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We have studied the catalytic carbon monoxide (CO) oxidation (CO+0.5O2→CO2) reaction using a powder catalyst composed of both copper (5wt.% loading) and titania (CuOx–TiO2). Our study was focused on revealing the role of Cu, and the interaction between Cu and TiO2, by systematic comparison between two nanocatalysts, CuOx–TiO2 and pure CuOx. We interrogated these catalysts under in situ conditions...
The adsorption of CO on two different mixed-terminated, single-crystal surfaces of zinc oxide, ZnO(101−0) and ZnO(112−0), was investigated by employing infrared reflection absorption spectroscopy (IRRAS) using p- and s-polarized light. For both surfaces, one negative CO band was observed only for p-polarized light, indicating that CO is bound to the surface Zn2+ sites in a nearly upright geometry...
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