Microemulsions in the Preparation of Highly Active Combustion Catalysts

0166602 - UCHP-M 20020296 RIV NL eng J - Journal Article
Rymeš, Jan - Ehret, G. - Hilaire, L. - Boutonnet, M. - Jirátová, Květa
Microemulsions in the Preparation of Highly Active Combustion Catalysts.
Catalysis Today. Roč. 75, 1-4 (2002), s. 297-303. ISSN 0920-5861. E-ISSN 1873-4308
R&D Projects: GA ČR GA106/02/0523
Institutional research plan: CEZ:AV0Z4072921
Keywords : microemulsions * catalytic combustion * VOC
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 2.146, year: 2002

Catalytic activity in combustion of toluene in tolueneůair mixtures and physicalůchemical properties of platinum catalysts prepared from reverse microemulsions (water-in-oil) and by classical impregnation from water solutions of H2PtCl6 were studied. Microemulsion catalysts were more active than those prepared classically from water solutions. Size of Pt in classically impregnated catalysts was three times higher than that of catalysts prepared from microemulsions. In case of microemulsion preparation method, platinum is located near the pellet surface or its position in the pellet can be optimised. The effect of oil used in microemulsion system seems to be negligible for the activity of the catalysts with 0.1 wt.
Permanent Link: http://hdl.handle.net/11104/0063720