Research Paper

Effects of B and C on Hydrogen Storage Properties of Li-N-H Complex Hydrides

  • LIU Yi-Xin ,
  • YANG Shu-Quan ,
  • ZHANG Dan-Dan ,
  • LI Guang-Xu ,
  • WEI Wen-Lou ,
  • GUO Jin
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  • College of Physical Science and Technology,Key Laboratory of National Education Ministry for Nonferrous Metals and Materials Processing Technology, Guangxi University,Nanning 530004, China

Received date: 2008-10-06

  Revised date: 2008-12-03

  Online published: 2009-07-20

Abstract

LiNH complex hydrides were prepared by mechanical alloying and the effects of B and C as catalyst on hydrogen storage properties were investigated. The results show that LiNH2 and Li2NH are the main phases in Li-N-H complex hydrides and the amorphous degree of the main phases increase with B element added. Although the hydrogen storage capacity decrease with B and C element added, the effective hydrogen storage capacity increase and the kinetic properties of hydrogen absorption/desorption can be improved when the adding n(B)∶n(C)=1∶2. The hydrogen absorption/desorption temperature can be decreased effectively with adding B. The reversible hydrogen absorption/desorption capacity can also be improved with milling time prolonging.

Cite this article

LIU Yi-Xin , YANG Shu-Quan , ZHANG Dan-Dan , LI Guang-Xu , WEI Wen-Lou , GUO Jin . Effects of B and C on Hydrogen Storage Properties of Li-N-H Complex Hydrides[J]. Journal of Inorganic Materials, 2009 , 24(4) : 813 -816 . DOI: 10.3724/SP.J.1077.2009.00813

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