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Titolo:
Reactions of ethanol over metal oxides
Autore:
Idriss, H; Seebauer, EG;
Indirizzi:
Univ Auckland, Dept Chem, Auckland, New Zealand Univ Auckland Auckland New Zealand nd, Dept Chem, Auckland, New Zealand Univ Illinois, Dept Chem Engn, Urbana, IL 61801 USA Univ Illinois Urbana IL USA 61801 s, Dept Chem Engn, Urbana, IL 61801 USA
Titolo Testata:
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
fascicolo: 1-2, volume: 152, anno: 2000,
pagine: 201 - 212
SICI:
1381-1169(20000301)152:1-2<201:ROEOMO>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
TEMPERATURE-PROGRAMMED DESORPTION; SINGLE-CRYSTAL SURFACES; SCANNING TUNNELING MICROSCOPY; OXIDATIVE DEHYDROGENATION; ALIPHATIC-ALCOHOLS; PROBE MOLECULES; MGO SURFACES; CATALYSTS; METHANOL; DECOMPOSITION;
Keywords:
reactions; ethanol; metal oxides;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
72
Recensione:
Indirizzi per estratti:
Indirizzo: Idriss, H Univ Auckland, Dept Chem, Private Bag 92019, Auckland, New Zealand Univ Auckland Private Bag 92019 Auckland New Zealand w Zealand
Citazione:
H. Idriss e E.G. Seebauer, "Reactions of ethanol over metal oxides", J MOL CAT A, 152(1-2), 2000, pp. 201-212

Abstract

The reaction of ethanol over a series of oxides (Fe2O3, Fe2O3/CaO, Fe3O4, TiO2, CaO, and SiO2) has been investigated. The main reaction product in all cases is acetaldehyde, with secondary products acetone and ethyl acetate. At 473 K, the rate Constant k decreases according to the series Fe2O3 > Fe3O4 > CaO > TiO2 >> SiO2. Titration of basic sites by CO2 adsorption at room temperature shows that the reaction rate can be successfully normalised by basic site density for oxides that adsorb CO2 except for CaO. Acetone production, presumably via acetate ketonization, is highest over TiO2 while ethyl acetate formation, by Tishchenko reaction, is highest over Fe2O3. (C) 2000 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 05/04/20 alle ore 13:22:14