Oxygen reduction on porous Ln2NiO4+δ electrodes

Mauvy, Fabrice; Lalanne, Cécile; Bassat, Jean‐Marc; Grenier, Jean‐Claude; Zhao, Hai Yan; Dordor, P.; Stevens, Philippe

doi:10.1016/j.jeurceramsoc.2005.03.120

Cited by 133 publications

(65 citation statements)

References 8 publications

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“…When the SOFC stack is operated at the intermediate temperatures, the rate of the electrochemical reaction is rapidly decreased at electrodes, in particular, at cathode, which can results in the decrease in the performance of the cell. Recently, researches regarding the new cathode material showing high catalytic activity in the intermediate temperature range (650 to 800°C) have been actively carried out [3,4].…”

Section: Introductionmentioning

confidence: 99%

Properties of Copper Doped Neodymium Nickelate Oxide as Cathode Material for Solid Oxide Fuel Cells

Lee¹,

Choe²,

Hwang³

2016

Archives of Metallurgy and Materials

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Mixed ionic and electronic conducting K2NiF4-type oxide, Nd2Ni1-xCuxO4+δ (x=0~1) powders were synthesized by solid state reaction technique and solid oxide fuel cells consisting of a Nd2Ni1-xCuxO4+δ cathode, a Ni-YSZ anode and ScSZ as an electrolyte were fabricated. The effect of copper substitution for nickel on the electrical and electrochemical properties was examined. Small amount of copper doping (x=0.2) resulted in the increased electrical conductivity and decreased polarization resistance. It appears that this phenomenon was associated with the high mean valence of nickel and copper and the resulting excess oxygen (δ). It was found that power densities of the cell with the Nd2Ni1-xCuxO4+δ (x=0.1 and 0.2) cathode were higher than that of the cell with the Nd2NiO4+δ cathode.

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Section: Introductionmentioning

confidence: 99%

Properties of Copper Doped Neodymium Nickelate Oxide as Cathode Material for Solid Oxide Fuel Cells

Lee¹,

Choe²,

Hwang³

2016

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

show abstract

“…Studies have shown that materials with K2NiF4-type structure exhibited promising cathode properties in IT-SOFC system. Compared to their perovskite cousins, K2NiF4-type materials possess improved thermal stability, compatible thermal expansion coefficients with these commercially available electrolytes (YSZ, CGO, SDC et al), and applauding oxygen diffusion and surface exchange coefficients [7], [8], [9] and [10]. Mauvy et al studied Ln2NiO4+δ (Ln = La, Nd, Pr) series materials, and found Nd1.95NiO4 exhibited promising electrode properties.…”

Section: Introductionmentioning

confidence: 99%

“…Mauvy et al studied Ln2NiO4+δ (Ln = La, Nd, Pr) series materials, and found Nd1.95NiO4 exhibited promising electrode properties. The area-specific resistance (ASR) was 1.3 Ω cm 2 at 700 °C [10]. Li et al reported that the ASR of La1.7Sr0.3CuO4 cathode was as low as 0.16 Ω cm 2 at 700 °C in air [11].…”

Section: Introductionmentioning

confidence: 99%

Study on Sm1.8Ce0.2CuO4–Ce0.9Gd0.1O1.95 composite cathode materials for intermediate temperature solid oxide fuel cell

Sun¹,

Zhao²,

Li³

et al. 2011

International Journal of Hydrogen Energy

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Sm1.8Ce0.2CuO4-xCe0.9Gd0.1O1.95 (SCC-xCGO, x = 0-12 vol.%) composite cathodes supported on Ce0.9Gd0.1O1.95 (CGO) electrolyte are studied for applications in IT-SOFCs. Results show that Sm1.8Ce0.2CuO4 material is chemically compatible with Ce0.9Gd0.1O1.95 at 1000 °C. The composite electrode exhibits optimum microstructure and forms good contact with the electrolyte after sintering at 1000 °C for 4 h. The polarization resistance (Rp) reduces to the minimum value of 0.17 Ω cm 2 at 750 °C in air for SCC-CGO06 composite cathode. The relationship between Rp and oxygen partial pressure indicates that the reaction rate-limiting step is the surface diffusion of the dissociative adsorbed oxygen on the composite cathode. K Ke ey yw wo or rd ds s: : Solid oxide fuel cell (SOFC); composite cathode; Oxygen reduction reaction (ORR)

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“…Its electrocatalytic properties (surface exchange coefficient, k), oxygen transport properties (oxygen diffusion coefficient, D*) 6,7 and electrochemical properties have been previously reported 8 . This material already shows very interesting properties at 600 °C while the interfacial resistance between the cathode and the electrolyte has been identified as the limiting step in the process of oxygen reduction 9 . In order to overcome this problem, the authors have explored an original route to synthesize cathode nanostructured powders which could lead to interesting microstructures.…”

Section: Ultrasonic Spray Pyrolysis (Usp) Introductionmentioning

confidence: 99%

Nanopowder synthesis of the SOFC cathode material Nd2NiO4+δ by ultrasonic spray pyrolysis

et al. 2010

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Oxygen reduction on porous Ln2NiO4+δ electrodes

Cited by 133 publications

References 8 publications

Properties of Copper Doped Neodymium Nickelate Oxide as Cathode Material for Solid Oxide Fuel Cells

Properties of Copper Doped Neodymium Nickelate Oxide as Cathode Material for Solid Oxide Fuel Cells

Study on Sm1.8Ce0.2CuO4–Ce0.9Gd0.1O1.95 composite cathode materials for intermediate temperature solid oxide fuel cell

Nanopowder synthesis of the SOFC cathode material Nd2NiO4+δ by ultrasonic spray pyrolysis

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