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電子顕微鏡その場観察による Mg 系水素貯蔵材料の反応メカニズムの検討

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J. Jpn Inst. Met. Mater. 74(3) 205.pdf2.76 MBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/76276

Title: 電子顕微鏡その場観察による Mg 系水素貯蔵材料の反応メカニズムの検討
Other Titles: In-Situ TEM Observation for Reaction Mechanism in MgH2 Hydrogen Storage Material
Authors: 小野, 晃史1 Browse this author
礒部, 繁人2 Browse this author →KAKEN DB
王, 永明3 Browse this author
橋本, 直幸4 Browse this author →KAKEN DB
大貫, 惣明5 Browse this author
Authors(alt): Ono, Akifumi1
Isobe, Shigehito2
Wang, Yongming3
Hashimoto, Naoyuki4
Ohnuki, Somei5
Keywords: hydrogen strage materials
magnesium
Nb2O5
catalyst
transmission electron microscopy (TEM)
Issue Date: Mar-2010
Publisher: 日本金属学会
Journal Title: 日本金属学会誌
Journal Title(alt): Journal of the Japan Institute of Metals
Volume: 74
Issue: 3
Start Page: 205
End Page: 208
Publisher DOI: 10.2320/jinstmet.74.205
Abstract: In-situ observation of the catalytic action of MgH2-1 mol%Nb2O5 and MgH2-10 mol%Nb2O5 was carried out by using transmission electron microscopy (TEM). In case of MgH2-1 mol%Nb2O5, TEM analysis indicated that MgH2 started to decompose at 150°C and nano-size particle of Mg formed. However, Nb2O5 was not observed in the diffraction pattern and images. In case of MgH2-10 mol%Nb2O5, high resolution images, FFT and IFFT, revealed that the decomposition of MgH2 started with the contact region in Nb2O5 and Mg formed. The result suggested that the reaction of dehydration could proceed due to hydrogen diffusion to the Mg-Nb2O5 interface.
Type: article
URI: http://hdl.handle.net/2115/76276
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 橋本 直幸

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