Activity improvement of gold yolk–shell catalysts for CO oxidation by doping with TiO2

Activity improvement of gold yolk–shell catalysts for CO oxidation by doping with TiO2

Au, rO2 yolk-shell catalysts were found to exhibit a surprisingly high activity in CO oxidation even though the gold particle size is about 15 nm. A further enhancement of the activity has been achieved by simply doping these materials with small amounts of TiO2 during synthesis. A comparison of the...

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Veröffentlicht in:Catalysis science & technology 2011-01, Vol.1 (1), p.65-68
Hauptverfasser: Güttel, Robert, Paul, Michael, Schüth, Ferdi
Format: Artikel
Sprache:eng
Schlagworte:
Carbon monoxide
Catalysis
Catalysts
Doping
Gold
Oxidation
Titanium dioxide
Zirconium dioxide
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Zusammenfassung:Au, rO2 yolk-shell catalysts were found to exhibit a surprisingly high activity in CO oxidation even though the gold particle size is about 15 nm. A further enhancement of the activity has been achieved by simply doping these materials with small amounts of TiO2 during synthesis. A comparison of the standard Au, rO2 yolk-shell catalysts with the novel TiO2-doped Au/Ti, rO2 shows significant activity enhancement, even though small amounts of TiO2 are present.
ISSN:2044-4753
2044-4761
DOI:10.1039/c0cy00026d