title: Synthesis of Ammonia Borane Nanoparticles and the Diammoniate of Diborane by Direct Combination of Diborane and Ammonia.
abstract: Pure nanoparticle ammonia borane (NH3 BH3 , AB) was first prepared through a solvent-free, ambient-temperature gas-phase combination of B2 H6 with NH3 . The prepared AB nanoparticle exhibits improved dehydrogenation behavior giving 13.6 wt. % H2 at the temperature range of 80-175 °C without severe foaming. Ammonia diborane (NH3 BH2 (μ-H)BH3 , AaDB) is proposed as the intermediate in the reaction of B2 H6 with NH3 based on theoretical studies. This method can also be used to prepare pure diammoniate of diborane ([H2 B(NH3 )2 ][BH4 ], DADB) by adjusting the ratio and concentration of B2 H6 to NH3 .
authors.affiliation: Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Yuanzhou
authors.initials: Y
authors.lastname: Song
authors.affiliation: School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China.
authors.forename: Nana
authors.initials: N
authors.lastname: Ma
authors.affiliation: Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China.|Center of Special Materials and Technology, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Ma
authors.affiliation: Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Fang
authors.initials: F
authors.lastname: Fang
authors.affiliation: School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China. xnchen@htu.edu.cn.
authors.forename: Xuenian
authors.initials: X
authors.lastname: Chen
authors.affiliation: Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China. gyh@fudan.edu.cn.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Guo
keywords: ammonia borane; borane chemistry; diammoniate of diborane; hydrogen storage; nanotechnology