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Combustion synthesis of nanometal particles supported on ${\alpha}-Al_{2}O_{3}$: CO oxidation and NO reduction catalysts

Bera, Parthasarathi and Patil, KC and Jayaram, V and Hegde, MS and Subbanna, GN (1999) Combustion synthesis of nanometal particles supported on ${\alpha}-Al_{2}O_{3}$: CO oxidation and NO reduction catalysts. In: Journal Of Materials Chemistry, 9 (8). pp. 1801-1805.

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Abstract

Nanoparticles of Pt, Pd, Ag and Au supported on alpha-Al2O3 have been synthesized by the combustion method for the first time and characterized by X-ray diffraction, transmission electron microscopy and X-ray photoelectron spectroscopy. Catalytic activities of these nanosized materials have been investigated. For the CO+O-2 reaction, 100% CO conversion occurs below 300 degrees C over supported Pt, Pd and Ag metals whereas 90% conversion is observed over Au at 450 degrees C. Similarly 100% NO conversion is seen over 1% Pd/Al2O3 and 1% Pt/Al2O3 below 400 degrees C for the NO+CO reaction whereas approximate to 90% NO is converted into N-2 above 650 degrees C on 1% Ag/Al2O3 and 1% Au/Al2O3.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Royal Society of Chemistry.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Division of Chemical Sciences > Inorganic & Physical Chemistry
Date Deposited: 02 Mar 2009 06:36
Last Modified: 19 Sep 2010 05:00
URI: http://eprints.iisc.ernet.in/id/eprint/18112

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