Sevilla Solís, Marta, Sanchis Bermúdez, Carlos, Valdés-Solís Iglesias, Teresa, Morallon, Emilia, Fuertes Arias, Antonio Benito
Highly dispersed platinum nanoparticles on carbon nanocoils and their electrocatalytic performance for fuel cell reactions
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
URI: http://hdl.handle.net/10045/10522
DOI: 10.1016/j.electacta.2008.10.042
ISSN: 0872-1904
Abstract: 
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.
Keywords:Fuel cell, Platinum nanoparticles, Carbon nanocoils, Electrocatalysis
Elsevier
info:eu-repo/semantics/article