LiBH4 nanoparticles supported by disordered mesoporous carbon:: Hydrogen storage performances and destabilization mechanisms

被引：125

作者：

Zhang, Yao ^{[1
]}

Zhang, Wan-Sheng

Wang, Ai-Qin

Sun, Li-Xian

Fan, Mei-Qiang

Chu, Hai-Liang

Sun, Jun-Cai

Zhang, Tao

机构：

[1] Chinese Acad Sci, Dalian Inst Chem Phys, Mat & Thermochem Lab, Dalian 116023, Peoples R China

[2] Dalian Maritime Univ, Electromech & Mat Engn Coll, Dalian 116026, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2007年 / 32卷 / 16期

关键词：

LiBH4; nanoparticles; disordered mesoporous carbon; hydrogen storage performances; destabilization mechanisms;

D O I：

10.1016/j.ijhydene.2007.04.010

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 nanoparticles supported by disordered mesoporous carbon CMK-3, denoted as nano-LiBH4/C-mesoporous, were synthesized in the present work. Nano-LiBH4 in this sample was destabilized significantly, resulting in more favorable latent heat of dehydrogenation (40 kJ/mol H-2), large amount of dehydrogenation capacity (14wt%) below 600 degrees C and reversible capacity of 6.0wt% H-2 at 350 degrees C. It was revealed that such destabilization results from two kinds of mechanisms: nano-dispersion and reaction with mesoporous carbon. Both mechanisms exert synergistic effects on the dehydrogenation of nano-LiBH4 and reverse hydrogenation. (c) 2007 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.

引用

页码：3976 / 3980

页数：5

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