标题
作者
作者:Li, ZM (Li, Ziming)[1 ]; Wang, H (Wang, Hui)[1,2 ]; Ouyang, LZ (Ouyang, Liuzhang)[1,2 ]; Liu, JW (Liu, Jiangwen)[1,2 ]; Zhu, M (Zhu, Min)[1,2 ]
期刊信息
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文献类型:Article
摘要
To restrain the irreversible disproportionating reaction of YFe2 phase in the hydrogenation process, the structure of YFe2 was modified by partly substituting Fe with Al. And then, the hydrogen storage properties of YFe2-xAlx (x = 0.3, 0.5, 0.7) alloys were systematically investigated. It was found that the C15 Laves phase structure of those three Y-Fe-Al alloys kept stable at different states of as-annealed, hydrogenated and dehydrogenated, but their lattice constants vary with the Al and hydrogen contents. The YFe1.7Al0.3 alloy shows maximum reversible hydrogen storage capacity of 1.38 wt%, which is lower than its initial hydrogen absorption capacity of 1.56 wt%. All the three Y-Fe-Al alloys show fast hydrogenation rate at relative low temperature of 100 degrees C, however, their dehydrogenation properties are still limited due to their rather low desorption equilibrium pressure. The present finding provides a possibility of developing new types of rare earth-transition metal alloys for hydrogen storage. (C) 2016 Elsevier B.V. All rights reserved.
关键词
作者关键词:Hydrogen storage alloys; YFe2; Alloying substitution; Laves phase
作者信息
通讯作者地址:Zhu, M (通讯作者)
 | South China Univ Technol, Sch Mat Sci & Engn, Key Lab Adv Energy Storage Mat Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China. |
| South China Univ Technol, China Australia Joint Lab Energy & Environm Mat, Guangzhou 510641, Guangdong, Peoples R China. |
地址:
电子邮件地址:memzhu@scut.edu.cn
出版商
类别分类
研究方向:Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
Web of Science 类别:Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering