Dhakad, M. and Joshi, Amish G. and Rayalu, S. and Tanwar, P. and Bassin, J. K. and Kumar, R. and Lokhande, S. and Subrt, J. and Mitsuhashi, T. and Labhsetwar, Nitin (2009) Alumina Supported Co–K–Mo Based Catalytic Material for Diesel Soot Oxidation. Topics in Catalysis , 52 (13-20). pp. 2070-2075. ISSN 1572-9028

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Abstract

Alumina supported Co–K–Mo based mixed metal oxide type catalytic materials have been prepared by co-impregnation. These catalysts show excellent activity for carbon as well as diesel soot oxidation, which could be due to the redox properties of Mo and Co as well as to a synergistic effect of molybdenum, cobalt, and K contents. The catalyst containing 5 wt% molybdenum shows a lowering of carbon oxidation by about 190 °C under loose contact conditions as compared to the non-catalyzed reaction, as well as to bare alumina. Characterization studies suggest a composite nature of these materials, while thermal stability investigations confirm the stable nature. The selected catalyst has been studied by XPS, however, it is difficult to conclude which are the important factors contributing to the catalytic activity. It appears to be a synergistic effect of Co, K, and Mo components as these catalysts show much improved activity as compared to the individual components in supported and unsupported forms.

Item Type:	Article
Additional Information:	Copyright for this article belongs to Springer Science+Business Media.
Subjects:	Chemistry
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	08 Aug 2012 12:25
Last Modified:	08 Aug 2012 12:25
URI:	http://npl.csircentral.net/id/eprint/397

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