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...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2014 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/33610 |
| Acceso en línea: | http://hdl.handle.net/11336/33610 |
| Access Level: | acceso abierto |
| Palabra clave: | Macroporous Porous Carbon Direct Methanol Fuel Cells Methanol Electro-Oxidation Ptru Electrocatalysts Differential Electrochemical Mass Spectrometry https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
| Sumario: | 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). |
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