One-step flame synthesis of an active Pt/TiO2 catalyst for SO2 oxidation: A possible alternative to traditional methods for parallel screening

Tue Johannessen, Sotiris Koutsopoulos

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Flame synthesis as a route for production of composite metal oxides has been employed for the one-step synthesis of a supported noble metal catalyst, i.e. a Pt/TiO2 catalyst, by simultaneous combustion of Ti-isopropoxide and platinum acetylacetonate in a quench-cooled flame reactor. The average size of the platinum particles supported on aggregated nano-particles of TiO2 is approximately 2 nm. The high SO2-oxidation activity of the catalyst proves that platinum is not hidden in the titania matrix. The flame-produced catalyst showed catalytic activity similar to samples prepared by wet platinum impregnation of pure titania.
Original languageEnglish
JournalJournal of Catalysis
Issue number2
Pages (from-to)404-408
Publication statusPublished - 2002

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