Effect of Hydrogen Back Pressure on Dehydrogenation Behavior of LiBH4-Based Reactive Hydride Composites

被引：73

作者：

Shim, Jae-Hyeok ^{[1
]}

Lim, Jae-Hag ^{[1
]}

Rather, Sami-ullah ^{[1
]}

Lee, Young-Su ^{[1
]}

Reed, Daniel ^{[2
]}

Kim, Yoonyoung ^{[1
]}

Book, David ^{[2
]}

Cho, Young Whan ^{[1
]}

机构：

[1] Korea Inst Sci & Technol, Mat Sci & Technol Res Div, Seoul 136791, South Korea

[2] Univ Birmingham, Sch Met & Mat, Birmingham B15 2TT, W Midlands, England

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2010年 / 1卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

STORAGE; LIBH4;

D O I：

10.1021/jz900012n

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Hydrogen back pressure remarkably promotes the formation of metal boride during, the dehydrogenation of 4LiBH(4) + YH3, 6LiBH(4) + CeH2 and 6LiBH(4) + CaH2 composites, which seems to be a general phenomenon in LiBH4-based reactive, hydride composites that enables mutual destabilization,between LiBH4 and metal,hydride. The formation of metal boride plays a crucial role in the reversible hydrogen storage properties of these composites. The dependence of the dehydrogenation behavior on hydrogen back pressure might be associated with the microstructural evolution of the dehydrogenation products formed by a solid liquid reaction.

引用

页码：59 / 63

页数：5

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