English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/91964
Título

Electrooxidation of formic acid on gold: An ATR-SEIRAS study of the role of adsorbed formate

AutorCuesta, Angel ; Cabello, G. ; Hartl, Fabian W.; Escudero-Escribano, María ; Vaz-Domínguez, C.; Kibler, Ludwig A..; Osawa, M.; Gutiérrez de la Fe, Claudio
Fecha de publicación2013
EditorElsevier
CitaciónCatalysis Today 202: 79- 86 (2013)
ResumenFormate was found to be the only adsorbed species detected with time-resolved ATR-SEIRAS during the electrooxidation of formic acid on Au in acidic media. No adsorbed CO was detected, since even in CO-saturated acidic solutions the adsorption of CO on gold is negligible. The onset of formic acid electrooxidation coincides with that of formate electroadsorption, pointing to bridge-bonded adsorbed formate as the reaction intermediate. Furthermore, at constant potential the current increases quadratically with the formate coverage, which indicates that the rate-determining step in the oxidation of adsorbed formate to CO2 is a bimolecular reaction between adjacent formate species. The rate of this reaction was unaffected by potential changes, which unequivocally confirms its chemical character.
URIhttp://hdl.handle.net/10261/91964
DOI10.1016/j.cattod.2012.04.022
Identificadoresdoi: 10.1016/j.cattod.2012.04.022
issn: 0920-5861
Aparece en las colecciones: (IQFR) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.