Support effect of metal oxide on Rh catalysts in the CH4-CO2 reforming reaction

被引：54
|
作者：
Yokota, S
Okumura, K
Niwa, M
机构：
[1] Tottori Univ, Fac Engn, Dept Mat Sci, Tottori 6808552, Japan
[2] Japan Synchrotron Radiat Res Inst, Mikazuki, Hyogo 6795198, Japan
来源：
CATALYSIS LETTERS | 2002年 / 84卷 / 1-2期
关键词：
carbon dioxide reforming; Rh-supported catalyst; structure-sensitive reaction; support effect;
D O I：
10.1023/A:1021097206196
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Rhodium supported on various metal oxides was studied in the dry reforming reaction using methane and carbon dioxide, in order to reveal the effect of support on the catalytic activity of Rh. The TOF (turnover frequency) based on exposed Rh decreased in the following sequence of support: TiO2 > La2O3 (sic) CeO2 > ZrO2 (sic) MgO (sic) SiO2 (sic) MCM-41 > gamma-Al2O3. The different TOF could be correlated with the stabilized species of Rh atom. It was concluded that the supports influenced the electronic state of Rh atoms, and that Rh metal catalyzed this reaction as a prominent active species.
引用
收藏
页码：131 / 134
页数：4
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