Electrochemical deposition of platinum nanoparticles on different carbon supports and conducting polymers
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http://hdl.handle.net/10045/10477
Títol: | Electrochemical deposition of platinum nanoparticles on different carbon supports and conducting polymers |
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Autors: | Domínguez Domínguez, Sonia | Arias Pardilla, Joaquín | Berenguer-Murcia, Ángel | Morallon, Emilia | Cazorla-Amorós, Diego |
Grups d'investigació o GITE: | Electrocatálisis y Electroquímica de Polímeros | Materiales Carbonosos y Medioambiente |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Paraules clau: | Carbon supports | Conducting polymers | Electrodeposition | Platinum | Electrocatalysis |
Àrees de coneixement: | Química Física |
Data de creació: | 2007 |
Data de publicació: | de febrer-2008 |
Editor: | Springer Netherlands |
Citació bibliogràfica: | 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 |
Resum: | 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. |
Patrocinadors: | 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 |
Tipus: | info:eu-repo/semantics/article |
Drets: | The original publication is available at www.springerlink.com |
Revisió científica: | si |
Versió de l'editor: | http://dx.doi.org/10.1007/s10800-007-9435-9 |
Apareix a la col·lecció: | INV - GEPE - Artículos de Revistas INV - MCMA - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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JAE38-08-259.pdf | Versión final (acceso restringido) | 592,2 kB | Adobe PDF | Obrir Sol·licitar una còpia |
manuscript.pdf | Versión revisada (acceso libre) | 982,74 kB | Adobe PDF | Obrir Vista prèvia |
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