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作者
作者:Zhang, C (Zhang, Chi)[1 ]; Wang, H (Wang, Hui)[1 ]; Ouyang, LZ (Ouyang, Liu-Zhang)[1 ]; Lin, HJ (Lin, Huai-Jun)[1 ]; Zhu, M (Zhu, Min)[1 ]
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文献类型:Article
摘要
The alloying element component is very crucial in improving the hydrogen storage performance of amorphous alloys. In this work, quaternary amorphous Mg70-xCe10Ni20Cux (x = 3, 7.5, 10) alloys were prepared by melt-spinning and the effect of Cu on hydrogenation and dehydrogenation were investigated in comparison with the Mg70-xCe10Ni20 amorphous alloys. The initial hydrogenation kinetics of amorphous Mg70-xCe10Ni20Cux (x = 0, 3, 7.5, 10) was improved with the increase of Cu content according to the kinetics measured at a temperature below crystallization temperature. As hydrogen is absorbed, an amorphous-amorphous transition occurred, and relatively high Cu content would lead to phase separation in the hydrogenation process. Amorphous phase have much higher crystallization temperature after it absorbs hydrogen and the addition of Cu could increase the crystallization activation energy of amorphous hydrides. In addition, the increase of Cu content could reduce the dehydrogenation temperature of amorphous hydrides, which gives a significant indication for future improving research of the hydrogen desorption performance of Mg based amorphous hydrides.
关键词
作者关键词:Hydrogen storage; Mg-based amorphous alloy; Hydrogenation kinetic; Dehydrogenation temperature
作者信息
通讯作者地址:Zhu, M (通讯作者)
 | South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China. |
地址:
| [ 1 ] South China Univ Technol, Key Lab Adv Energy Storage Mat Guangdong Prov, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China |
电子邮件地址:memzhu@scut.edu.cn
出版商
类别分类
研究方向:Materials Science; Science & Technology - Other Topics
Web of Science 类别:Materials Science, Multidisciplinary; Multidisciplinary Sciences