000118989 001__ 118989
000118989 005__ 20240319081014.0
000118989 0247_ $$2doi$$a10.1016/j.jece.2022.108261
000118989 0248_ $$2sideral$$a129472
000118989 037__ $$aART-2022-129472
000118989 041__ $$aeng
000118989 100__ $$aChávez-Sifontes, M.
000118989 245__ $$aThe promoter effect of Nb species on the catalytic performance of Ir-based catalysts for VOCs total oxidation
000118989 260__ $$c2022
000118989 5060_ $$aAccess copy available to the general public$$fUnrestricted
000118989 5203_ $$aIr/TiO2 catalysts promoted by niobium have been synthesized, characterized by different complementary techniques, and tested for the total oxidation of a set of alkanes and their mixtures. The addition of appropriate amounts of niobium to Ir/TiO2 catalysts resulted in a remarkable increase in the catalytic activity compared to the Nb-free Ir/TiO2 catalysts. The promotion caused by the presence of niobium has been related to the massive presence of isolated IrOx surface species which, interestingly, present remarkable reducibility and, consequently, excellent catalytic activity. Conversely, the IrOx species formed in the catalyst in the absence of niobium also include IrO2 clusters with lower intrinsic reactivity. Similarly, Nb-loadings exceeding the theoretical monolayer tends to the formation of bulk Nb2O5 species on the titania surface that provokes the formation of IrO2 nanoclusters. A positive influence on the reactivity of non-stoichiometric surface Ti3+ species that generates oxygen vacancies is also observed.
000118989 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000118989 590__ $$a7.7$$b2022
000118989 592__ $$a1.198$$b2022
000118989 591__ $$aENGINEERING, ENVIRONMENTAL$$b12 / 55 = 0.218$$c2022$$dQ1$$eT1
000118989 593__ $$aChemical Engineering (miscellaneous)$$c2022$$dQ1
000118989 591__ $$aENGINEERING, CHEMICAL$$b16 / 141 = 0.113$$c2022$$dQ1$$eT1
000118989 593__ $$aWaste Management and Disposal$$c2022$$dQ1
000118989 593__ $$aProcess Chemistry and Technology$$c2022$$dQ1
000118989 593__ $$aPollution$$c2022$$dQ1
000118989 594__ $$a9.5$$b2022
000118989 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000118989 700__ $$aGarcía, A.
000118989 700__ $$aSanchis, R.
000118989 700__ $$aFurgeaud, C.
000118989 700__ $$0(orcid)0000-0002-5229-2717$$aMayoral, A.$$uUniversidad de Zaragoza
000118989 700__ $$0(orcid)0000-0002-2071-9093$$aArenal, R.
000118989 700__ $$aMorgan, D.J.
000118989 700__ $$aTaylor, S.H.
000118989 700__ $$0(orcid)0000-0002-6203-8835$$aLópez, J.M.
000118989 700__ $$aGarcía, T.
000118989 700__ $$aSolsona, B.
000118989 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000118989 773__ $$g10, 5 (2022), 108261 [12 pp.]$$pJ. env. chem. eng.$$tJournal of Environmental Chemical Engineering$$x2213-3437
000118989 8564_ $$s6529353$$uhttps://zaguan.unizar.es/record/118989/files/texto_completo.pdf$$yVersión publicada
000118989 8564_ $$s2487264$$uhttps://zaguan.unizar.es/record/118989/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000118989 909CO $$ooai:zaguan.unizar.es:118989$$particulos$$pdriver
000118989 951__ $$a2024-03-18-15:24:56
000118989 980__ $$aARTICLE