Amineborane-based chemical hydrogen storage: Enhanced ammonia borane dehydrogenation in ionic liquids
Amineborane-based chemical hydrogen storage: Enhanced ammonia borane dehydrogenation in ionic liquids
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DOI：
10.1021/ja062085v
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发表时间：
2006-06-21
影响因子：
15
通讯作者：
Sneddon, Larry G.
中科院分区：
文献类型：
--
作者：
Bluhm, Martin E.;Bradley, Mark G.;Sneddon, Larry G.
离子液体为胺硼基化学储氢系统提供了有利的介质。在85℃、90℃和95℃时，与类似的固态反应相比，在1-丁基-3-甲基咪唑氯中进行的氨硼烷脱氢反应释放氢的程度和速率都显著增加。核磁共振研究结合DFT/GIAO化学位移计算表明，聚氨基硼烷和二硼烷二铵酸盐[(NH3)2BH2+]BH4-都是反应的初始产物。
Ionic liquids are shown to provide advantageous media for amineborane-based chemical hydrogen storage systems. Both the extent and rate of hydrogen release from ammonia borane dehydrogenation are significantly increased at 85, 90, and 95 °C when the reactions are carried out in 1-butyl-3-methylimidazolium chloride compared to analogous solid-state reactions. NMR studies in conjunction with DFT/GIAO chemical shift calculations indicate that both polyaminoborane and the diammoniate of diborane, [(NH3)2BH2+]BH4-, are initial products in the reactions.