@prefix prodottidellaricerca: . @prefix istituto: . @prefix prodotto: . istituto:CDS073 prodottidellaricerca:prodotto prodotto:ID43565 . @prefix pubblicazioni: . @prefix unitaDiPersonaleEsterno: . unitaDiPersonaleEsterno:ID10444 pubblicazioni:autoreCNRDi prodotto:ID43565 . @prefix modulo: . modulo:ID5551 prodottidellaricerca:prodotto prodotto:ID43565 . @prefix rdf: . @prefix retescientifica: . prodotto:ID43565 rdf:type retescientifica:ProdottoDellaRicerca , prodotto:TIPO1101 . @prefix rdfs: . prodotto:ID43565 rdfs:label "FTIR and TPD analysis of surface species on a TiO2 photocatalyst exposed to NO, CO, and NO-CO mixtures: effect of UV-Vis light irradiation (Articolo in rivista)"@en . @prefix xsd: . prodotto:ID43565 pubblicazioni:anno "2009-01-01T00:00:00+01:00"^^xsd:gYear . @prefix skos: . prodotto:ID43565 skos:altLabel "
Mikhaylov R. V.; Lisachenko A. A.; Shelimov B. N.; Kazansky V. B.; Martra G.; Alberto G.; Coluccia S. (2009)
FTIR and TPD analysis of surface species on a TiO2 photocatalyst exposed to NO, CO, and NO-CO mixtures: effect of UV-Vis light irradiation
in Journal of physical chemistry. C
"^^rdf:HTML ; pubblicazioni:autori "Mikhaylov R. V.; Lisachenko A. A.; Shelimov B. N.; Kazansky V. B.; Martra G.; Alberto G.; Coluccia S."^^xsd:string ; pubblicazioni:paginaInizio "20381"^^xsd:string ; pubblicazioni:paginaFine "20387"^^xsd:string ; pubblicazioni:numeroVolume "113"^^xsd:string . @prefix ns11: . prodotto:ID43565 pubblicazioni:rivista ns11:ID124278 ; pubblicazioni:note "In: Journal of Physical Chemistry C, vol. 113 (47) pp. 20381 - 20387. AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA, 2009."^^xsd:string ; skos:note "ISI Web of Science (WOS)"^^xsd:string ; pubblicazioni:affiliazioni "St Petersburg State Univ, St Petersburg 198504, Russia, Russian Acad Sci, Zelinsky Inst Organ Chem, Moscow 119991, Russia, Univ Turin, Dept IPM Chem & Interdipartimental, NIS Ctr Excellence, I-10125 Turin, Italy"^^xsd:string ; pubblicazioni:titolo "FTIR and TPD analysis of surface species on a TiO2 photocatalyst exposed to NO, CO, and NO-CO mixtures: effect of UV-Vis light irradiation"^^xsd:string ; prodottidellaricerca:abstract "As a continuation of our previous work on the kinetics of photocatalytic reduction of NO by CO on titanium dioxide, interaction of a Degussa P-25 TiO2 photocatalyst with NO, CO, and NO-CO mixtures at ambient temperature has been studied by FTIR and TPD. Only reversible weak adsorption of NO on surface Ti4+ ions is found to occur in the dark. UV-vis irradiation greatly enhances the NO adsorption on Ti4+ and yields N2O, NO-, NO2-, and NO3- surface species. After irradiation of TiO2 in a CO atmosphere, IR bands of surface CO2- and CO3- species appear in addition to a continuous IR absorption tail towards lower wavenumbers due to free carriers in the reduced semiconductor. When TiO2 is exposed to a equimolar NO-CO mixture, N2O and CO2- are formed without irradiation supposedly by the reaction 2 NO + 2 CO + O-2(-) - 2 CO2- + N2O. Subsequent light irradiation is accompanied by the accumulation of NO- and Ti-4(+)center dot center dot center dot NO complexes. No TiO2 reduction occurs in this case. FTIR spectra show that NO- produced by the photoinduced adsorption of NO can be eliminated by the following reaction: NO- + CO -(hv) CO2- + (1/2) N-2. It is believed that this reaction is a key step in the nitrogen production by the photocatalytic process. The data obtained enable us to refine the earlier proposed reaction mechanism and to directly prove some of its key steps" ; prodottidellaricerca:prodottoDi modulo:ID5551 , istituto:CDS073 ; pubblicazioni:autoreCNR unitaDiPersonaleEsterno:ID10444 . @prefix parolechiave: . prodotto:ID43565 parolechiave:insiemeDiParoleChiave . ns11:ID124278 pubblicazioni:rivistaDi prodotto:ID43565 . parolechiave:insiemeDiParoleChiaveDi prodotto:ID43565 .