Direct preparation of LiBH4 from pre-treated LiH plus B mixture at high pressure

被引：15

作者：

Chen, Rugan ^{[1
]}

Wang, Xinhua ^{[1
]}

Xu, Lou ^{[1
]}

Li, Hui ^{[1
]}

Chen, Changpin ^{[1
]}

Chen, Lixin ^{[1
]}

Pan, Hongge ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Hydrides; LiBH4; Hydrogen storage materials; Complex hydrides; HYDROGEN STORAGE MATERIALS; MECHANICAL ATTRITION; ALLOYS; TI;

D O I：

10.1016/j.jallcom.2010.09.215

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：

LiBH4 was prepared from LiH + B mixture at 300-500 degrees C with a hydrogen pressure of 35 MPa. The LiH + B mixture was pretreated by ball milling under 10 MPa hydrogen pressure for 10h. The results showed that ball-milling treatment is favorable for the formation of LiBH4, which could reduce the reaction temperature for about 200 degrees C. A small quantity of LiBH4 could be found in the pre-treated sample. The formation of LiBH4 from LiH + B mixture is a kinetically hindered progress and a diffusion-control reaction. LiBH4 formed at 400 degrees C could release 6.59 wt.% H-2 when it was heated from room temperature to 500 degrees C. The yield of LiBH4 is about 59.4%. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：3481 / 3485

页数：5

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