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Titolo:
Thiophene conversion and ethanol oxidation on SiO2-supported 12-PMoV-mixedheteropoly compounds
Autore:
Spojakina, AA; Kostova, NG; Sow, B; Stamenova, MW; Jiratova, K;
Indirizzi:
Bulgarian Acad Sci, Inst Catalysis, Sofia 1113, Bulgaria Bulgarian Acad Sci Sofia Bulgaria 1113 t Catalysis, Sofia 1113, Bulgaria Acad Sci Czech Republ, Inst Chem Proc Fundamentals, Prague 16502, Czech Republic Acad Sci Czech Republ Prague Czech Republic 16502 16502, Czech Republic
Titolo Testata:
CATALYSIS TODAY
fascicolo: 2-4, volume: 65, anno: 2001,
pagine: 315 - 321
SICI:
0920-5861(20010220)65:2-4<315:TCAEOO>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLYBDOVANADOPHOSPHORIC ACIDS; CATALYSTS; VANADIUM;
Keywords:
heteropoly compounds; thiophene hydrodesulfurization; ethanol oxidation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Spojakina, AA Bulgarian Acad Sci, Inst Catalysis, Sofia 1113, Bulgaria Bulgarian Acad Sci Sofia Bulgaria 1113 ofia 1113, Bulgaria
Citazione:
A.A. Spojakina et al., "Thiophene conversion and ethanol oxidation on SiO2-supported 12-PMoV-mixedheteropoly compounds", CATAL TODAY, 65(2-4), 2001, pp. 315-321

Abstract

Surface properties of supported MoV heteropoly compounds and their activities in hydrodesulfurization of thiophene and oxidation of ethanol were studied. Vanadium incorporated into the phosphomolybdic acid anion increased extent of oxidative dehydrogenation of ethanol to acetaldehyde, whereas the catalyst with (VO)(2+) increased complete ethanol oxidation to CO2. The catalysts with (VO)(2+) or one V atom in the anion showed an increase in HDS activity. Vanadium in anion of phosphomolybdic acid also increased hydrogenation ability. Acidic sites of medium strength were proved to be the most suitable for ethanol oxidation, Such explicit dependence of thiophene hydrodesulfurization on any type of acidic sites was not confirmed. Activity order of supported MoV heteropoly compounds in HDS of thiophene correlated well with the amount of hydrogen consumed during TPR. (C) 2001 Elsevier Science B. V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 02:11:09