Article ID Journal Published Year Pages File Type
55795 Catalysis Today 2011 5 Pages PDF
Abstract

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.

Graphical abstract.Figure optionsDownload full-size imageDownload high-quality image (296 K)Download as PowerPoint slideHighlights► A highly dispersed supported Rh catalyst was prepared by arc-plasma process. ► Arc-plasma-preparation yields metallic Rh particles with the size of 2.4 ± 1.1. ► Arc-plasma-preparation achieves a higher catalytic activity than wet-impregnation.

Related Topics
Physical Sciences and Engineering Chemical Engineering Catalysis
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