Preparation and Characterisation of Ag/Alumina Catalysts for the Removal of NOx Emissions Under Oxygen Rich Conditions |
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| Authors: | K Arve L apek F Klingstedt K Eränen L -E Lindfors D Yu Murzin J Ddeek Z Sobalik and B Wichterlová |
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| Affiliation: | (1) Laboratory of Industrial Chemistry, Process Chemistry Group, Åbo Akademi University, Åbo, Finland;(2) J. Heyrovský Institute of Physical Chemistry, CZ-182 23 Prague 8, Czech Republic |
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| Abstract: | A highly active silver/alumina catalyst for continuous reduction of NO to nitrogen with octane under lean conditions was prepared. The effect of impregnation time and precursor concentration on the catalyst activity was investigated. The catalyst was characterized by means of XRF, H2-TPR, and UV–Vis to correlate recorded results with different preparation methods. UV–Vis measurements indicated that the highest and most stable activity is obtained with Ag/alumina exhibiting predominantly mono-atomically dispersed silver. |
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| Keywords: | Ag/alumina NO reduction HC-SCR lean burn UV– Vis |
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