Electrodes for solid oxide fuel cells based on infiltration of Co-based materials

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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The electrochemical performance of cathodes produced by infiltration of nitrates corresponding to the nominal compositions Co3O4, LaCoO3, and La0.6Sr0.4Co1.05O3−δ into porous backbones of Ce0.9Gd0.1O1.95 has been studied. Characterization by electrochemical impedance spectroscopy at 600◦C in air revealed that the lowest electrode polarization (Rp) value is obtained for La0.6Sr0.4Co1.05O3−δ (0.062cm2), followed by LaCoO3 (0.079cm2), andCo3O4-infiltrated cathodes (0.27cm2). The surprisingly good performance of LaCoO3- and Co3O4-infiltrated cathodes demonstrate the peculiarities encountered at the nanoscale and raise questions on the necessity of Sr doping if the electrocatalyst is formed as nanoparticles using the infiltration technique. ©2012 The Electrochemical Society
Original languageEnglish
JournalElectrochemical and Solid-State Letters
Issue number4
Pages (from-to)B54-B56
StatePublished - 2012

Bibliographical note

Copyright The Electrochemical Society, Inc. [2012]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

CitationsWeb of Science® Times Cited: 16
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