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Structural and Electrical Properties of Gadolinia-doped Ceria Mixed with Alkali Earth Carbonates for SOFC Applications
ENSCP, Paris. (Laboratoire d'Electrochimie et de Chimie Analytique)
ENSCP, Paris. (Laboratoire d'Electrochimie et de Chimie Analytique)
ENSCP, Paris. (Laboratoire d'Electrochimie et de Chimie Analytique)
UMR 8181 CNRS. (Unité de Catalyse et de Chimie du Solide)
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2007 (English)In: SOLID OXIDE FUEL CELLS 10 (SOFC-X), PTS 1 AND 2 / [ed] Eguchi, K; Singhai, SC; Yokokawa, H; Mizusaki, H, 2007, 2261-2268 p.Conference paper, Published paper (Refereed)
Abstract [en]

The properties of composite materials based on mixtures of gadolinium-doped ceria (GDC) and Li(2)CO(3)-K(2)CO(3) are analyzed as potential SOFC electrolytes. In a temperature range higher than 500 degrees C, their ionic conductivity is significantly higher than for single GDC. Discontinuities were found in the conductivity Arrhenius diagram (sigma vs. 1/T) around the melting point of the carbonate mixture (490 degrees C), showing, at least partially, the contribution of molten carbonates. At this stage, precise mechanisms are still under analysis.

Place, publisher, year, edition, pages
2007. 2261-2268 p.
Series
ECS Transactions, ISSN 1938-5862
Keyword [en]
LOW-TEMPERATURE SOFCS, OXIDE FUEL-CELLS, COMPOSITE ELECTROLYTE
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-50222DOI: 10.1149/1.2729343ISI: 000271968900278Scopus ID: 2-s2.0-45249116579ISBN: 978-1-56677-554-0 (print)OAI: oai:DiVA.org:kth-50222DiVA: diva2:461321
Conference
10th International Symposium on Solid Oxide Fuel Cells. Nara, JAPAN. JUN 03-08, 2007
Note
QC 20111208Available from: 2011-12-02 Created: 2011-12-02 Last updated: 2011-12-08Bibliographically approved

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Lagergren, Carina

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