Carbon-supported shape-controlled Pt nanoparticle electrocatalysts for direct alcohol fuel cells

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Title: Carbon-supported shape-controlled Pt nanoparticle electrocatalysts for direct alcohol fuel cells
Authors: Figueiredo, Marta C. | Solla-Gullón, José | Vidal-Iglesias, Francisco J. | Nisula, Mikko | Feliu, Juan M. | Kallio, Tanja
Research Group/s: Electroquímica Aplicada y Electrocatálisis | Electroquímica de Superficies
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica
Keywords: Direct ethanol fuel cells | Shape controlled nanoparticles | Electrocatalysis
Knowledge Area: Química Física
Issue Date: Jun-2015
Publisher: Elsevier
Citation: Electrochemistry Communications. 2015, 55: 47-50. doi:10.1016/j.elecom.2015.03.019
Abstract: The demand for power sources alternative to fossil fuels makes urgent the development of more efficient electrocatalysts for fuel cells applications and the maximization of the performances of the existent ones. This work reports, for the first time, the use of carbon-supported shape-controlled Pt nanoparticles as anode catalysts in direct ethanol fuel cells. By using cubic Pt nanoparticles, on which (100) surface sites are predominant, the performance of the fuel cell can be increased from 14 to 24 mW per mg of Pt when compared with cuboctahedral nanoparticles. Moreover, the open circuit potential shifts about 50 mV toward more positive potentials. In comparison with commercially available Pt catalysts, the performance for the (100) preferentially oriented nanoparticles is about three times higher. The reported results evidence that, from an applied point of view, the effect of the surface structure/shape of the electrocatalysts can be also considered to improve the performance of real fuel cell systems.
Sponsor: The financial support from Aalto University is acknowledged.
ISSN: 1388-2481 (Print) | 1873-1902 (Online)
DOI: 10.1016/j.elecom.2015.03.019
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2015 Elsevier B.V.
Peer Review: si
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Appears in Collections:INV - EQSUP - Artículos de Revistas
INV - LEQA - Artículos de Revistas

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