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Título

PtRu nanoparticles deposited by the sulfite complex method on highly porous carbon xerogels: effect of the thermal treatment

Autor Alegre Gresa, Cinthia; Gálvez Parruca, María Elena; Moliner Álvarez, Rafael; Lázaro Elorri, María Jesús
Palabras clave Carbon xerogel
Platinum-ruthenium catalyst
Methanol oxidation reaction
Sulfite complex method
Fecha de publicación 23-sep-2013
EditorMultidisciplinary Digital Publishing Institute
Citación Catalysts
ResumenHighly porous carbon xerogels (CXGs) were synthesized to be used as support for PtRu nanoparticles. Metal particles were deposited on CXGs by means of the sulfite complex method for the first time. Catalysts so-obtained were submitted to thermal treatment in H2, at different temperatures, in order to increase the particle size and thus the intrinsic activity. Physico-chemical characterizations included N2 physisorption, X-Ray diffraction, X-ray photoelectron spectroscopy and transmission electron microscopy. Highly dispersed alloyed PtRu particles were obtained, with crystal sizes ranging from 1.6 to 2.0 nm. PtRu-catalysts were tested in half-cell for the methanol oxidation reaction (MOR). The resulting thermal treatment was effective in increasing both particle size and catalytic activity toward MOR.
Descripción 13 páginas .-5 figuras.- 4 tablas.Recibido: 16 July 2013.- Revisado: 6 September 2013.-Aceptado: 10 September 2013.- Publicado:23 September 2013
Versión del editorhttp://dx.doi.org/10.3390/catal3030744
URI http://hdl.handle.net/10261/94290
DOI10.3390/catal3030744
ISSN2073-4344
E-ISSN2073-4344
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