Effect of Ce content on structure and electrochemical properties of La0.8–xCexPr0.1Nd0.1B5 (B = Ni, Co, Mn; 0 ⩽ x ⩽ 0.3) hydrogen storage alloys
- Авторы: Hu J.1, Zhou H.1, Liu P.1, Yao Q.1, Deng J.1, Wang Z.1
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Учреждения:
- School of Materials Science and Engineering
- Выпуск: Том 52, № 2 (2016)
- Страницы: 169-173
- Раздел: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/187671
- DOI: https://doi.org/10.1134/S1023193515090074
- ID: 187671
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Аннотация
The structure and electrochemical properties of La0.8–xCexPr0.1Nd0.1B5 (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‒xCexPr0.1Nd0.1B5 alloy electrodes are also improved by increasing Ce content.
Об авторах
J. Hu
School of Materials Science and Engineering
Email: zhy@guet.edu.cn
Китай, Guilin, 541004
H. Zhou
School of Materials Science and Engineering
Автор, ответственный за переписку.
Email: zhy@guet.edu.cn
Китай, Guilin, 541004
P. Liu
School of Materials Science and Engineering
Email: zhy@guet.edu.cn
Китай, Guilin, 541004
Q. Yao
School of Materials Science and Engineering
Email: zhy@guet.edu.cn
Китай, Guilin, 541004
J. Deng
School of Materials Science and Engineering
Email: zhy@guet.edu.cn
Китай, Guilin, 541004
Z. Wang
School of Materials Science and Engineering
Email: zhy@guet.edu.cn
Китай, Guilin, 541004