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The effects of oxidant gas composition on the polarization of porous LiCoO2 electrodes for the molten carbonate fuel cell
KTH, Superseded Departments, Chemical Engineering and Technology.ORCID iD: 0000-0002-2268-5042
KTH, Superseded Departments, Chemical Engineering and Technology.
1997 (English)In: Journal of the Electrochemical Society, ISSN 0013-4651, E-ISSN 1945-7111, Vol. 144, no 11, 3813-3818 p.Article in journal (Refereed) Published
Abstract [en]

Stationary polarization curves were obtained for porous lithium cobaltite cathodes under varying temperatures and oxidant compositions. The exchange current densities were determined from the slope at low overpotentials by means of numerical calculations, taking into account the current density distribution. Positive influences on the exchange current density were found both for the partial pressure of oxygen and carbon dioxide. The results are similar to earlier data obtained from measurements on NiO electrodes. The values are not consistent with either the peroxide mechanism or the superoxide mechanism, two mechanisms often proposed in the literature.

Place, publisher, year, edition, pages
1997. Vol. 144, no 11, 3813-3818 p.
Identifiers
URN: urn:nbn:se:kth:diva-12882ISI: A1997YF27200027OAI: oai:DiVA.org:kth-12882DiVA: diva2:319520
Note
QC 20100518Available from: 2010-05-18 Created: 2010-05-18 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Electrochemical performance of porous MCFC cathodes
Open this publication in new window or tab >>Electrochemical performance of porous MCFC cathodes
1997 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 1997. ix, 55 p.
Series
Trita-KET, ISSN 1104-3466
Keyword
molten carbonate fuel cell, MCFC cathode, LiCoO2, NiO, porous electrode, polarisation, performance, reaction mechanisms, conductivity
National Category
Chemical Engineering
Identifiers
urn:nbn:se:kth:diva-2473 (URN)99-2384406-4 (ISBN)
Public defence
1997-03-01, 00:00 (English)
Note
QC 20100511Available from: 2000-01-01 Created: 2000-01-01 Last updated: 2010-05-18Bibliographically approved

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Lagergren, Carina

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