Effect of Platinum Nanocluster Size and Titania Surface Structure upon CO Surface Chemistry on Platinum-Supported TiO 2 (110) (original) (raw)
2001, The Journal of Physical Chemistry B
AI-generated Abstract
The study investigates the effect of platinum (Pt) nanocluster size and the surface structure of titania (TiO2) on the surface chemistry of carbon monoxide (CO) adsorption and desorption on Pt-supported TiO2 (110). The findings reveal that the TiO2 surface structure significantly influences CO desorption behaviors, where reduced (1 x 2)-reconstructed surfaces exhibit distinct desorption patterns compared to stoichiometric (1 x 1) surfaces. It was observed that smaller Pt clusters correlate with higher CO desorption temperatures due to quantum size effects, indicating a transition from nonmetallic to metallic behavior as cluster size increases. These insights provide essential understanding for optimizing catalytic processes involving Pt and TiO2.
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