A review of the chemical compatibility between oxide electrodes and electrolytes in solid oxide fuel cells

Zhang, Linlin; Chen, Gang; Dai, Ruixin; Lv, Xiaohong; Yang, Di; Geng, Shujiang

doi:10.1016/j.jpowsour.2021.229630

Cited by 72 publications

(46 citation statements)

References 168 publications

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“…Sr diffusion is negligible and no SrZrO 3 perovskite diffraction peaks have been observed at the interface between YSZ and LSM [42]. This is a common issue in YSZ/LSM semi-cells and has been largely reported in the literature [43][44][45][46][47][48], so that the coating produced in the present work by controlled colloidal processing is in line with the state-of-the-art.…”

Section: Shaping Of Lsm Coatings Onto Ysz Tapessupporting

confidence: 56%

Colloidal Processing of Y0.08Zr0.92O2/La0.80Sr0.20MnO3 Semi-Cells Using a Sr-Doped Lanthanum Manganite Synthesized by a Citrate Route

2021

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In this paper, the interface between yttria stabilized zirconia (Y0.08Zr0.92O2, YSZ) electrolyte and Sr-doped lanthanum manganite (La0.80Sr0.20MnO3, LSM) cathode for solid oxide fuel cells (SOFCs) is studied. For such a purpose, the combination of a suitable synthesis route for obtaining fine powders and simple aqueous colloidal shaping routes is proposed. The synthesis of nanosized particles of La0.80Sr0.20MnO3 by a citrate route and their full characterization, including the colloidal stability and the densification and phase development determined by X-ray diffraction and electron microscopy at different temperatures, is reported. In a second step, YSZ tapes were obtained by aqueous tape casting and used as substrates for the preparation of LSM coatings by dip-coating using aqueous slurries. YSZ tapes were used either in the green state or after a pre-sintering treatment. Co-sintering at 1350 °C led to a sharp interface with excellent adhesion, also achieved when coating pre-sintered tapes. In both cases, the substrates are dense and the coatings are porous, with thicknesses of 85 and 60 μm for green and pre-sintered tapes, respectively. No diffusion of Zr and Y occurs at the LSM layer, but some diffusion of La and Mn towards the YSZ layer takes place.

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Section: Shaping Of Lsm Coatings Onto Ysz Tapessupporting

confidence: 56%

Colloidal Processing of Y0.08Zr0.92O2/La0.80Sr0.20MnO3 Semi-Cells Using a Sr-Doped Lanthanum Manganite Synthesized by a Citrate Route

2021

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“…24 The formation of detrimental amounts of SrZrO 3 between the electrode and the YSZ single crystal was excluded in accordance with earlier studies at 600 °C17,69,79 and measurements indicating the formation of SrZrO 3 at temperatures above 800 °C. 95 . The impedance spectra were fitted to the equivalent circuit shown in figure 6, where one of the R|CPE elements (CPE = constant phase element 96 ) represents the low frequency surface feature of the electrode impedance, and the other one the medium frequency interface shoulder.…”

Section: In-situ Electrochemical Characterisation During Growth Of Multi-layersmentioning

confidence: 99%

Performance modulation through selective, homogenous surface doping of lanthanum strontium ferrite electrodes revealed by in situ PLD impedance measurements

et al. 2022

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“…Oxygen mobility in materials used in SOFCs and catalytic membranes was comparatively discussed in detail in [ 84 ]. The results of the investigation of chemical compatibility between different oxide electrodes and solid electrolytes in SOFCs are provided in [ 85 ]. Concerning LODPs, cathode materials such as Ln BaCo 2 O 5+δ ( Ln = Pr and Gd) possess poor chemical compatibility with (Ce,Sm)O 2–δ (SDC) and(Ce,Gd)O 2–δ (GDC) above 1173 K and are prone to chemical reactions with the formations of BaCeO 3 , BaCoO 3 , and Sm 2 CuO 4 .…”

Section: Crystal Structure Phase Transitions and Physicochemical And Functional Properties Of Layered Oxygen-deficient Double Perovskitesmentioning

confidence: 99%

Layered Oxygen-Deficient Double Perovskites as Promising Cathode Materials for Solid Oxide Fuel Cells

et al. 2021

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Development of new functional materials with improved characteristics for solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs) is one of the most important tasks of modern materials science. High electrocatalytic activity in oxygen reduction reactions (ORR), chemical and thermomechanical compatibility with solid electrolytes, as well as stability at elevated temperatures are the most important requirements for cathode materials utilized in SOFCs. Layered oxygen-deficient double perovskites possess the complex of the above-mentioned properties, being one of the most promising cathode materials operating at intermediate temperatures. The present review summarizes the data available in the literature concerning crystal structure, thermal, electrotransport-related, and other functional properties (including electrochemical performance in ORR) of these materials. The main emphasis is placed on the state-of-art approaches toimproving the functional characteristics of these complex oxides.

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A review of the chemical compatibility between oxide electrodes and electrolytes in solid oxide fuel cells

Cited by 72 publications

References 168 publications

Colloidal Processing of Y0.08Zr0.92O2/La0.80Sr0.20MnO3 Semi-Cells Using a Sr-Doped Lanthanum Manganite Synthesized by a Citrate Route

Colloidal Processing of Y0.08Zr0.92O2/La0.80Sr0.20MnO3 Semi-Cells Using a Sr-Doped Lanthanum Manganite Synthesized by a Citrate Route

Performance modulation through selective, homogenous surface doping of lanthanum strontium ferrite electrodes revealed by in situ PLD impedance measurements

Layered Oxygen-Deficient Double Perovskites as Promising Cathode Materials for Solid Oxide Fuel Cells

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