Guidelines for developing amide-based hydrogen storage materials

Yuko Nakamori; Gaku Kitahara; Akihito Ninomiya; Masakazu Aoki; Tatsuo Noritake; Shin Ichi Towata; Shin Ichi Orimo

doi:10.2320/matertrans.46.2093

Guidelines for developing amide-based hydrogen storage materials

Yuko Nakamori, Gaku Kitahara, Akihito Ninomiya, Masakazu Aoki, Tatsuo Noritake, Shin Ichi Towata, Shin Ichi Orimo

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

An effective method for developing amide-based high-performance hydrogen storage materials is to prepare appropriate combinations of amides and hydrides. We have proposed that a mixture of an amide with a low decomposition temperature and a hydride showing rapid reaction to ammonia would be an appropriate combination. According to this proposal, the mixture of Mg(NH ₂) ₂ (Mg amide) and LiH (Li hydride) was investigated. The dehydriding temperature of the mixture of Mg(NH ₂) ₂ and 4.LiH is lower than that of the mixture of LiNH ₂ (Li amide) and 2.LiH. A method for preventing ammonia release is increasing the LiH ratio in the mixtures, which results in a reduction in the amount of desorbed hydrogen. The homogeneous dispersion between Mg(NH ₂) ₂ and LiH might be also an important factor for preventing ammonia release.

Original language	English
Pages (from-to)	2093-2097
Number of pages	5
Journal	Materials Transactions
Volume	46
Issue number	9
DOIs	https://doi.org/10.2320/matertrans.46.2093
Publication status	Published - 2005 Sept

Keywords

Amide
Complex hydrides
Hydrogen storage
Lithium
Magnesium

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.2320/matertrans.46.2093

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abstract = "An effective method for developing amide-based high-performance hydrogen storage materials is to prepare appropriate combinations of amides and hydrides. We have proposed that a mixture of an amide with a low decomposition temperature and a hydride showing rapid reaction to ammonia would be an appropriate combination. According to this proposal, the mixture of Mg(NH 2) 2 (Mg amide) and LiH (Li hydride) was investigated. The dehydriding temperature of the mixture of Mg(NH 2) 2 and 4.LiH is lower than that of the mixture of LiNH 2 (Li amide) and 2.LiH. A method for preventing ammonia release is increasing the LiH ratio in the mixtures, which results in a reduction in the amount of desorbed hydrogen. The homogeneous dispersion between Mg(NH 2) 2 and LiH might be also an important factor for preventing ammonia release.",

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AU - Kitahara, Gaku

AU - Ninomiya, Akihito

AU - Aoki, Masakazu

AU - Noritake, Tatsuo

AU - Towata, Shin Ichi

AU - Orimo, Shin Ichi

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KW - Complex hydrides

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KW - Lithium

KW - Magnesium

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Guidelines for developing amide-based hydrogen storage materials

Abstract

Keywords

ASJC Scopus subject areas

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