Ammonia-Borane and Related Compounds as Dihydrogen Sources

被引:1083
作者
Staubitz, Anne [1 ]
Robertson, Alasdair P. M. [2 ]
Manners, Ian [2 ]
机构
[1] Univ Kiel, Otto Diels Inst Organ Chem, D-24118 Kiel, Germany
[2] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England
关键词
CHEMICAL HYDROGEN STORAGE; HIGHLY-ACTIVE CATALYSTS; FRUSTRATED LEWIS PAIRS; MAIN-GROUP ELEMENTS; COBALT(0) NANOCLUSTERS CATALYST; CERAMIC CONVERSION REACTIONS; YIELD POLYMERIC PRECURSOR; CORE-SHELL NANOPARTICLES; METAL HYDRIDE MATERIALS; INITIO DIRECT DYNAMICS;
D O I
10.1021/cr100088b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Studies conducted in the subject of ammonia-borane and related compounds as dihydrogen sources are presented. The phase transitions of ammonia-borane studied at increased pressures and at various temperatures by powder X-ray diffraction show change of its crystal lattice. The inelastic incoherent neutron scattering (IINS) spectra of ammonia-borane shows an improved assignment of low frequency torsional motions. Studies have also found that the head to tail dimer of ammonia-borane exhibit dihydrogen bonds. The nonvolatile white residue of the first decomposition step of ammonia-borane is described as polyaminoborane (PAB) of the composition BNH4 and is likely to contain borazinyl residues, cyclic, and cross-linked structures. Additives such as lithium imide and lithium nitride used for the release of hydrogen from ammonia-borane in solution showed release of ammonia gas.
引用
收藏
页码:4079 / 4124
页数:46
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