MESGUICH, David; BASSAT, Jean-Marc.; AYMONIER, Cyril; BRÜLL, Annelise; DESSEMOND, Laurent; DJURADO, Elisabeth

doi:10.1016/j.electacta.2012.07.134

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MESGUICH, David
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

BASSAT, Jean-Marc.
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

AYMONIER, Cyril
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Electrochimica Acta. 2013, vol. 87, p. 330-335

Elsevier

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This paper is dedicated to the study of the relationship between the Nd2NiO4+δ powder micro-structural properties (especially particle size and crystallinity) and electrochemical properties when the oxide is used as SOFC cathode deposited on 8YSZ electrolyte coated with thin doped ceria. Nano-structured particles of Nd2NiO4+δ with controlled crystallinity, size and morphology have been synthesized using ultrasonic spray pyrolysis (USP). The series and polarization resistances measured on symmetrical half cells Nd2NiO4+δ/YDC/8YSZ/YDC/Nd2NiO4+δ are both found to be dependent on the cathode microstructure and present a similar evolution with temperature. The best results are obtained for highly crystalline cathode powders combined with a small particle size.< Leer menos

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Solid oxide fuel cell

Cathode

Mixed ionic and electronic conductor

Electrochemical impedance spectroscopy

Nickelates

Ultrasonic spray pyrolysis

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Influence of crystallinity and particle size on the electrochemical properties of spray pyrolyzed Nd2NiO4+δ powders

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