催化剂对镁基储氢材料储氢性能影响的研究进展  

Research Progress in the Influence of Catalysts on Hydrogen Storage Property of Magnesium-based Hydrogen Storage Materials

作　　者：蔡浩[1] 顾昊[1] 朱云峰[1] 李李泉[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009

出　　处：《材料导报》2008年第11期115-119,共5页Materials Reports

基　　金：国家高技术研究发展计划(863计划2007AA05Z110);江苏省科技厅高技术研究(工业)重大项目(BG2007052)

摘　　要：综述了近年来添加过渡族金属、金属氧化物和金属卤化物催化剂对镁基储氢材料性能影响的研究进展,总结了催化剂催化效果的影响因素。比较发现,多价态过渡族金属卤化物对镁基储氢材料具有最好的催化作用。催化剂作用机理包括:为氢的扩散提供通道;为氢的吸附、离解提供活性位置;起到"氢泵"的作用;与Mg-H键发生电子交互作用。Research progress in the influence of the catalysts of transition metal, metal oxides and metal halides on the hydrogen storage performance of Mg-based hydrogen storage materials is reviewed in this paper. Influence factors of catalytic effect of catalysts are summarized. By comparison, muhivalent transition metal halides have the best catalytic activity to the Mg-based hydrogen storage materials. Mechanism of catalysts includes; offering pathway for hydrogen diffusion, supplying active site for hydrogen adsorption and decomposition, acting as ＂hydrogen pump＂ and electronic interaction with Mg-H bonds.

关 键 词：镁基储氢材料 过渡族金属 金属氧化物 金属卤化物 催化剂 

分 类 号：TQ050.4[化学工程] O643.36[理学—物理化学]