2009年9月
In Situ Time-Resolved Energy-Dispersive XAFS Study on Reduction Behavior of Pt Supported on TiO2 and Al2O3
CATALYSIS LETTERS
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- 巻
- 131
- 号
- 3-4
- 開始ページ
- 413
- 終了ページ
- 418
- 記述言語
- 英語
- 掲載種別
- 研究論文（学術雑誌）
- DOI
- 10.1007/s10562-009-0095-8
- 出版者・発行元
- SPRINGER
The dynamic reduction behavior of a highly dispersed Pt4+ to Pt-0 particles on TiO2 and Al2O3 surfaces under the reductive atmosphere with an in situ time-resolved energy-dispersive X-ray absorption fine structure (DXAFS) analysis. A highly dispersed Pt4+ on TiO2 was reduced to Pt-0 even at room temperature. In contrast, a highly dispersed Pt4+ on Al2O3 was gradually reduced to Pt-0 even at 473 K. This result may suggest that the semi-conductive behavior of TiO2 promotes the low temperature adsorption of hydrogen and supply of hydrogen atom to Pt4+ to be reduced and the activation of hydrogen on Al2O3 requires high temperature.
- リンク情報
- ID情報
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- DOI : 10.1007/s10562-009-0095-8
- ISSN : 1011-372X
- eISSN : 1572-879X
- Web of Science ID : WOS:000269883300012