通过乙硼烷与氨直接化合合成氨硼烷纳米颗粒和乙硼烷二氨合物
Synthesis of Ammonia Borane Nanoparticles and the Diammoniate of Diborane by Direct Combination of Diborane and Ammonia.
作者信息
Song Yuanzhou, Ma Nana, Ma Xiaohua, Fang Fang, Chen Xuenian, Guo Yanhui
机构信息
Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China.
School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, P. R. China.
出版信息
Chemistry. 2016 Apr 25;22(18):6228-33. doi: 10.1002/chem.201600367. Epub 2016 Mar 21.
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 .
纯纳米氨硼烷（NH₃BH₃，AB）最初是通过B₂H₆与NH₃在无溶剂、室温下的气相组合制备的。所制备的AB纳米颗粒表现出改善的脱氢行为，在80-175°C的温度范围内可释放13.6 wt.%的H₂，且不会产生严重的发泡现象。基于理论研究，氨二硼烷（NH₃BH₂(μ-H)BH₃，AaDB）被认为是B₂H₆与NH₃反应的中间体。通过调整B₂H₆与NH₃的比例和浓度，该方法还可用于制备纯二硼烷二铵盐（[H₂B(NH₃)₂][BH₄]，DADB）。
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