孔性介质负载下的络合氢化物及其储氢特性  

Hydrogen Storage Properties of Complex Hydrides Loaded in Porous Materials

作　　者：李永涛[1] 周广有[1] 方方[1] 陈国荣[1] 桑革[2] 孙大林[1] 

机构地区：[1]复旦大学材料科学系,上海200433 [2]中国工程物理研究院,绵阳621900

出　　处：《化学进展》2010年第1期241-247,共7页Progress in Chemistry

基　　金：国家自然科学基金项目(No.10776004;20833009)资助

摘　　要：络合氢化物具有较高的重量储氢密度,已成为国内外研究的热点。孔性介质由于高比表面积、孔径均匀可调以及良好热稳定性而备受关注。研究表明,实现孔性介质负载的络合氢化物可有效地改善其储氢性能。本文简述了孔性介质的结构特征和物化特性,着重阐述了孔性介质负载催化络合氢化物的制备方法、脱/加氢性能的影响及其催化机理的研究进展,并指出了需要研究的科学问题。Complex hydrides have been extensively studied because of their higher gravimetric hydrogen density than that of conventional metal hydrides.It has been found that an improved hydrogen storage property is obtained by loading complex hydrides into porous materials which have attracted much attention owing to their high specific surface area,uniform and controllable pore diameter and good thermostability.This paper begins with a brief introduction to the structural characteristics and physical and chemical properties of porous materials,and then the advances in the study of complex hydrides incorporated into porous materials,including preparation methods,catalytic effect and mechanism on the dehydrogenation/rehydrogenation performance,are outlined.The key issues needed to be solved are discussed.

关 键 词：孔性介质 络合氢化物 纳米尺度化 脱/加氢性能 

分 类 号：TK91[动力工程及工程热物理] TQ116.2[化学工程—无机化工]