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Comparison between ultrathin films of YSZ deposited at the solid oxide fuel cell cathode/electrolyte interface by atomic layer deposition, dip-coating or sputtering

Benamira, Messaoud and Ringuede, Armelle and Cassir, Michel and Horwat, David and Pierson, Jean-François and Lenormand, Pascal and Ansart, Florence and Bassat, Jean-Marc and Fullenwarth, Julien Comparison between ultrathin films of YSZ deposited at the solid oxide fuel cell cathode/electrolyte interface by atomic layer deposition, dip-coating or sputtering. (2009) Open Fuels and Energy Science Journal, 2 (1). 87-99. ISSN 1876-973X

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Official URL: http://dx.doi.org/10.2174/1876973X01002010087

Abstract

The effect of an 80 nm YSZ interfacial layer, deposited onto a YSZ pellet by different techniques (dip-coating, sputtering and atomic layer deposition) at the SOFC cathode/electrolyte interface to allow a maximum adhesion of the thick cathode layer, was thoroughly analysed. The LSM cathode was deposited on the solid electrolyte by painting and sintered in air at 1200°C for 2 h. The morphological and structural analyses of the samples were performed by scanning electron microscopy and X-ray diffraction; their electrical properties were examined between 390 and 700°C by electrochemical impedance spectroscopy. The impedance responses showed three different contributions. The highfrequency arc is attributed to the YSZ electrolyte. The electrode processes associated with the medium- and low frequency arcs were discussed. The electrochemical performance was influenced by the microstructure at the electrode/electrolyte interface.

Item Type:Article
Additional Information:Thanks to Bentham Open. The original article can be found at Open Fuels and Energy Science Journal website: http://www.benthamscience.com/open/toefj/openaccess2.htm
HAL Id:hal-00862988
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Nationale Supérieure des Mines de Nancy - ENSMN (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Université de Bordeaux 1 (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Ecole supérieure de physique et de chimie industrielles ParisTech - ESPCI (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:18 Sep 2013 06:48

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