Table of Contents
Journal of Catalysts
Volume 2014, Article ID 807545, 9 pages
http://dx.doi.org/10.1155/2014/807545
Research Article

Catalytic Behaviour of Mesoporous Cobalt-Aluminum Oxides for CO Oxidation

1CSIR-Indian Institute of Petroleum, Dehradun, India
2Instituto de Física del Sur (UNS-CONICET), 8000 Bahía Blanca, Argentina
3Research Group X-Ray Physics and Nanoscience Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
4Fraunhofer Institute of Environmental, Safety, and Energy Technology UMSICHT, Oberhausen, Germany
5Laboratory of Industrial Chemistry, Ruhr University Bochum, Bochum, Germany

Received 12 May 2014; Revised 31 August 2014; Accepted 1 September 2014; Published 1 October 2014

Academic Editor: Mohammed M. Bettahar

Copyright © 2014 Ankur Bordoloi et al. 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

Ordered mesoporous materials are promising catalyst supports due to their uniform pore size distribution, high specific surface area and pore volume, tunable pore sizes, and long-range ordering of the pore packing. The evaporation-induced self-assembly (EISA) process was applied to synthesize mesoporous mixed oxides, which consist of cobalt ions highly dispersed in an alumina matrix. The characterization of the mesoporous mixed cobalt-aluminum oxides with cobalt loadings in the range from 5 to 15 wt% and calcination temperatures of 673, 973, and 1073 K indicates that Co2+ is homogeneously distributed in the mesoporous alumina matrix. As a function of the Co loading, different phases are present comprising poorly crystalline alumina and mixed cobalt aluminum oxides of the spinel type. The mixed cobalt-aluminum oxides were applied as catalysts in CO oxidation and turned out to be highly active.