高纯α-AlH_3的合成及表征  

Synthesis and Characterization of α-AlH_3 with High Purity

作　　者：张永岗[1] 开永茂[1] 汪伟[2] 邱少君[2] 李鸿波[1] 

机构地区：[1]西南科技大学材料科学与工程学院,绵阳621010 [2]西安近代化学研究所,西安710065

出　　处：《武汉理工大学学报》2012年第11期10-13,共4页Journal of Wuhan University of Technology

基　　金：国家重大科技专项和碳纳米材料四川省青年科技创新研究团队专项(2011JTD0017)

摘　　要：为制备高纯α-AlH3,将LiAlH4与AlCl3在乙醚溶液中反应,制备并分离出固体AlH3乙醚络合物,其在甲苯中90℃下脱醚2h可制得纯度为99.5%的α-AlH3,产率96.4%。对高纯α-AlH3进行了XRD、红外、元素分析、TG/DSC、SEM表征,同时考察了α-AlH3的结晶条件和稳定性。结果表明产品结晶性好、纯度高、性质稳定,合成方法具有操作简便、收率高、重现性好等优点。In order to obtain α-A1Ha with high purity, solid A1H3-etherate was synthesized and separated from the re action of LiA1H4 and A1Cla in diethyl ether, then α-A1H3 with purity of 99. 5 % was prepared via desolvation of the solid A1H3-etherate in toluene at 90 ℃ for 2 hours in the yield of 96. 4 %. The product was characterized by XRD, IR, ele mental analysis, TG/DSC, SEM, meanwhile the crystallization and stability of α-A1Ha was also studied. The results in dicate that the product has good crystallization, high purity and stability, the synthetic method has the advantages of sim ple operation, high yield and good reproducibility.

关 键 词：高纯 Α-ALH3 合成 表征 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]