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cc-by (c) Remesal, Elena R. et al., 2023
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/206740

Role of N Doping in the Reduction of Titania Nanostructures

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The effect of N-doping of titania (TiO2) nanoparticles (NPs) on their reduction through neutral O vacancy (Ovac) formation is investigated using all electron density functional theory-based calculations, including hybrid density functionals, and taking the bipyramidal anatase (TiO2)84 NP as a realistic model. The location of the N dopant is systematically analyzed, including O substitution in the (TiO2)84 structure and N occupying interstitial regions. Our computational study concludes that interstitial N doping is more favorable than N substituting O atoms and confirms that the presence of N reduces the energy gap. In the N-doped NP, Ovac formation is more favored than in undoped NP but less than in the N-doped bulk, which has important consequences.

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REMESAL, Elena r., MORALES GARCÍA, Ángel, ILLAS I RIERA, Francesc. Role of N Doping in the Reduction of Titania Nanostructures. _Journal of Physical Chemistry C_. 2023. Vol. 127, núm. 20128-20136. [consulta: 15 de gener de 2026]. ISSN: 1932-7447. [Disponible a: https://hdl.handle.net/2445/206740]

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