deng…
- 关键词：AB5 alloy ; Ce content ; metal hydride (MH) electrode material ; high ; rate dischargeability (HRD)
- 刊名：Russian Journal of Electrochemistry
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：52
- 期：2
- 页码：169-173
- 全文大小：541 KB
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H. Y. Zhou (1)
P. Liu (1)
Q. R. Yao (1)
J. Q. Deng (1)
Z. M. Wang (1)
1. School of Materials Science and Engineering, Guilin University of Electronic Technology, Guilin, 541004, PR China - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Electrochemistry
Physical Chemistry
Russian Library of Science - 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
- ISSN：1608-3342
文摘
The structure and electrochemical properties of La0.8–x Ce x Pr0.1Nd0.1B5 (B5 ≡ Ni3.8Co1.1Mn0.1; x = 0, 0.1, 0.2, 0.3) hydrogen storage alloys have been investigated. The results show that all alloys consist of CaCu5-type single phase. The maximum discharge capacity of the alloy electrodes decreases from 368.7 mA h g–1 (x = 0) to 294.9 mA h g–1 (x = 0.30), the cyclic stability (S100) increases from 37.6% (x = 0) to 69.8% (x = 0.20) after 100 charge/discharge cycles, and the HRD1200 first increases from 69.5% (x = 0) to 85.2% (x = 0.20), then decreases to 80.8% (x = 0.30). Meanwhile, the electrochemical kinetic characteristics of the La0.8‒x Ce x Pr0.1Nd0.1B5 alloy electrodes are also improved by increasing Ce content.