氨硼烷的制备及放氢性能研究  

Study of the Preparation of Ammonia Borane and Hydrogen Storage Properties

作　　者：马建丽[1] 张晓霞[1] 曹海燕[1] 陈东[1] 张智浩[1] 任云伟[1] 

机构地区：[1]天津城建大学材料科学与工程学院,天津300384

出　　处：《天津城建大学学报》2015年第6期423-427,共5页Journal of Tianjin Chengjian University

摘　　要：氨硼烷热分解放氢对于氨硼烷的实际应用具有重要意义,以硼氢化钠为硼源、氨基络合物Ag(NH_3)_2Cl为氨源,制备出了理论储氢量为19.6,wt%的氨硼烷AB.采用湿性浸渍法将AB负载到介孔材料MCM-41中,利用介孔的特殊孔道结构,提高储氢性能.质量比AB∶MCM-41大于2∶3时,负载AB达到饱和;经MCM-41负载后的AB放氢温度降低了约25,℃;加热后,AB发生热分解,MCM-41介孔没发生变化,从而使介孔MCM-41能循环利用.The thermal decomposition of ammonia borane is of great significance in the practice of AB. This paper reports on the synthesis of ammonia borane by using sodium borohydride and ammonia complex. We get goal of the AB loading to MCM-41 dielectric hole through wet impregnation method, which improves hydrogen storage properties of AB by using mesoporous material. When the mass ratio of AB： MCM-41 is greater than two to three, the MCM-41 loading of AB is saturated;after AB being loaded on MCM-41,the hydrogen release temperature is reduced by about 25℃; after being heated,the AB is decomposed, but the MCM-41 mesoporous don＇t change, so that the mesoporous MCM-41 can be recycled.

关 键 词：氨硼烷 湿性浸渍 MCM-41 储氢性能 

分 类 号：O627.01[理学—有机化学]