INIFTA 05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
The electro-oxidation of isotopically labeled glycerol on platinum: New information on C-C bond cleavage and CO2 production
Autor/es:
FERNÁNDEZ P. S; MARTINS M. E.; MARTINS C. A.; CÂMARA G. A.
Revista:
ELECTROCHEMISTRY COMMUNICATIONS
Editorial:
ELSEVIER SCIENCE INC
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 15 p. 14 - 17
ISSN:
1388-2481
Resumen:
In this work we investigate the electro-oxidation of glycerol reaction on polycrystalline platinum in acidic media. By using in situ FTIR and isotopically labeled glycerol (13CH2OH?12CHOH?13CH2OH) we demonstrate the co-existence of 13CO2 and 12CO2 as products of electro-oxidation. Results indicate that glycerol completely dissociates on Pt surfaces and that both groups contribute to the production of CO2. Moreover, terminal 13CH2OH groups are easier to electro-oxidize than the central group, which is interpreted in terms of a more favorable position of ?13CH2OH groups to react with Pt?OHad species.
