| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 64992 | Journal of Molecular Catalysis A: Chemical | 2015 | 11 Pages |
•CO adsorption is much stronger on the Pt/N–TiO2(101) doped catalyst.•O vacancies in TiO2(101) are stabilized when coexisting with N as a dopant.•CO conversion into CO2 by oxygen atoms of support surface is enhanced in Pt/N–TiO2.•Pt/N–TiO2−x catalyst has the weakest PtC bond.
The dynamics of the CO adsorption on Pt nanoparticles deposited on TiO2(101) (pure, N-doped and/or reduced) have been investigated using UV–visible diffuse reflectance spectroscopy, diffuse reflectance infrared Fourier transform spectroscopy and density functional theory. The results point to that N-doping and oxygen vacancies in the Pt/N–TiO2 system should favor catalytic reactions in which CO conversion into CO2 takes place mediated by support surface O atoms.
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