Affordable Access

Study of CuO/CeO2 catalyst with for preferential CO oxidation reaction in hydrogen-rich feed (PROX-CO)

Authors
  • Maciel, Cristhiane Guimaraes
  • Silva, Tatiana de Freitas
  • Roberto Profeti, Luciene Paula
  • Assaf, Elisabete Moreira
  • Assaf, Jose Mansur
Publication Date
Jan 01, 2012
Source
Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI USP)
Keywords
Language
English
License
Unknown
External links

Abstract

The CuO/CeO2 system was investigated as a catalyst for preferential CO oxidation reaction in hydrogen-rich feed (PROX-CO). The catalysts were prepared by deposition-precipitation (DEP) and co-precipitation (COP) methods and the catalytic performance reveals that the preparation method influences the properties of solids prepared, where a direct consequence is the difference in behavior of the catalysts in the PROX-CO reaction. A high specific area and a better dispersion of the metallic phase were obtained in the catalyst prepared by co-precipitation. The redox properties during the reaction were reported by measures of temperature programmed reduction (TPR), OSC measurements and X-ray absorption near edge structure (XANES-TPR) in situ showed the relationship between the preparation method, the physicochemical characteristics and redox properties in the PROX-CO reaction. By this means, the good dispersion of CuO and the best oxygen capacity are the response of the high performance of CuO/CeO2-COP catalysts for the PROX-CO reaction. Crown Copyright (c) 2012 Published by Elsevier B.V. All rights reserved.

Report this publication

Statistics

Seen <100 times