作者:Iurii Dovgaliuk、Kasper T. Møller、Koen Robeyns、Véronique Louppe、Torben R. Jensen、Yaroslav Filinchuk
DOI:10.1021/acs.inorgchem.8b02630
日期:2019.4.15
Ammonia borane, NH3BH3 (AB), is very attractive for hydrogen storage; however, it dehydrogenates exothermally, producing a mixture of polymeric products with limited potential for direct rehydrogenation. Recently, it was shown that AB complexed with Al3+ in Al(BH4)3·AB endothermically dehydrogenates to a single product identified as Al(BH4)3·NHBH, with the potential for direct rehydrogenation of AB
氨硼烷NH 3 BH 3(AB)对于储氢非常有吸引力。然而,它放热地脱氢,产生了直接再氢化潜力有限的聚合物产物的混合物。最近,显示出与Al (BH 4)3 ·AB中的Al 3+络合的AB吸热脱氢为单一产物,鉴定为Al(BH 4)3 ·NHBH,具有直接AB再氢化的潜力。在这里,我们探讨了AB衍生的RNH 2 BH 3(R = -CH 3,-CH 2-)与AlX 3盐(X = BH 4 –,Cl –),旨在将系列扩展至不同的阴离子,并扩大Al(BH 4)3 ·NRBH的稳定性窗口。鉴定出三种新颖的配合物:具有与Al(BH 4)3 ·AB相似的分子结构但具有不同的脱氢性能的Al(BH 4)3 ·CH 3 NH 2 BH 3以及[Al(CH 3 NH 2) BH 3)2 Cl 2 ] [AlCl 4 ]和[Al(NH 2 CH 2 CH 2 NH 2)(BH 4)2 ] [Al(BH 4)4 ],同时成为阳离子和阴离子一部分的Al