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

The neodymium-deficient nickelate Nd1.95NiO4+i, 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 1.31Acm−2 (at 0.70V) 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.

[1]  J. Bassat,et al.  Oxygen reduction on porous Ln2NiO4+δ electrodes , 2005 .

[2]  I. Davidson,et al.  A comparative study of the Ruddlesden-Popper series, Lan+1NinO3n+1 (n = 1, 2 and 3), for solid-oxide fuel-cell cathode applications , 2006 .

[3]  S. Barnett,et al.  Bias Sputter Deposition of Dense Yttria‐Stabilized Zirconia Films on Porous Substrates , 1995 .

[4]  Armelle Ringuedé,et al.  Oxygen reaction on strontium-doped lanthanum cobaltite dense electrodes at intermediate temperatures , 2001 .

[5]  Raphaël Ihringer,et al.  Anode supported solid oxide fuel cells with screen-printed cathodes , 2001 .

[6]  A. Hagen,et al.  Structural properties and electrochemical performance of strontium- and nickel-substituted lanthanum cobaltite , 2008 .

[7]  John A. Kilner,et al.  Optimisation of composite cathodes for intermediate temperature SOFC applications , 1999 .

[8]  M. Pouchard,et al.  Anisotropic ionic transport properties in La2NiO4+δ single crystals , 2004 .

[9]  Andreas Mai,et al.  Performance of LSCF cathodes in cell tests , 2006 .

[10]  Y. Takeda,et al.  Cathodic Polarization Phenomena of Perovskite Oxide Electrodes with Stabilized Zirconia , 1987 .

[11]  A. Kovalevsky,et al.  Ionic transport in oxygen-hyperstoichiometric phases with K2NiF4-type structure , 2001 .

[12]  Zongping Shao,et al.  A high-performance cathode for the next generation of solid-oxide fuel cells , 2004, Nature.

[13]  Sano,et al.  A low-operating-temperature solid oxide fuel cell in hydrocarbon-Air mixtures , 2000, Science.

[14]  S. Chan,et al.  Performance evaluation of anode-supported solid oxide fuel cells with thin film YSZ electrolyte , 2004 .

[15]  Jean-Marc Bassat,et al.  Oxygen electrode reaction on Nd2NiO4+δ cathode materials: impedance spectroscopy study , 2003 .

[16]  J. Bassat,et al.  Oxygen diffusion and transport properties in non-stoichiometric Ln2 − xNiO4 + δ oxides , 2005 .

[17]  J. Kilner,et al.  Oxygen transport in La1−xSrxMn1−yCoyO3±δ perovskites: Part I. Oxygen tracer diffusion , 1998 .