Macroporous carbon as support for PtRu catalysts

A high surface macroporous porous carbon (MPC) has been obtained by SiO2 nanoparticles template and further used as support for PtRu catalysts. MPC supported PtRu materials show an enhanced activity for methanol electrooxidation when compared with commercial catalysts. This observation is discussed in terms of reactant accessibility to active sites. The improved diffusion through the porous matrix influences not only methanol feeding, but also removal of reaction subproducts, as clearly shown by differential electrochemical mass spectrometry (DEMS).

Palabras clave: Macroporous Porous Carbon , Direct Methanol Fuel Cells , Methanol Electro-Oxidation , Ptru Electrocatalysts , Differential Electrochemical Mass Spectrometry

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

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URI: http://hdl.handle.net/11336/33610

DOI: http://dx.doi.org/10.1016/j.ijhydene.2013.06.085

URL: http://www.sciencedirect.com/science/article/pii/S036031991301584X

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Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA

Citación

Calderon, Juan Carlos; Baena Moncada, Angélica María; Rodriguez, Jose Luis; Pastor, Elena; Barbero, César Alfredo; Florez Montaño, Jonathan; et al.; Macroporous carbon as support for PtRu catalysts; Pergamon-Elsevier Science Ltd.; International Journal of Hydrogen Energy; 39; 8; 2-2014; 3964-3969

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