球磨Mg50Ni50+x wt%Ti(x=0,1,3,5)合金的贮氢性能

金属功能材料, 2011, 18(2): 15-19.

球磨Mg50Ni50+x wt%Ti(x=0,1,3,5)合金的贮氢性能

王智锋 ^1, , 赵栋梁 ^2, , 侯忠辉 ^3, , 雍辉 ^4, , 张羊换 ^5, , 王新林 ^6,

1.内蒙古科技大学,包头,014010

2.钢铁研究总院,北京,100081

3.内蒙古科技大学,包头,014010

4.内蒙古科技大学,包头,014010

5.钢铁研究总院,北京,100081;内蒙古科技大学,包头,014010

6.钢铁研究总院,北京,100081

基金项目: 内蒙古自然科学基金重点项目(200711020703) 863项目(2007AA03Z227) 内蒙古高等教育科学研究项目(NJzy08071) 国家自然科学基金(50871050和50701011)

关键词：镁基贮氢合金 , 机械球磨 , 微观结构 , 贮氢性能

Hydrogen Storage Characteristics of Ball-Milling Mg50 Ni50+xwt %Ti (x=0,1,3,5) Alloys

为了改善镁基贮氢合金的贮氢性能,在合金中加入不同量的Ti作为催化剂,用机械球磨法制备出Mg50Ni50+x wt%Ti(x=0,1,3,5)合金粉末.用XRD、SEM分析了合金的微观结构,研究了Ti含量的变化对合金气态吸氢动力学及电化学性能的影响.结果表明:随着Ti含量的增加,合金相中出现了TiNi2相,TiNi2相不利于气态吸氢及电化学贮氢性能,但对合金的容量保持率及高倍率放电性能有很好的促进作用.

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球磨Mg50Ni50+x wt%Ti(x=0,1,3,5)合金的贮氢性能

Hydrogen Storage Characteristics of Ball-Milling Mg50 Ni50+xwt %Ti (x=0,1,3,5) Alloys

参考文献