Bera, P and Hedge, MS (2002) Oxidation and decomposition of NH3 over combustion synthesized Al2O3 and CeO2 supported Pt, Pd and Ag catalysts. In: Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry, 41 (8). pp. 1554-1561.
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The catalytic oxidation and decomposition of NH3 have been carried out over combustion synthesized Al2O3 and CeO2 supported Pt, Pd and Ag catalysts using temperature programmed reaction (TPR) technique in a packed bed tubular reactor. Metals are ionically dispersed over CeO2 and fine metal particles are found on Al2O3. NH3 oxidation occurs over 1% Pt/Al2O3, 1% Pd/Al2O3 and 1% Ag/Al2O3 at 175, 270 and 350 C respectively producing N-2, NO, N2O and H2O, whereas 1% Pt/CeO2, 1% Pd/CeO2 and 1% Ag/CeO2 give N-2 along with NO, N2O and H2O at 200, 225 and 250degreesC respectively. N-2 predominates over other nitrogen-containing products during the reaction on all catalysts. At less O-2 concentration, N-2 and H2O are the only products obtained during NH3 Oxidation. NH3 decomposition over all the catalysts occurs above 450degreesC.
| Item Type: | Journal Article |
|---|---|
| Publication: | Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry |
| Publisher: | National Institute of Science Communication and Information Resources |
| Additional Information: | Copyright of this article belongs to National Institute of Science Communication and Information Resources. |
| Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
| Date Deposited: | 21 Jul 2011 09:12 |
| Last Modified: | 21 Jul 2011 09:12 |
| URI: | http://eprints.iisc.ac.in/id/eprint/39332 |
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