Preparation and Hydrogen Generation for Al-LiBH4 Composite Materials

doi:10.7503/cjcu20121095

Chem. J. Chinese Universities ›› 2013, Vol. 34 ›› Issue (8): 1953.doi: 10.7503/cjcu20121095

• Physical Chemistry • Previous Articles Next Articles

Preparation and Hydrogen Generation for Al-LiBH₄ Composite Materials

LIU Hao^1,3, XU Fen², SUN Li-Xian^2,3, CAO Zhong¹, ZHOU Huai-Ying²

1. School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004, China;
2. Faculty of Material Science & Engineering, Guilin University of Electrical Technology, Guilin 541004, China;
3. Materials and Thermochemistry Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

Received:2012-12-04 Online:2013-08-10 Published:2013-07-19
Contact: LiXian SUN E-mail:lxsun@dicp.ac.cn;zhongcao2004@163.com

Abstract

Abstract:

Al-LiBH₄ composite materials were prepared by the mechanical ball milling. The results of the hydrogen-production curves and X-ray diffraction patterns show that when the reaction temperature is higher, the mutual promotion effect between aluminum and LiBH₄ will be more intensed, and the generation of hydrogen will be more. The milled materials have good properties of hydrogen generation in water at room temperature, especially for the Al-25%LiBH₄(mass fraction of LiBH₄ is 25%) material milled for 5 h with a ball/material ratio of 30: 1, which can produce 720 mL/g hydrogen. At 90℃, the Al-25%LiBH₄ material can produce 2026 mL/g hydrogen with the hydrogen yield of 95% while the Al-30%LiBH₄ material can produce 2211 mL/g hydrogen with the hydrogen yield of 96%.

Key words: Al-LiBH₄ composite material, Microcalorimetry, Hydrogen generation, Mechanical ball milling, X-Ray diffraction

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TrendMD:

LIU Hao, XU Fen, SUN Li-Xian, CAO Zhong, ZHOU Huai-Ying. Preparation and Hydrogen Generation for Al-LiBH₄ Composite Materials[J]. Chem. J. Chinese Universities, 2013, 34(8): 1953.

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Preparation and Hydrogen Generation for Al-LiBH₄ Composite Materials

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