Synthesis of ammonia borane for hydrogen storage applications

被引：95

作者：

Heldebrant, David J. ^{[1
]}

Karkamkar, Abhi ^{[1
]}

Linehan, John C. ^{[1
]}

Autrey, Tom ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2008年 / 1卷 / 01期

关键词：

D O I：

10.1039/b808865a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new synthetic procedure to make the condensed phase hydrogen storage material, ammonia borane (NH(3)BH(3), abbreviated as AB), is described and compared with previous literature procedures. Ammonia borane with a gravimetric density ca. 194 gm H(2) kg(-1) and a volumetric density ca. 146 H(2) litre(-1), is a promising chemical hydrogen storage material for fuel cell powered applications. The work shows that ammonium borohydride, NH(4)BH(4), formed in situ by the metathesis of NH(4)X and MBH(4) salts (M = Na, Li; X = Cl, F) in liquid NH(3), can be induced to decompose in an organic ether to yield AB in near quantitative yield. The purity of the AB prepared by this one-pot synthetic strategy is sufficient to meet the thermal stability requirements for on-board hydrogen storage.

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页码：156 / 160

页数：5

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