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observed by dispersive XAFSOyama, Takahiro; Matsumura, Daiju 
; Okajima, Yuka; Nishihata, Yasuo; Li, H.-W.*; Ikeda, Kazuki*; Orimo, Shinichi*; Takahashi, Isao*
Complex bronhydride Mg(B) is known to have lower dehydrogenation temperature by doping Ti chloride or Ti oxide. In this study, we observed real-time local structural transformation around Ti atoms during temperature induced dehydrogenation by dispersive XAFS method. For the case of Ti chloride doping, it is revealed that Ti atoms form bronhydride complex before temperature heating. Adrupt hydrogen desorption from Ti bronhydride makes the dehydrogenation temperature small. On the other hand, in the case of Ti oxide doping, Ti keeps its structure before heating. As temperature is raised, Ti slowly changes to TiB with catalytic behavior for dehydrogenation of Mg(BH).
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: | 2009/01 |
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: | 東京 |
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: | 日本 |
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