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DOI: 10.1039/A901826C (Paper) Reference Section for: J. Mater. Chem., 1999, 9, 1801-1806

Combustion synthesis of nanometal particles supported on α-Al2O3: CO oxidation and NO reduction catalysts

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Parthasarathi Bera, K. C. Patil, V. Jayaram, M. S. Hegde and G. N. Subbanna

Abstract

Nanoparticles of Pt, Pd, Ag and Au supported on α-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+O2 reaction, 100% CO conversion occurs below 300[thin space (1/6-em)]°C over supported Pt, Pd and Ag metals whereas 90% conversion is observed over Au at 450[thin space (1/6-em)]°C. Similarly 100% NO conversion is seen over 1% Pd/Al2O3 and 1% Pt/Al2O3 below 400[thin space (1/6-em)]°C for the NO+CO reaction whereas ≈90% NO is converted into N2 above 650[thin space (1/6-em)]°C on 1% Ag/Al2O3 and 1% Au/Al2O3.

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