Synthesis and decomposition reactions of metal amides in metal-N-H hydrogen storage system
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Reactive ball milling
After some metal amides M(NH2)x such as LiNH2, NaNH2, Mg(NH2)2 and Ca(NH2)2 were synthesized by ball milling the corresponding metal hydrides MHx under ammonia atmosphere at room temperature, their thermal decomposition properties were examined, which play important roles for designing a new family of novel Metal-N-H systems. The results indicate that the kinetics of their synthesizing reactions are faster in the order of Na amide > Li amide > Ca amide > Mg amide, while both Mg(NH2)2 and Ca(NH2)2 decompose and emit NH3 at lower temperature than LiNH2.
Journal of Power Sources
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Copyright (c) 2005 Elsevier B.V.
Graduate School of Advanced Sciences of Matter
Natural Science Center for Basic Research and Development
Institute for Advanced Materials Research