Complex hydrides for advanced hydrogen storage media

Haiwen Li, Yuko Nakamori, Kazutoshi Miwa, Shin Ichi Towata, Shin-Ichi Orimo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Two effective methods, 1) substitution of M elements and 2) preparation of appropriate mixtures, for decreasing the dehydriding temperatures of M-N-H and M-B-H (M=Li, Mg) systems were briefly reviewed. The dehydriding reactions of LiNH2 and LiBH4 with/without Mg substitutions proved that the dehydriding temperatures become lower with the increasing Mg concentrations. Also, a mixture of Mg(NH2)2 and LiH, which was chosen as one of the best compositions with low dehydriding temperature among mixtures of M(NH2)x and MHy. Increasing the LiH ratio in the mixtures is one of the important techniques to prevent ammonia release. Moreover, the dehydriding temperature of LiBH4 was reduced by 150 K by mixing 2 M of LiNH2, suggests that the stabilities of the dehydriding reactions of complex hydrides can be controlled by introducing new pathways by mixing.

Original languageEnglish
Title of host publication16th World Hydrogen Energy Conference 2006, WHEC 2006
Pages2062-2066
Number of pages5
Volume3
Publication statusPublished - 2006 Dec 1
Event16th World Hydrogen Energy Conference 2006, WHEC 2006 - Lyon, France
Duration: 2006 Jun 132006 Jun 16

Other

Other16th World Hydrogen Energy Conference 2006, WHEC 2006
CountryFrance
CityLyon
Period06/6/1306/6/16

Keywords

  • Amide
  • Borohydride
  • Complex hydride
  • Hydrogen storage
  • Lithium

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology

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