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Preparation of Ni–YSZ thin and thick films on metallic interconnects as cell supports. Applications as anode for SOFC

Rieu, Mathilde and Lenormand, Pascal and Ansart, Florence and Maury, Francis and Fullenwarth, Julien and Zahid, Mohsine Preparation of Ni–YSZ thin and thick films on metallic interconnects as cell supports. Applications as anode for SOFC. (2008) Journal of Sol-Gel Science and Technology, vol. 45 (n° 3). pp. 307-313. ISSN 0928-0707

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Official URL: http://dx.doi.org/10.1007/s10971-008-1689-0

Abstract

In this work, we propose the preparation of a duplex anodic layer composed of both a thin (100 nm) and a thick film (10 lm) with Ni–YSZ material. The support of this anode is a metallic substrate, which is the interconnect of the SOFC unit cell. The metallic support limits the temperature of thermal treatment at 800 C to keep a good interconnect mechanical behaviour and to reduce corrosion. We have chosen to elaborate anodic coatings by sol–gel route coupled with dip-coating process, which are low cost techniques and allow working with moderate temperatures. Thin films are obtained by dipping interconnect substrate into a sol, and thick films into an optimized slurry. After thermal treatment at only 800 C, anodic coatings are adherent and homogeneous. Thin films have compact microstructures that confer ceramic protective barrier on metal surface. Further coatings of 10 lm thick are porous and constitute the active anodic material.

Item Type:Article
Additional Information:Thanks to Springer Verlag editor. The definitive version is available at http://www.springerlink.com The original PDF of the article can be found at Journal of Sol-Gel Science and Technology website : http://www.springerlink.com/content/qm73m16427lt6070/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > EDF (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Ecole Nationale Supérieure de Chimie et de Physique de Bordeaux - ENSCPB (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > European Institute for Energy Research - EIFER (GERMANY)
Other partners > Universität Karlsruhe (GERMANY)
Other partners > Université de Bordeaux 1 (FRANCE)
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Deposited By: Celine Cabaup
Deposited On:23 Apr 2009 12:17

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