Journal
JOURNAL OF CATALYSIS
Volume 287, Issue -, Pages 86-92Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2011.12.007
Keywords
Oxidative reforming; H-2 production; Room temperature; Rhodium; Rare earth oxide; Redox property; OSC
Categories
Funding
- JSPS
- KAKENHI [08J11493]
- Japan Petroleum Institute
- Nippon Sheet Glass Foundation for Materials Science and Engineering
- Grants-in-Aid for Scientific Research [08J11493] Funding Source: KAKEN
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Three rhodium catalysts supported on rare earth oxides with redox properties, Rh/CeO2, Rh/Pr6O11, and Rh/Tb4O7, were tested for their ability to trigger oxidative reforming of n-butane at room temperature. Only Rh/CeO2 triggered the oxidative reforming, owing to the heat generated by the spontaneous oxidation of the CeO2-x species produced by prior reduction of the supported catalyst with H-2. Although the three rare earth oxides were reduced to CeO1.91. Pr2O3, and Tb2O3, respectively, by H-2 at >= 873 K. CeO1.91 was the only reduced oxide that was oxidized upon exposure to O-2 at room temperature. These results indicate that the ability of the reduced oxide support to undergo oxidation at room temperature was crucial for triggering oxidative reforming of n-butane at room temperature. (C) 2011 Elsevier Inc. All rights reserved.
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