Influence of Ball-milling with Ni Powder on the Phase Structure and Electrochemical Hydrogen Storage Properties of Mg17Al12 Alloy

摘要：

The phase structures and electrochemical properties of the as-cast Mg17Al12 alloy and ball-milled Mg17Al12 + x％ Ni composites (x =50, 100, 150, 200) have been investigated. The results show that the phase structures and discharge capacities of the Mg17Al12-Ni composites depend greatly on the amount of Ni powder. The more Ni powder introduced, the more advantageous for the formation of amorphous structure, and the larger discharge capacity obtained. After ball-milling for 120 h, the Mg17Al12 + 200％ Ni composite exhibits a high discharge capacity of 658.2 mAh·g-1 (barring the weight of Ni powder) at 303 K.

关键词： hydrogen storage alloy mg17Al12 ball-milling electrochemical properties phase structure

作者: XIAO Xue-zhang GE Hong-wei CHEN Li-xin WANG Xin-hua LI Shou-quan WANG Li CHEN Chang-pin

作者单位: Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China

会议类型: 国际会议

会议名称: 2006中日稻米品质测控及美味技术学术研讨会

会议地点: 北京

会议语种:英文

页码: 86-87,90

在线出版日期: 2006-08-03（万方平台首次上网日期，不代表论文的发表时间）