Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions
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Título: | Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions |
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Autor/es: | Sevilla Solís, Marta | Sanchis Bermúdez, Carlos | Valdés-Solís Iglesias, Teresa | Morallon, Emilia | Fuertes Arias, Antonio Benito |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Materiales | Instituto Nacional del Carbón (España) |
Palabras clave: | Fuel cell | Platinum nanoparticles | Carbon nanocoils | Electrocatalysis |
Área/s de conocimiento: | Química Física |
Fecha de creación: | jul-2008 |
Fecha de publicación: | mar-2009 |
Editor: | Elsevier |
Cita bibliográfica: | SEVILLA SOLÍS, Marta, et al. “Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions”. Electrochimica Acta. Vol. 54, Issue 8 (1 March 2009). ISSN 0872-1904, pp. 2234-2238 |
Resumen: | Highly graphitic carbon nanocoils (GCNC) were synthesized through the catalytic graphitization of carbon microspheres obtained by the hydrothermal carbonization of different saccharides (sucrose, glucose and starch) andwere used as a support for Pt nanoparticles. The Pt nanoparticleswere deposited by means of a polymer mediated-polyolmethod. The Pt catalysts were characterized both physically (XRD, TEM, HRTEM and XPS) and electrochemically (electrooxidation of methanol in an acid medium). The electrocatalysts thus prepared show a high dispersion of Pt nanoparticles, with diameters in the 3.0–3.3nm range and a very narrow particle size distribution. These catalytic systems possess high electroactive Pt surface areas (up to 85m2 g−1 Pt) and they exhibit large catalytic activities towards methanol electrooxidation (up to 201Ag−1 Pt). Moreover, they have a high resistance against oxidation, which is considerably greater than that of the Pt/Vulcan system. |
Patrocinador/es: | Spanish MCyT (MAT2008-00407, MAT2007-60621 and FEDER). |
URI: | http://hdl.handle.net/10045/10522 |
ISSN: | 0872-1904 |
DOI: | 10.1016/j.electacta.2008.10.042 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.electacta.2008.10.042 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas |
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Electrochimica_Acta_54_(2009)_2234-2238_Pt-C.pdf | Versión final (acceso restringido) | 614,92 kB | Adobe PDF | Abrir Solicitar una copia |
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