期刊
CATALYSIS TODAY
卷 175, 期 1, 页码 593-597出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cattod.2011.03.008
关键词
Arc-plasma; Supported Rh catalyst; AlPO4; CO oxidation
资金
- MEXT Japan
A highly dispersed supported Rh catalyst was successfully prepared by an arc-plasma process for the first time and was characterized by means of TEM, XPS and EXAFS. Repeated generation of pulsed arc-plasma using a Rh rod as a cathode was found to deposit crystallized uniform metallic Rh particles with the size of 2.4 +/- 1.1 nm onto the surface of AlPO4 powders. The metal-support interaction via Rh-O-P bonding in the catalyst prepared using arc-plasma was found to be weaker than in the catalyst prepared by conventional wet impregnation. The arc-plasma catalyst preparation achieved a higher CO oxidation activity because of highly dispersed metallic Rh nanoparticles. (C) 2011 Elsevier B.V. All rights reserved.
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