湿法化学法合成三氢化铝研究概述  

Overview of research on synthesis of aluminum trihydride by wet chemical method

作　　者：刘浏[1,2] 胥师铭 顾雪萍 冯连芳[1] Liu Liu;Xu Shiming;Gu Xueping;Feng Lianfang(College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310058;Institute of Special Polymers,Quzhou Research Institute,Zhejiang University,Quzhou 324000)

机构地区：[1]浙江大学化学工程与生物工程学院,杭州310058 [2]浙江大学衢州研究院特种聚合物研究所,衢州324000

出　　处：《化工新型材料》2024年第S02期181-185,190,共6页New Chemical Materials

摘　　要：三氢化铝作为一种储氢材料具有十分优异的性能,例如:储氢密度大、放氢温度低、燃烧后产物绿色无污染等诸多优点,广泛应用于航空航天以及军工领域。综述了采用“湿法”合成时产生的中间体三氢化铝缔合物以及产品α-AlH_(3)的物理以及化学性质对制备过程的影响。α-AlH_(3)的常规“湿法”合成需要分两步合成,第一步缔合物制备,介绍了几种不同醚合物的制备方法;第二步脱溶剂化转晶,脱溶剂化转晶主要分为固相甲苯法、液体甲苯法、真空法,分析了各自存在的优缺点。最后提出了一些可以改进的方向。As a hydrogen storage material,aluminum hydride has excellent properties,such as high hydrogen storage density,low hydrogen discharge temperature,and pollution-free after combustion.It is widely used in the fields of aerospace and military.In this paper,the effects of the physical and chemical properties of the intermediate aluminum hydride-etherate and productα-AlH_(3),produced during the“wet method”,on the preparation process were reviewed.The conventional“wet method”synthesis ofα-AlH_(3)required two steps.The first step was the preparation of etherate,and several preparation methods of different etherates were introduced.The second step was desolventization and crystallization,which could be divided into solid phase toluene method,liquid toluene method and vacuum method.Finally,some directions for improvement were put forward.

关 键 词：α -AlH_(3) 氢化物 脱醚 转晶 

分 类 号：O611.4[理学—无机化学]