Reduction of NO by H2 and CO on Pt/TiO2/SiO2 |
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| Authors: | Martyn de Lange Yvonne Mergler Ben Nieuwenhuys |
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| Affiliation: | (1) Leiden Institute of Chemistry, Leiden University, PO Box 9502, NL-2300 RA Leiden, The Netherlands |
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| Abstract: | Different catalysts based on platinum and a silica, titania or mixed titania/silica support were studied in NO reduction reactions by CO and H2 in the temperature range of 25–400 C. The mixed oxide catalysts showed considerably lower onset temperatures in NO/CO reactions but this coincided with a maximum in N2O formation. In NO/H2 reactions all titania containing catalysts produced more N2O than silica supported platinum at low temperatures but were more selective to N2 at high temperatures. |
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| Keywords: | automotive catalysis platinum promoter NO reduction |
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