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| Título: | A polyoxometalate-assisted approach for synthesis of Pd nanoparticles on graphene nanosheets: synergistic behaviour for enhanced electrocatalytic activity |
Autor: | Ahmadpour, Ali; Mitchell, Scott G. CSIC ORCID; Fuente, Jesús M. de la CSIC ORCID | Fecha de publicación: | feb-2015 | Editor: | Royal Society of Chemistry (UK) | Citación: | RSC Advances 5(31): 24319-24326 (2015) | Resumen: | A polyoxometalate (POM) assisted approach has been employed to prepare a nanohybrid of Pd nanoparticles (PdNPs) and graphene nanosheets (GNSs). The Keggin-type POM, phosphomolybdic acid (PMo12), was applied to serve as both reducing and stabilising agent. The as-prepared nanohybrid (Pd/PMo12/GNSs) was comprehensively characterised using transmission electron microscopy and X-ray diffraction analysis. The synergistic behaviour of PdNPs, PMo12 and GNSs in the nanohybrid leads to elevated electrocatalytic property for ethanol oxidation. Moreover, the Pd/PMo12/GNSs nanohybrid was activated by applying a sufficiently negative potential which plays a key role in promoting the electrocatalytic activity. The activated catalyst presents a superior performance towards ethanol electrooxidation reaction and shows better tolerance to poisoning species compared to Pd and Pt nanoparticles. The outstanding electrocatalytic activity of the tri-component (Pd/PMo12/GNSs) nanohybrid is discussed with relevance to its application in direct alcohol fuel cells (DAFCs). | Descripción: | et al. | Versión del editor: | http://dx.doi.org/10.1039/C5RA01084E | URI: | http://hdl.handle.net/10261/121356 | DOI: | 10.1039/C5RA01084E | E-ISSN: | 2046-2069 |
| Aparece en las colecciones: | (ICMA) Artículos |
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| accesoRestringido.pdf | 15,38 kB | Adobe PDF |  Visualizar/Abrir |
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