期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 38, 期 1, 页码 162-168出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2012.10.038
关键词
LiBH4; Mesoporous TiO2; Confinement; Desorption properties
资金
- 973 program [2010CB631303]
- NSFC [51171083, 51071087, 50971071]
- 111 Project [B12015]
LiBH4 nano-particles are incorporated into mesoporous TiO2 scaffolds via a chemical impregnation method. And the enhanced desorption properties of the composite have been investigated. The LiBH4/TiO2 sample starts to release hydrogen at 220 degrees C and the maximal desorption peak occurs at about 330 degrees C, much lower compared to the bulk LiBH4. Furthermore, the composite exhibits excellent dehydrogenation kinetics, with 11 wt% of hydrogen liberated from LiBH4 at 300 degrees C within 3 h. X-ray diffraction and Fourier transform infrared spectroscopy are used to confirm the nanostructure of LiBH4 in the TiO2 scaffold. This work demonstrates that confinement within active porous scaffold host is a promising approach for enhancing hydrogen decomposition properties of light-metal complex hydrides. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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