TY - JOUR
T1 - In-situ XAS for niobium oxide catalyst on hydrogen absorption and desorption of magnesium
AU - Kimura, Toru
AU - Miyaoka, Hiroki
AU - Hanada, Nobuko
AU - Ichikawa, Takayuki
N1 - Publisher Copyright:
© 2015 The Japan Institute of Metals and Materials.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2015/3/1
Y1 - 2015/3/1
N2 - The variation of the niobium (Nb) oxide catalyst during hydrogen absorption and desorption reactions was investigated by in-situ X-ray absorption spectroscopy (XAS). Results indicated that H2 was easily dissociated on the catalyst because the hydrogen absorption kinetics was significantly improved, and then the hydrogen atoms were diffused through inside of the catalyst. Thus, the catalytic mechanism of Nb oxides is different from that of conventional metal catalysts, in which the dissociated H is moved on the surface of catalyst.
AB - The variation of the niobium (Nb) oxide catalyst during hydrogen absorption and desorption reactions was investigated by in-situ X-ray absorption spectroscopy (XAS). Results indicated that H2 was easily dissociated on the catalyst because the hydrogen absorption kinetics was significantly improved, and then the hydrogen atoms were diffused through inside of the catalyst. Thus, the catalytic mechanism of Nb oxides is different from that of conventional metal catalysts, in which the dissociated H is moved on the surface of catalyst.
KW - Catalyst
KW - Hydrogen storage materials
KW - In-situ X-ray absorption spectroscopy (XAS)
KW - Magnesium
UR - http://www.scopus.com/inward/record.url?scp=84930146279&partnerID=8YFLogxK
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U2 - 10.2320/jinstmet.JC201410
DO - 10.2320/jinstmet.JC201410
M3 - Article
AN - SCOPUS:84930146279
SN - 0021-4876
VL - 79
SP - 107
EP - 111
JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
IS - 3
ER -