Influence of annealing treatment on the hydrogen storage properties of La2-xTixMgNi9 (x=0.2, 0.3) alloys
文献类型：期刊论文
| 作者 | Jiang, Weiqing1; Lan, Zhiqiang1; Wei Wenlou1; Liu Yixin1; Guo, Jin1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 35期号:20页码:11016-11024 |
| 关键词 | Hydrogen storage alloy Annealing Hydrogen storage property |
| ISSN号 | 0360-3199 |
| DOI | 10.1016/j.ijhydene.2010.07.083 |
| 通讯作者 | Guo, Jin(guojin@gxu.edu.cn) |
| 英文摘要 | La2-xTixMgNi9 (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 La2-xTixMgNi9 (x = 0.2, 0.3) alloys, LaNi5, LaMg2Ni9 and LaNi3 are the main phases and a Ti2Ni 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 La1.8Ti0.2MgNi9 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. |
| 资助项目 | National Natural Science Foundation of China[50861003] ; Natural Science Foundation of Guangxi[2010GXNSFD013004] ; Foundation of Key Laboratory of National Education Ministry for Nonferrous Metals and Materials Processing Technology[GXKFJ09-15] ; Foundation of Guangxi Department of Education[200911MS07] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000284443200022 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Guangxi ; Foundation of Key Laboratory of National Education Ministry for Nonferrous Metals and Materials Processing Technology ; Foundation of Guangxi Department of Education |
| 源URL | [http://ir.imr.ac.cn/handle/321006/101730]  |
| 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, Key Lab, Natl Educ Minist Nonferrous Met & Mat Proc Techno, Nanning 530004, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Weiqing,Lan, Zhiqiang,Wei Wenlou,et al. Influence of annealing treatment on the hydrogen storage properties of La2-xTixMgNi9 (x=0.2, 0.3) alloys[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2010,35(20):11016-11024. |
| APA | Jiang, Weiqing,Lan, Zhiqiang,Wei Wenlou,Liu Yixin,&Guo, Jin.(2010).Influence of annealing treatment on the hydrogen storage properties of La2-xTixMgNi9 (x=0.2, 0.3) alloys.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,35(20),11016-11024. |
| MLA | Jiang, Weiqing,et al."Influence of annealing treatment on the hydrogen storage properties of La2-xTixMgNi9 (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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