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Title

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

AuthorsAlegre Gresa, Cinthia; Gálvez Parruca, María Elena; Moliner Álvarez, Rafael; Lázaro Elorri, María Jesús
KeywordsCarbon xerogel
Platinum-ruthenium catalyst
Methanol oxidation reaction
Sulfite complex method
Issue Date23-Sep-2013
PublisherMultidisciplinary Digital Publishing Institute
CitationCatalysts
AbstractHighly 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.
Description13 páginas, 5 figuras, 4 tablas.
Publisher version (URL)http://dx.doi.org/10.3390/catal3030744
URIhttp://hdl.handle.net/10261/94290
DOI10.3390/catal3030744
ISSN2073-4344
E-ISSN2073-4344
Appears in Collections:(ICB) Artículos
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