Hydrogen release of catalyzed lithium aluminum hydride by a mechanochemical reaction
Journal of Alloys and Compounds 462 巻 1-2 号
275-278 頁
2008-08-25 発行
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| ファイル情報(添付) | |
| タイトル ( eng ) |
Hydrogen release of catalyzed lithium aluminum hydride by a mechanochemical reaction
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| 作成者 |
Kawai Yasuaki
Matsumoto Mitsuru
Haga Tetsuya
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| 収録物名 |
Journal of Alloys and Compounds
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| 巻 | 462 |
| 号 | 1-2 |
| 開始ページ | 275 |
| 終了ページ | 278 |
| 抄録 |
The effects of various catalysts on the H2 release characteristics of LiAlH4 were studied. It was established that the catalytic activity defined by the H2 desorption capacity by a mechanochemical reaction decreased in the series TiCl3>ZrCl4>VCl3>NiCl2>ZnCl2. Transition metal trialuminides Al3X (X=Ti, Zr, V, Ni) were prepared by the mechanochemical reaction of LiAlH4 and the metal chlorides, while the reaction of LiAlH4 and ZnCl2 yields Zn. The high catalytic activity was attributed to the lower percentage d-character and the electronegativity of those transition metals. The catalytic activity of Ni was also improved with decreasing the Ni particle size. Those catalysts were classified to two groups (1. TiCl3, ZrCl4, 2. VCl3, NiCl2, Ni, nano-Ni) from the viewpoint of the H2 desorption mechanism.
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| 著者キーワード |
Hydrogen absorbing materials
Metal hydrides
Mechanochemical processing
Catalysis
X-ray diffraction
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| NDC分類 |
化学 [ 430 ]
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| 言語 |
英語
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| 資源タイプ | 学術雑誌論文 |
| 出版者 |
Elsevier Science S.A.
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| 発行日 | 2008-08-25 |
| 権利情報 |
Copyright (c) 2007 Published by Elsevier B.V.
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| 出版タイプ | Author’s Original（十分な品質であるとして、著者から正式な査読に提出される版） |
| アクセス権 | オープンアクセス |
| 収録物識別子 |
[ISSN] 0925-8388
[DOI] 10.1016/j.jallcom.2007.08.015
[NCID] AA10817249
[DOI] http://dx.doi.org/10.1016/j.jallcom.2007.08.015
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