Synthesis of Pt Nanoparticles in Water-in-Oil Microemulsion: Effect of HCl on Their Surface Structure
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http://hdl.handle.net/10045/37257
Títol: | Synthesis of Pt Nanoparticles in Water-in-Oil Microemulsion: Effect of HCl on Their Surface Structure |
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Autors: | Martínez-Rodríguez, Roberto A. | Vidal-Iglesias, Francisco J. | Solla-Gullón, José | Cabrera, Carlos R. | Feliu, Juan M. |
Grups d'investigació o GITE: | Electroquímica de Superficies | Electroquímica Aplicada y Electrocatálisis |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Paraules clau: | Synthesis | Pt nanoparticles | Water-in-oil microemulsion | HCl | Surface structure |
Àrees de coneixement: | Química Física |
Data de publicació: | 14-de gener-2014 |
Editor: | American Chemical Society |
Citació bibliogràfica: | Journal of the American Chemical Society. 2014, 136(4): 1280-1283. doi:10.1021/ja411939d |
Resum: | The synthesis of shape-controlled nanoparticles is currently a hot research topic. However, from an applied point of view, there is still a lack of easy, cheap, and scalable methodologies. In this communication we report, for the first time, the synthesis of cubic platinum nanoparticles with a very high yield using a water-in-oil microemulsion method, which unlike others, such as the colloidal method, fulfills the previous requirements. This shape/surface structure control is determined by the concentration of HCl in the water phase of the microemulsion. The results reported here show that the optimal HCl percentage in the water phase is about 25% to obtain the highest amount of cubic nanostructures. Ammonia electro-oxidation is used as a surface structure sensitive reaction to illustrate HCl surface structure effects. Moreover, in situ electrochemical characterization has been performed to study the nanoparticle surface structure. |
Patrocinadors: | This work has been financially supported by the MCINN-FEDER (Spain) (project CTQ 2010-16271), by the Generalitat Valenciana (project PROMETEO/2009/045), and in part by the NASA-URC Grant No. NNX10AQ17A and NSF-NSEC Center for Hierarchical Manufacturing Grant No. CHM-CMMI-0531171. R.M.-R. is grateful to the Becas Iberoamérica, Santander Universidades-España 2012, and PR-LSAMP Bridge to Doctorate Fellowship programs. |
URI: | http://hdl.handle.net/10045/37257 |
ISSN: | 0002-7863 (Print) | 1520-5126 (Online) |
DOI: | 10.1021/ja411939d |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2014 American Chemical Society |
Revisió científica: | si |
Versió de l'editor: | http://dx.doi.org/10.1021/ja411939d |
Apareix a la col·lecció: | INV - LEQA - Artículos de Revistas INV - EQSUP - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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2014_Martinez-Rodriguez_etal_JACS_final.pdf | Versión final (acceso restringido) | 1,72 MB | Adobe PDF | Obrir Sol·licitar una còpia |
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