INIFTA 05425
INSTITUTO DE INVESTIGACIONES FISICO-QUIMICAS TEORICAS Y APLICADAS
Unidad Ejecutora - UE
artículos
Título:
Electrooxidation of glycerol on platinum nanoparticles: Decipheringhow the position of each carbon affects the oxidation pathways
Autor/es:
PABLO S. FERNÁNDEZ; CAUÊ A. MARTINS; MARÍA E. MARTINS ; GIUSEPPE A. CAMARA
Revista:
ELECTROCHIMICA ACTA
Editorial:
PERGAMON-ELSEVIER SCIENCE LTD
Referencias:
Lugar: Amsterdam; Año: 2013 vol. 112 p. 686 - 691
ISSN:
0013-4686
Resumen:
In this work we investigate the electrooxidation of glycerol on platinum nanoparticles in acidic media. Byusing in situ FTIR and isotopically labeled glycerol (13CH2OH12CHOH13CH2OH) we follow the reactionduring a full cycle of oxidation and unravel the role of some important species on the electrooxidationpathways. Results indicate that terminal (13CH2OH) and central (12CHOH ) groups are able to formadsorbed CO and that both contribute to the production of CO2, although the terminal groups are easier tobe oxidized than the central one, probably due to the steric effect provoked by13CH2OH which preventsthe oxidation of12CHOH . Moreover, glyceraldehyde seems to be an important intermediate for thegeneration of glyceric acid.
