Hydrolysis reaction of ball-milled Mg-metal chlorides composite for hydrogen generation for fuel cells

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• 作者：Shuang Wang^a ; ^c ; Li-Xian Sun^a ; ^d ; ^{lxsun@dicp.ac.cn} ; Fen Xu^b ; ^{xufen@lnnu.edu.cn} ; Cheng-Li Jiao^a ; ^c ; Jian Zhang^a ; Huai-Ying Zhou^d ; Feng-Lei Huang^e
• 关键词：Hydrogen generation ; Mg-based-material ; Ball milling ; Hydrolysis reaction ; Kinetics
• 刊名：International Journal of Hydrogen Energy
• 出版年：2012
• 期刊代码：42_03603199
• 类别：ch
• 出版时间：April, 2012
• 卷：37
• 期：8
• 页码：6771-6775
• 文件大小：852 K

摘要

In this paper, the hydrolysis properties for hydrogen generation by Mg-metal chlorides composites in pure water are investigated. The composites were prepared by high energy ball milling. It is found that the Mg-metal chlorides composites are very promising for hydrogen generation by hydrolysis reaction. The micro-galvanic cell formed by Mg and the other metal which produced by replacement reaction occurred during the ball-milling process is very effective for improving the hydrolysis reactivity. Based on the investigations of different kinds of chlorides additives, it is found that the Mg-10聽wt%FeCl₃ composite ball-milled for 30聽min has the best hydrolysis properties with an initial hydrogen generation rate of 1479.1聽ml*g^鈭?聽min^鈭? and a theoretical hydrogen production yield of 98%in 2聽min.