In situ multinuclear NMR spectroscopic studies of the thermal decomposition of ammonia borane in solution

被引：154

作者：

Shaw, Wendy J. ^{[1
]}

Linehan, John C. ^{[1
]}

Szymczak, Nathaniel K. ^{[2
]}

Heldebrant, David J. ^{[1
]}

Yonker, Clem ^{[1
]}

Camaioni, Donald M. ^{[1
]}

Baker, R. Tom ^{[3
]}

Autrey, Tom ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Fundamental Sci Directorate, Richland, WA 99354 USA

[2] Univ Oregon, Dept Chem, Eugene, OR 97403 USA

[3] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87507 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 39期

关键词：

amine boranes; hydrogen storage; kinetics; NMR spectroscopy; thermolysis;

D O I：

10.1002/anie.200802100

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) Looking to the future: The decomposition in solution of a potential hydrogen-storage compound, ammonia borane (AB), was investigated by in situ 11B NMR spectroscopy and ex situ 15N NMR spectroscopy. The reaction was found to be second order in AB withan activation barrier of (25 ± 2) kcal mol-1. The second-order kinetics have implications for the use of solutions containing AB in high concentrations for hydrogen storage. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：7493 / 7496

页数：4

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