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Intermediate temperature SOFC single cell test using Nd1.95NiO4+δ as cathode

Lalanne, Cécile and Mauvy, Fabrice and Siebert, Elisabeth and Fontaine, Marie-Laure and Bassat, Jean-Marc and Ansart, Florence and Stevens, Philippe and Grenier, Jean-Claude Intermediate temperature SOFC single cell test using Nd1.95NiO4+δ as cathode. (2007) Journal of the European Ceramic Society, vol. 27 (n° 13 - 15). pp. 4195-4198. ISSN 0955-2219

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Official URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2007.02.144

Abstract

This work deals with SOFC single cell tests using neodymium nickelate Nd1.95NiO4+δ as cathode material. This MIEC oxide exhibits high values of both surface exchange coefficient (k) and oxygen diffusion coefficient (D*), as well as high electronic conductivity, which result in an enhanced electrochemical activity with respect to classical materials. The SOFC cells were fabricated from an anode-supported electrolyte half-cell provided by InDEC B.V. Corporation, with a 36mmdiameter. The Nd1.95NiO4+δ cathode was prepared as a two-stage electrode consisting of a thin interlayer of several hundred nanometers covered by a thicker layer of dozens microns. The Nd1.95NiO4+δ oxide powders were synthesized using different routes in order to reduce the final annealing temperature, and to subsequently obtain submicronic powders. I–V characteristics of the single cells were investigated under hydrogen–air conditions. The power densities versus current densities curves are reported and the results of impedance spectroscopy measurements performed under these operating conditions are discussed.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Journal of the European Ceramic Society website : http://www.sciencedirect.com/science/journal/09552219
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Ecole Nationale Supérieure de Chimie et de Physique de Bordeaux - ENSCPB (FRANCE)
Other partners > European Institute for Energy Research - EIFER (GERMANY)
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > EDF (FRANCE)
Other partners > Institut National Polytechnique de Grenoble (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Other partners > Université Joseph Fourier Grenoble 1 - UJF (FRANCE)
Other partners > Université de Bordeaux 1 (FRANCE)
Laboratory name:
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Deposited By:Celine Cabaup

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