摘要
采用x射线衍射（XRD）、差热分析（TG，DSC）等方法研究了Mg和预处理Al粉（主要成分为A1和Ni）在高纯氢气气氛下的反应合成过程，分析了球磨反应合成对反应产物的相组成及放氢性能的影响。结果表明：Mg粉和预处理铝粉在氢气气氛作用下可直接氢化生成纳米尺寸的MgH2、Mg（AlH4）2等镁基复相储氢合金，该合金在较低的温度下即可放氢，并探讨了放氢机理。
The reactive synthsis process of Mg and pretreated A1 powders（mainly composed of A1 and Ni） in highly pure hydrogen atmosphere（99.999%） was investigated by means of X-ray diffraction （XRD）, thermogravimetric and differential scanning calorimetry （TG-DSC）. The effect of reactive ball milling synthesis on the products and the desorbing behaviors were analyzed. Nanosize Mg-based hydrogen storage composite （MgH2 and Mg（A1H4）2） could be directly synthesized by Mg and pretreated A1 powders, which have desorption mechanism was also discussed. lower hydrogen desorption temperature. The hydrogen
出处
《功能材料》
EI
CAS
CSCD
北大核心
2007年第A04期1625-1627,共3页
Journal of Functional Materials
