Comparison between ultrathin films of YSZ deposited at the solid oxide fuel cell cathode/electrolyte interface by atomic layer deposition, dip-coating or sputtering - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Open Fuels and Energy Science Journal Année : 2009

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

Résumé

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.
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hal-00862988 , version 1 (18-09-2013)

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Messaoud Benamira, Armelle Ringuede, Michel Cassir, David Horwat, Jean-François Pierson, et al.. Comparison between ultrathin films of YSZ deposited at the solid oxide fuel cell cathode/electrolyte interface by atomic layer deposition, dip-coating or sputtering. Open Fuels and Energy Science Journal, 2009, 2, pp.87-99. ⟨10.2174/1876973X01002010087⟩. ⟨hal-00862988⟩
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