Neodymium-deficient nickelate oxide Nd1.95NiO4+δas cathode material for anode-supported intermediate temperature solid oxide fuel cells

The neodymium-deficient nickelate Nd1.95NiO4+δ, mixed conducting K2NiF4-type oxide, was evaluated as cathode for solid oxide fuel cells. The electrochemical properties were investigated on planar Ni–YSZ anode-supported SOFC based on co-tape casted and co-fired HTceramix® cells. Using a layer of stro...

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Bibliographic Details
Published in:Journal of power sources 2008-12, Vol.185 (2), p.1218-1224
Main Authors: LALANNE, C, PROSPERI, G, BASSAT, J.-M, MAUVY, F, FOURCADE, S, STEVENS, P, ZAHID, M, DIETHELM, S, VAN HERLE, J, GRENIER, J.-C
Format: Article
Language:English
Subjects:
Applied sciences
Chemical Sciences
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Material chemistry
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Summary:The neodymium-deficient nickelate Nd1.95NiO4+δ, mixed conducting K2NiF4-type oxide, was evaluated as cathode for solid oxide fuel cells. The electrochemical properties were investigated on planar Ni–YSZ anode-supported SOFC based on co-tape casted and co-fired HTceramix® cells. Using a layer of strontium doped lanthanum cobaltite as current collector, a current density of 1.31 A cm−2 (at 0.70 V) was obtained at 800 °C using hydrogen fuel with small single cells, after optimizing the cathode sintering temperature. Impedance spectroscopy measurements were performed; the different resistive contributions and the values of the corresponding equivalent capacities are discussed.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2008.06.072