http://www.cnr.it/ontology/cnr/individuo/prodotto/ID52035
Photocatalytic reduction of oxygen molecules at the (100) TiO2 anatase surface (Articolo in rivista)
- Type
- Label
- Photocatalytic reduction of oxygen molecules at the (100) TiO2 anatase surface (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.susc.2004.12.019 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Amore Bonapasta A., Filippone F. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Titolo
- Photocatalytic reduction of oxygen molecules at the (100) TiO2 anatase surface (literal)
- Abstract
- The adsorption, photoreduction and chemical activity of oxygen molecules on the (1 0 0) anatase surface have been investigated here together with the effects that surface oxygen vacancies (VO) can have on these O2-related processes. We use an original approach by treating molecules on the TiO2 surface like surface defects in the same framework successfully used for defects in semiconductors. The achieved results: (i) give the first theoretical evidence of an acceptor behaviour of an adsorbed O2 molecule, which is at the origin of its photoreduction; (ii) show that the VO donor character is strongly affected by the interaction with O2; and (iii) suggest that the release of O2-1 radicals as well as the formation of O2-related radicals may be favoured by photogenerated electrons in presence of surface VOs. (literal)
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