The mechanism of hydrocarbon oxygenate reforming: C-C bond scission, carbon formation, and noble-metal-free oxide catalysts.
ChemSusChem
; 7(1): 77-81, 2014 Jan.
Article
em En
| MEDLINE
| ID: mdl-24203922
ABSTRACT
Towards a molecular understanding of the mechanism behind catalytic reforming of bioderived hydrocarbon oxygenates, we explore the C-C bond scission of C2 model compounds (acetic acid, ethanol, ethylene glycol) on ceria model catalysts of different complexity, with and without platinum. Synchrotron photoelectron spectroscopy reveals that the reaction pathway depends very specifically on both the reactant molecule and the catalyst surface. Whereas C-C bond scission on Pt sites and on oxygen vacancies involves intermittent surface carbon species, the reaction occurs without any carbon formation and deposition for ethylene glycol on CeO2(111).
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Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Platina
/
Cério
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Ácido Acético
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Etilenoglicol
/
Etanol
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article