镍对镁碳复合储氢材料性能的影响  

Effect of Ni on Properties of Mg/C Composites for Hydrogen Storage

作　　者：吴峻青[1] 周仕学[1] 王振华[1] 吕英海[1] 

机构地区：[1]山东科技大学化学与环境工程学院,山东青岛266510

出　　处：《矿冶工程》2008年第4期105-107,共3页Mining and Metallurgical Engineering

基　　金：国家自然科学基金项目(50574054);教育部留学回国基金项目(2005-383)

摘　　要：在金属Mg粉中添加经碳化处理的无烟煤,于H2气氛中用反应球磨法制备Mg/C复合储氢材料。研究了添加金属Ni对Mg/C复合储氢材料的粒度、放氢温度和放氢量的影响。结果表明,Ni在球磨过程中对Mg和C有助磨作用,还可降低储氢材料的放氢温度,增大放氢量。含10%Ni储氢材料与无Ni储氢材料相比,初始放氢温度降低70℃,高峰放氢温度降低46℃。Mg/C composites for hydrogen storage were prepared in hydrogen atmosphere by reaction milling of magnesium powders into which carbonized anthracite were added. The effect of nickel additive on the particle size, dehydriding temperature and dehydriding capacity of the hydrogen storage composites was studied. The results showed that the nickel additive played the role of milling aid for magnesium and carbon particles. Moreover, nickel lowered the dehydriding temperature and increased the dehydriding capacity of the composites. The initial and peak dehydriding temperatures of the composites with 10% nickel lowered by 70℃ and 46 ℃, respectively, compared to that of the composites without nickel additive.

关 键 词：储氢材料 反应球磨 镍 放氢温度 

分 类 号：TG139[一般工业技术—材料科学与工程]