Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi(2.6-x)Mn(x)Co(0.9) alloys
文献类型：期刊论文
| 作者 | L. Jiang ; G. X. Li ; L. Q. Xu ; W. Q. Jiang ; Z. Q. Lan ; J. Guo |
| 刊名 | International Journal of Hydrogen Energy
 |
| 出版日期 | 2010 |
| 卷号 | 35期号:1页码:204-209 |
| 关键词 | Hydrogen storage alloy Hydrogen storage property Electrochemical characteristic electrode alloys absorbing alloys metal-hydrides batteries behavior pr la |
| ISSN号 | 0360-3199 |
| 中文摘要 | ReNi(2.6-x)Mn(x)Co(0.9) (x = 0.0, 0.225, 0.45, 0.675, 0.90) alloys were prepared by induction melting. The effects of partially substituting Mn for Ni on the phase structure and electrochemical properties of the alloys were investigated systematically. In the alloys, (La, Ce)(2)Ni(7) phase with a Ce(2)Ni(7)-type structure, (Pr, Ce)Co(3) phase with a PuNi(3)-type structure, and (La, Pr)Ni(5) phase with a CaCu(5)-type structure were the main phases. The (La,Pr)Ni phase appeared when x increased to 0.45, and the (La, Pr)Ni(5) phase disappeared with further increasing x (x > 0.45). The hydrogen-storage capacity of the ReNi(2.6-x)Mn(x)Co(0.9) (x = 0.0, 0.225, 0.45, 0.675, 0.90) alloys initially increased and reached a maximum when Mn content was x = OAS, and then decreased with further increasing Mn content. The ReNi(2.6-x)Mn(x)Co(0.9) (x = 0.0, 0.225, 0.45, 0.675, 0.90) alloy exhibited a hydrogen- storage capacity of 0.81, 0.98, 1.04, 0.83 and 0.53 wt.%, respectively. Electrochemical studies showed that the maximum discharge capacity of the alloy electrodes initially increased from 205 mAh/g (x 0.0) to 352 mAh/g (x = 0.45) and then decreased to 307 mAh/g (x = 90). The hydrogen absorption rate first increased and then decreased with addition of Mn element. The ReNi(2.15)Mn(0.45)Co(0.9) alloy showed faster hydrogen absorption kinetics than that of the other alloys. The presence of Mn element slowed hydrogen desorption kinetics. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31177]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. Jiang,G. X. Li,L. Q. Xu,et al. Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi(2.6-x)Mn(x)Co(0.9) alloys[J]. International Journal of Hydrogen Energy,2010,35(1):204-209. |
| APA | L. Jiang,G. X. Li,L. Q. Xu,W. Q. Jiang,Z. Q. Lan,&J. Guo.(2010).Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi(2.6-x)Mn(x)Co(0.9) alloys.International Journal of Hydrogen Energy,35(1),204-209. |
| MLA | L. Jiang,et al."Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi(2.6-x)Mn(x)Co(0.9) alloys".International Journal of Hydrogen Energy 35.1(2010):204-209. |
入库方式： OAI收割
来源：金属研究所
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