Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi2.6-xMnxCo0.9 alloys
文献类型：期刊论文
| 作者 | Jiang, Long1,2; Li, Guangxu1; Xu, Liqin1; Jiang, Weiqing1; Lan, Zhiqiang1; Guo, Jin1,3 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2010 |
| 卷号 | 35期号:1页码:204-209 |
| ISSN号 | 0360-3199 |
| 关键词 | Hydrogen storage alloy Hydrogen storage property Electrochemical characteristic |
| DOI | 10.1016/j.ijhydene.2009.10.041 |
| 通讯作者 | Guo, Jin(guojin@gxu.edu.cn) |
| 英文摘要 | ReNi2.6-xMnxCo0.9 (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 Ce2Ni7-type structure, (Pr, Ce)Co-3 phase with a PuNi3-type structure, and (La, Pr)Ni-5 phase with a CaCu5-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 ReNi2.6-xMnxCo0.9 (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 ReNi2.6-xMnxCo0.9 (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 ReNi2.15Mn0.45Co0.9 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. |
| 资助项目 | National Natural Science Foundation of China[50561002] ; National Natural Science Foundation of China[50861003] ; Natural Science Foundation of Guangxi[0728028] ; Guangxi University Key Program for Science and Technology Research[2004ZD04] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| WOS记录号 | WOS:000274079200024 |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Guangxi ; Guangxi University Key Program for Science and Technology Research |
| 源URL | [http://ir.imr.ac.cn/handle/321006/101935]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Guo, Jin |
| 作者单位 | 1.Guangxi Univ, Coll Phys Sci & Technol, Nanning 530004, Peoples R China 2.Yangtze Univ, Sch Phys Sci & Technol, Jinzhou 434023, Peoples R China 3.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Long,Li, Guangxu,Xu, Liqin,et al. Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi2.6-xMnxCo0.9 alloys[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2010,35(1):204-209. |
| APA | Jiang, Long,Li, Guangxu,Xu, Liqin,Jiang, Weiqing,Lan, Zhiqiang,&Guo, Jin.(2010).Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi2.6-xMnxCo0.9 alloys.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,35(1),204-209. |
| MLA | Jiang, Long,et al."Effect of substituting Mn for Ni on the hydrogen storage and electrochemical properties of ReNi2.6-xMnxCo0.9 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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