2015-Sustainable Industrial Processing Summit
SIPS 2015 Volume 9: Physics, Advanced Materials, Multifunctional Materials

Editors:Kongoli F, Dubois JM, Gaudry E, Fournee V, Marquis F
Publisher:Flogen Star OUTREACH
Publication Year:2015
Pages:275 pages
ISBN:978-1-987820-32-4
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
CD-SIPS2015_Volume
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    Ethanol Oxidation at Platinum-Rare Earth Alloys

    Joana Lourenco1; Diogo Santos1; Cesar Sequeira1; Daniele Maccio2; Adriana Saccone2;
    1INSTITUTO SUPERIOR TECNICO, UNIVERSIDADE DE LISBOA, Lisbon, Portugal; 2, Genova, Italy;
    Type of Paper: Regular
    Id Paper: 369
    Topic: 21

    Abstract:

    Direct alcohol fuel cells (DAFCs) are promising devices to power portable applications, and ethanol is considered one of the most interesting fuels in this field. In this work, platinum-rare earth (Pt-RE) binary alloys (with RE = Ce, Sm, Dy, Ho) with at least 50 at.% RE, were produced and studied for ethanol oxidation in alkaline medium. Their electrocatalytic performance is evaluated using cyclic voltammetry, with several ethanol concentrations [0.2 - 0.8 M], in the temperature range 25 - 45 ºC. Kinetic parameters such as number of exchanged electrons, transfer coefficients and reaction order are determined. Pt-RE electrodes showed higher current densities for ethanol oxidation reaction than Pt electrode.

    Keywords:

    ethanol electrooxidation; Pt-RE alloys; direct ethanol fuel cell

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    Cite this article as:

    Lourenco J, Santos D, Sequeira C, Maccio D, Saccone A. Ethanol Oxidation at Platinum-Rare Earth Alloys. In: Kongoli F, Dubois JM, Gaudry E, Fournee V, Marquis F, editors. Sustainable Industrial Processing Summit SIPS 2015 Volume 9: Physics, Advanced Materials, Multifunctional Materials. Volume 9. Montreal(Canada): FLOGEN Star Outreach. 2015. p. 243-250.