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- W2044698971 abstract "One weight percentage PdO/SnO2 and 0.1 wt.% Na–1 wt.% PdO/SnO2 catalysts have been synthesized through a sol–gel route and these catalysts have been characterized by XRD, BET, SEM and temperature-programmed adsorption and desorption techniques with regard to their activity for the CO oxidation reaction. CO adsorption and CO–O2 co-adsorption followed by O2 TPD have been carried out to observe the role of sodium promotion on the catalytic activity. The catalytic activity of PdO/SnO2 catalysts is suppressed by blockage of CO active sites by O2 on co-adsorbed catalysts. Sodium-promoted catalysts possess increased affinity to oxygen and thus, exhibit superior activity upon CO–O2 co-adsorption, but these catalysts have been observed to perform poorly upon consecutive adsorption of CO and O2. The effect has been ascribed to enhanced interaction of sodium-promoted surfaces with CO hindering oxygen adsorption on CO precovered surface." @default.
- W2044698971 created "2016-06-24" @default.
- W2044698971 creator A5016592676 @default.
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- W2044698971 date "2005-03-01" @default.
- W2044698971 modified "2023-10-18" @default.
- W2044698971 title "CO oxidation over palladium- and sodium-promoted tin dioxide: catalyst characterization and temperature-programmed studies" @default.
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- W2044698971 doi "https://doi.org/10.1016/j.apcata.2004.11.036" @default.
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