Title of article :
Investigation on chemical reaction between LiAlH4 and LiNH2
Author/Authors :
Zhitao Xiong، نويسنده , , Guotao Wu، نويسنده , , Jianjiang Hu، نويسنده , , Ping Chen، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
4
From page :
167
To page :
170
Abstract :
Although the transformation of the tetrahedral [AlH4]− to the octahedral [AlH6]3− occurs at high temperature, it was realized by ball milling (BM) of LiAlH4 at ambient temperature in the presence of LiNH2. Instead of a catalytical role, we found that LiNH2 may react with LiAlH4 to form an intermediate with a 1:1 stoichiometry. Our results show that a total amount of about 8 wt% H2 can be detached from the mixture of LiAlH4–LiNH2 which is potential for an effective hydrogen storage system. Calculations combined with DSC measurements result in a very low enthalpy effect of the H2 release reaction, further implying a possible reversibility in hydrogen storage.
Keywords :
LiNH2 , LiAlH4 , hydrogen desorption
Journal title :
Journal of Power Sources
Serial Year :
2006
Journal title :
Journal of Power Sources
Record number :
437665
Link To Document :
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