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Journal of Nanomaterials
Volume 2011, Article ID 329757, 6 pages
http://dx.doi.org/10.1155/2011/329757
Research Article

Structural Characteristics of Bimetallic Catalysts Supported on Nano-Ceria

Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH 45435, USA

Received 22 December 2010; Accepted 4 February 2011

Academic Editor: Zhenmeng Peng

Copyright © 2011 J. F. Bozeman and H. Huang. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Cu-Pt bimetal catalysts supported on nanocrystalline CeO2 (nano-ceria) are synthesized via the low-cost sol-gel approach followed by impregnation processing. The average particle size of the catalytic composites is 63 nm. Ceria nanopowders sequentially impregnated in copper solution and then in Pt solution transformed into Pt-skin-structured Cu-Pt/ceria nanocomposite, based on the surface elemental and bulk compositional analyses. The ceria supporter has a fluorite structure, but the structure of Cu and Pt catalytic contents, not detected by X-ray diffraction spectroscopy due to the low loading level, is yet conclusive. The bimetallic catalytic nanocomposites may potentially serve as sulfur-tolerant anode in solid oxide fuel cells.