The role of surface species on the SCR of NO by C3H6 under lean-burn conditions over platinum catalyst |
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| Authors: | Choowong Chaisuk and Piyasan Praserthdam |
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| Affiliation: | (1) Research Center on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Chulalongkorn University, Bangkok, 10330, Thailand |
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| Abstract: | The nature of the surface species on Pt/Al2O3 for the SCR of NO by C3H6 under excess oxygen has been investigated. An experiment consisting of three steps shows that there are at least three types of surface species occurring on the catalyst surface. However, a reactivity test and an investigation of surface species after adding a second metal (Fe, Sn, Co, Cr or W) to Pt/Al2O3 indicate that only (ClHmOn)HT species play an important role in NO reduction at a low operating temperature. This revised version was published online in June 2006 with corrections to the Cover Date. |
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| Keywords: | SCR of NO by C3H6 Pt/Al2O3 bimetallic catalysts |
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