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Preparation and Performance of a La0.6Sr0.4CoxFe1−xO3 Cathode for Solid Oxide Fuel Cells

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Abstract

In this study, a potential cathode material, La0.6Sr0.4CoxFe1−xO3 (LSCF), for intermediate-temperature solid oxide fuel cells (SOFCs) is synthesized via a citric acid-assisted combustion method. The electrolyte-supported solid oxide fuel cell is formed in a conventional way to estimate the cell performance. Results show that the as-prepared powders have a pure perovskite structure after calcination at 1050°C, and the initial powders have a fluffy and spongy mass with a porous structure. The cell performance is affected by the LSCF powder morphology and calcination temperature. The peak power density of the Y2O3-stabilized ZrO2 (YSZ) electrolyte-supported single cell using LSCF as cathode is 28 mW cm−2 at 800°C, while the smallest area-specific resistance obtained is 19 Ω cm2. This suggests that La0.6Sr0.4CoxFe1−xO3 is a promising potential cathode material for SOFCs.

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Acknowledgments

This work was supported by the Natural Science Foundation of Anhui Province of China under contact no. 2108085ME152 and the Talent Research Fund Project of Hefei University under contact no. 21-22RC34.

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  1. School of Energy Materials and Chemical Engineering, Hefei University, Hefei, 230601, China

    Pan Wang & Jihai Cheng

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  1. Pan Wang
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  2. Jihai Cheng
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Correspondence to Jihai Cheng.

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Wang, P., Cheng, J. Preparation and Performance of a La0.6Sr0.4CoxFe1−xO3 Cathode for Solid Oxide Fuel Cells. J. Electron. Mater. 51, 6410–6415 (2022). https://doi.org/10.1007/s11664-022-09876-1

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