Perovskite and A2MO4-type oxides as new cathode materials for protonic solid oxide fuel cells

Dailly, Julian; Fourcade, Sébastien; Largeteau, Alain; Mauvy, Fabrice; Grenier, Jean‐Claude; Marrony, Mathieu

doi:10.1016/j.electacta.2010.05.034

Cited by 161 publications

(114 citation statements)

References 39 publications

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“…[24][25][26][27] In fact, various researchers have already explored BSCF as the cathode for proton conducting IT-SOFC and obtained varying degrees of success. 18,20,[28][29][30] However, there are still many unknown aspects left. For example, the exact influence of water vapor on the cathodic process for such proton conducting SOFC, especially at even lower temperatures of ∼400-500…”

Section: 2mentioning

confidence: 99%

“…4 . [18][19][20][21][22] Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ (BSCF), which is considered to be one of the most active cathode materials for oxide ion conducting IT-SOFC, 23 could also be a promising cathode material for proton conducting IT-SOFC because of its capability of undertaking significant amount of water and becoming proton conductive at intermediate temperature of ∼600…”

Section: 2mentioning

confidence: 99%

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Effects of H₂O and CO₂on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC

Sun

Cheng

2016

J. Electrochem. Soc.

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Proton conducting intermediate temperature (400-700 • C) solid oxide fuel cells (IT-SOFC) have attracted great interest recently. However, for SOFC operation at intermediate temperature, cathode is often considered to be the main factor limiting the overall cell performance. In this study, Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3-δ (BSCF), which is one of the most active cathode materials and shows significant hydration effect suggesting possible proton conductivity, was investigated as the cathode for proton conducting IT-SOFC at temperature down to ∼450 • C. The stability and compatibility of BSCF cathode with BaZr 0.1 Ce 0.7 Y 0.1 Yb 0.1 O 3-δ (BZCYYb), one of the leading proton conducting electrolyte materials, were studied at intermediate temperature in various atmospheres. In addition, experiments were carried out to understand the electrochemical behaviors of BSCF as a mixed proton, oxide ion and electron conducting cathode using BSCF/BZCYYb/BSCF symmetrical cells in simulated air containing different concentrations of water vapor (H 2 O) and carbon dioxide (CO 2 ), especially at lower temperature of ∼450 • C. The results are analyzed from the underlying oxygen electrode reaction mechanism point of view, and the direction for future research to further improve the cathode for proton conducting IT-SOFC is pointed out.

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Section: 2mentioning

confidence: 99%

Section: 2mentioning

confidence: 99%

Effects of H₂O and CO₂on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC

Sun

Cheng

2016

J. Electrochem. Soc.

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“…It could then be attempted to synthesize them as dense materials for SOFC cathodes. A specific attention was focused on lanthanum nickelate La 2 NiO 4 + δ because it exhibits convenient electrochemical characteristics [1][2][3][4][5]. Its thermal expansion coefficient (TEC) is very close to those of the most commonly used electrolyte materials (13 · 10 − 6 K − 1 [2], 11.9·10 −6 K −1 and 11.6·10 − 6 K − 1 for La 2 NiO 4 + δ , CeO 2 -Gd 2 O 3 (CGO) and ZrO 2 -Y 2 O 3 (YSZ) respectively).…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of La 2 NiO 4+δ coatings deposited by reactive magnetron sputtering using plasma emission monitoring

Fondard¹,

Billard²,

Bertrand³

et al. 2014

Solid State Ionics

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Briois. Synthesis and characterization of La2NiO4+δ coatings deposited by reactive magnetron sputtering using plasma emission monitoring. Solid State Ionics, Elsevier, 2014, vol. 265, pp. 73-79. 10 This work focuses on the structural and electrical characterization of La-Ni-O coatings deposited by reactive magnetron sputtering using Plasma Emission Monitoring (PEM) which allows high deposition rate. The optimal regulation setpoint for lanthanum deposition is determined and then the current dissipated on the nickel target is adjusted to obtain the convenient La/Ni ratio to achieve the K 2 NiF 4 structure. After an appropriate annealing treatment, all coatings exhibit crystalline structures that depend on the La/Ni ratio. Some cracks appear on samples deposited on alumina substrates depending to the argon flow rate and influence their electrical behavior.

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“…It has been reported that the protonic ceramic fuel cells (PCFC) involve the polarization losses related to cathode reaction, electrode/ electrolyte interfacial ion transfer and electrolyte conductivity and the corresponding impedance spectrum can be accounted in terms of an equivalent circuit model made of a series of three (RQ) components, R 0 (R 1 Q 1 )(R 2 Q 2 )(R 3 Q 3 ). [12][13][14][15][16][17] Here, R is a resistance and Q is a constant phase element which is related to a capacitance C by the following equation.…”

Section: ¹1mentioning

confidence: 99%

Electrochemical Analysis of Hydrogen Membrane Fuel Cells with Amorphous Zirconium Phosphate Thin Film Electrolyte

et al. 2014

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An electrochemical analysis was conducted with respect to a hydrogen membrane fuel cell (HMFC) comprising proton-conducting, amorphous zirconium phosphate, a-ZrP 2.5 O 8.9 H 1.3 , thin film electrolyte supported on a dense Pd anode. The HMFC gave rise to an OCV of 1.0 V, but the maximum power density was limited and was about 1 mW cm −2 at 400°C. The impedance spectroscopy revealed that the interfacial polarizations were decreased by two orders of magnitude when the cell configuration was changed from the fuel cell setup to the hydrogen concentration cell with an anode symmetric configuration. These results indicated that the polarization losses at the solid-solid anode interface are not a main contribution to the voltage loss of the HMFC. The large cathode polarization might be attributed to the lessened conductivity of amorphous zirconium phosphate electrolyte thin film formed on a precious metal electrode.

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Perovskite and A2MO4-type oxides as new cathode materials for protonic solid oxide fuel cells

Cited by 161 publications

References 39 publications

Effects of H₂O and CO₂on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC

Effects of H₂O and CO₂on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC

Synthesis and characterization of La 2 NiO 4+δ coatings deposited by reactive magnetron sputtering using plasma emission monitoring

Electrochemical Analysis of Hydrogen Membrane Fuel Cells with Amorphous Zirconium Phosphate Thin Film Electrolyte

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Perovskite and A2MO4-type oxides as new cathode materials for protonic solid oxide fuel cells

Cited by 161 publications

References 39 publications

Effects of H2O and CO2on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC

Effects of H2O and CO2on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC

Synthesis and characterization of La 2 NiO 4+δ coatings deposited by reactive magnetron sputtering using plasma emission monitoring

Electrochemical Analysis of Hydrogen Membrane Fuel Cells with Amorphous Zirconium Phosphate Thin Film Electrolyte

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Effects of H₂O and CO₂on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC

Effects of H₂O and CO₂on Electrochemical Behaviors of BSCF Cathode for Proton Conducting IT-SOFC