Methane conversion on Pt-Ru nanoparticles alloy supported on hydrothermal carbon

Matos, J.; Rosales M.; Demir-Cakan, R; Titirici, MM

Keywords: alloys, carbon-supported catalysts, Methane conversion, Hydrothermal carbon

Abstract

The catalytic activity of a novel nanoparticulate Pt-Ru alloy supported on hydrothermal carbon for dry methane reforming and for the partial oxidation of methane was studied. Upon removal of the carbon support by calcination under air, a mixture of Pt(0) and Ru oxide was obtained and their catalytic properties have been as well investigated for the same reactions. Characterization was performed by N(2) adsorption-desorption isotherms (BET surface area and BJH pore size distribution), crystalline structure (XRD) and morphology (scanning and transmission electron microscopy, SEM and TEM). For dry methane reforming the initial activity in both samples was high but the catalysts were readily deactivated in time. Regarding the partial oxidation of methane, the Pt-Ru alloy supported on hydrothermal carbon showed a lower initial activity but a better catalytic stability than its oxidized analogous, suggesting that hydrothermal carbon-supported Pt-Ru alloys could be employed as a potential catalyst in hydrocarbon catalytic oxidations. (C) 2010 Elsevier B.V. All rights reserved.

Más información

Título según WOS: Methane conversion on Pt-Ru nanoparticles alloy supported on hydrothermal carbon
Título de la Revista: APPLIED CATALYSIS A-GENERAL
Volumen: 386
Número: 1-2
Editorial: ELSEVIER SCIENCE BV
Fecha de publicación: 2010
Página de inicio: 140
Página final: 146
Idioma: English
DOI:

10.1016/j.apcata.2010.07.047

Notas: ISI