Temperature-programed surface reaction study of CO oxidation over Au/TiO2 at low temperature: An insight into nature of the reaction process

- Design a novel TPSR method to investigate the process of oxidizing CO over Au/TiO2.
- CO is oxidized by the chemisorbed H2O over Au/TiO2 according to three different processes.
- CO is probably oxidized by the physisorbed molecular O2 over Au/TiO2 at low temperature.
- Water-gas shift reaction only occurs with the desorption of carbonate-like species at TiO2 sites.