2024-03-28T10:16:18Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/762762022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139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In-Situ TEM Observation for Reaction Mechanism in MgH2 Hydrogen Storage Material小野, 晃史礒部, 繁人王, 永明橋本, 直幸大貫, 惣明hydrogen strage materialsmagnesiumNb2O5catalysttransmission electron microscopy (TEM)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.日本金属学会Journal Articleapplication/pdfhttp://hdl.handle.net/2115/76276https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/76276/1/J.%20Jpn%20Inst.%20Met.%20Mater.%2074%283%29%20205.pdf0021-48761880-6880AN00062446日本金属学会誌7432052082010-03jpninfo:doi/10.2320/jinstmet.74.205publisher