摘要
在Mg粉中添加微晶碳及少量Ni和Al，用机械力化学法氢气反应球磨制备储氢材料。球磨2～3h即可使Mg完成氢化，Ni和Al的添加可提高储氢密度，降低初始放氢温度和放氢高峰温度，加快放氢速度。储氢材料85Mg10C4Ni1Al的粒度约为100～300nm，其储氢密度达6．0％，初始放氢温度仅220℃，与传统Mg基储氢材料相比其储氢性能有较大改善。
A hydrogen-storage material is prepared from magnesium and crystallite carbon and a small amount of Ni and Al by reaction ball milling under hydrogen atmosphere. The hydriding can be completed within 2 to 3 hours of ball milling. The hydrogen capacity can be increased, the initial dehydriding temperature and maximum dehydriding temperature be decreased, and the dehydriding rate can be increased by the addition of Ni and Al. For hydrogen-storage material 85Mg10CANi1Al, the particle size is about 100 to 300 nm,its hydrogen-storage capacity is up to 6.0 wt. % ,and its initial dehydriding temperature is only 220℃. Its hydrogen-storage properties are much more excellent than traditional Mg-based materials.
出处
《现代化工》
EI
CAS
CSCD
北大核心
2007年第9期42-43,45,共3页
Modern Chemical Industry
基金
国家自然科学基金项目(50574054)
教育部留学回国人员科研基金项目(2005-383)
关键词
储氢材料
镁
微晶碳
催化
hydrogen storage material
magnesium
crystallite carbon
catalysis
