Influence of annealing treatment on the hydrogen storage properties of La(2-x)Ti(x)MgNi(9) (x=0.2, 0.3) alloys
文献类型：期刊论文
| 作者 | W. Q. Jiang ; Z. Q. Lan ; W. L. Wei ; Y. X. Liu ; J. Guo |
| 刊名 | International Journal of Hydrogen Energy
 |
| 出版日期 | 2010 |
| 卷号 | 35期号:20页码:11016-11024 |
| 关键词 | Hydrogen storage alloy Annealing Hydrogen storage property electrochemical properties electrode alloys absorption system |
| ISSN号 | 0360-3199 |
| 中文摘要 | La(2-x)Ti(x)MgNi(9) (x = 0.2, 0.3) alloys have been prepared by magnetic levitation melting under an Argon atmosphere, and the as-cast alloys were annealed at 800 degrees C, 900 degrees C for 10 h under vacuum. The effects of annealing on the hydrogen storage properties of the alloys were investigated systematically by XRD, PCT and electrochemical measurements. For the La(2-x)Ti(x)MgNi(9) (x = 0.2, 0.3) alloys, LaNi(5), LaMg(2)Ni(9) and LaNi(3) are the main phases and a Ti(2)Ni phase appears at 900 degrees C. The effective hydrogen storage capacity increases from 1.10, 1.10 wt.% (as-cast) to 1.22, 1.16 wt.% (annealed 800 degrees C) and 1.31, 1.27 wt.% (annealed 900 degrees C), respectively. The annealing not only improves the hydrogen absorption/desorption kinetics but also increases the maximum discharge capacity and enhances the cycling stability. The La(1.8)Ti(0.2)MgNi(9) alloy annealed at 900 degrees C exhibits good electrochemical properties, and the discharge capacities decrease from 366.1 mA h/g to 219.6 mA h/g after 177 charge-discharge cycles. (C) 2010 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/321006/31182]  |
| 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 | W. Q. Jiang,Z. Q. Lan,W. L. Wei,et al. Influence of annealing treatment on the hydrogen storage properties of La(2-x)Ti(x)MgNi(9) (x=0.2, 0.3) alloys[J]. International Journal of Hydrogen Energy,2010,35(20):11016-11024. |
| APA | W. Q. Jiang,Z. Q. Lan,W. L. Wei,Y. X. Liu,&J. Guo.(2010).Influence of annealing treatment on the hydrogen storage properties of La(2-x)Ti(x)MgNi(9) (x=0.2, 0.3) alloys.International Journal of Hydrogen Energy,35(20),11016-11024. |
| MLA | W. Q. Jiang,et al."Influence of annealing treatment on the hydrogen storage properties of La(2-x)Ti(x)MgNi(9) (x=0.2, 0.3) alloys".International Journal of Hydrogen Energy 35.20(2010):11016-11024. |
入库方式： OAI收割
来源：金属研究所
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