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Electrochemical performance of a solid oxide fuel cell with an anode based on Cu–Ni/CeO2 for methane direct oxidation

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 2014 Spain English Publisher:Elsevier BVJournal:Journal of Power Sources, volume 249, pages 520-526 (issn: 0378-7753,

Authors: Hornés, Aitor; Escudero, María José; Daza Bertrand, Loreto; Martínez Arias, Arturo;

doi: 10.1016/j.jpowsour.2013.05.159

handle: 10261/186370

Electrochemical performance of a solid oxide fuel cell with an anode based on Cu–Ni/CeO2 for methane direct oxidation

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Abstract

A CuNi–CeO2/YSZ/LSF solid oxide fuel cell has been fabricated and tested with respect to its electrochemical activity for direct oxidation of dry methane. The electrodes have been prepared by impregnation of corresponding porous YSZ layers, using reverse microemulsions as impregnating medium for the anode (constituted by Cu–Ni at 1:1 atomic ratio in combination with CeO2). On the basis of I–V electrochemical testing complemented by impedance spectroscopy (IS) measurements it is shown the ability of the SOFC for direct oxidation of methane in a rather stable way. Differences in the behavior as a function of operating temperature (1023–1073 K) are also revealed and examined on the basis of analysis of IS spectra.

A.H. thanks the Ministerio de Educación y Ciencia (MEC) for an FPU Ph.D. grant under which his contribution to this work was done. Thanks are due to the Comunidad de Madrid (project DIVERCEL S2009/ENE-1475) for financial support. Support from EU COST CM1104 action is also acknowledged.

Peer Reviewed

Country

Spain

Related Organizations

Spanish National Research Council
Spain
Complutense University of Madrid
Spain
Instituto de Catálisis y Petroleoquímica
Spain

Keywords

I–V curves, CuNi–CeO2/YSZ/LSF SOFC, Direct CH4 oxidation, Impedance spectra

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