Electrochemical deposition of platinum nanoparticles on different carbon supports and conducting polymers
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Título: | Electrochemical deposition of platinum nanoparticles on different carbon supports and conducting polymers |
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Autor/es: | Domínguez Domínguez, Sonia | Arias Pardilla, Joaquín | Berenguer-Murcia, Ángel | Morallon, Emilia | Cazorla-Amorós, Diego |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros | Materiales Carbonosos y Medioambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Carbon supports | Conducting polymers | Electrodeposition | Platinum | Electrocatalysis |
Área/s de conocimiento: | Química Física |
Fecha de creación: | 2007 |
Fecha de publicación: | feb-2008 |
Editor: | Springer Netherlands |
Cita bibliográfica: | DOMÍNGUEZ DOMÍNGUEZ, Sonia, et al. “Electrochemical deposition of platinum nanoparticles on different carbon supports and conducting polymers”. Journal of Applied Electrochemistry. Vol. 38, No. 2 (Febr. 2008). ISSN 0021-891X, pp. 259-268 |
Resumen: | Electrodeposition of Pt nanoparticles under potentiostatic conditions was performed on several types of carbon electrode supports: commercial macroporous carbon (a three-dimensional electrode), glassy carbon and graphite. Conducting polymers (poly-aniline and poly-oaminophenol) were also used. The platinum nanoparticles were obtained by different Potential Step Deposition (PSD) methods in 5 mM H2PtCl6 + 0.5 M H2SO4 aqueous solutions. The effect of the final potential, time and number of steps on the quantity, distribution and size of the platinum nanoparticles was analysed. The mechanism of the electrochemical deposition of platinum was studied through the application of theoretical modelling. The progressive nucleation mechanism provided the closest agreement with the results obtained. In addition, the chemical state and morphology of the electrodeposited materials were determined by means of SEM, TEM and XPS. The results show that the carbon material structure has a strong influence on the Pt particle structure and this, in turn, affects the catalytic activity. |
Patrocinador/es: | Spanish Ministerio de Educación y Ciencia (Projects CTQ2006-08958/PPQ and MAT2004-1479) and the EU (FEDER). |
URI: | http://hdl.handle.net/10045/10477 |
ISSN: | 0021-891X (Print) | 1572-8838 (Online) |
DOI: | 10.1007/s10800-007-9435-9 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | The original publication is available at www.springerlink.com |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1007/s10800-007-9435-9 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas INV - MCMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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JAE38-08-259.pdf | Versión final (acceso restringido) | 592,2 kB | Adobe PDF | Abrir Solicitar una copia |
manuscript.pdf | Versión revisada (acceso libre) | 982,74 kB | Adobe PDF | Abrir Vista previa |
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