Department of Chemistry and Center for Catalysis Research and Innovation, University of Ottawa, Ottawa, ON, K1N 6N5 Canada.
Chem Commun (Camb). 2011 Mar 14;47(10):2922-4. doi: 10.1039/c0cc03585h. Epub 2011 Jan 24.
Mixtures containing ammonia-borane and sec-butylamine-borane remain liquid throughout the hydrogen release process that affords tri(N-sec-butyl)borazine and polyborazylene. Concentrated solutions with metal catalysts afford >5 wt% H(2) in 1 h at 80 °C and addition of (EMIM)EtSO(4) ionic liquid co-solvent eliminates competing formation of insoluble linear poly(aminoborane) (EMIM = 1-ethyl-3-methyl-imidazolium).
含有氨硼烷和仲丁基胺硼烷的混合物在整个氢气释放过程中保持液态，生成三（N-仲丁基）硼嗪和聚硼氮烷。在 80°C 下，用金属催化剂浓缩溶液 1 小时可获得超过 5wt%的氢气，添加（EMIM）EtSO（4）离子液体共溶剂可消除不溶性线性聚（氨基硼烷）（EMIM = 1-乙基-3-甲基-咪唑鎓）的竞争形成。
