Developing abundant rare-earth iron perovskite electrodes for high-performance and low-cost solid oxide fuel cells

Kai Song; Fang Wang; Jinqiu Zhang; Biao Niu; Cheng Cheng Wang; Halefom G. Desta; Xing Gao; Dong Tian; Yihan Ling; Bin Lin

iScience (Jun 2024)

Developing abundant rare-earth iron perovskite electrodes for high-performance and low-cost solid oxide fuel cells

Kai Song,
Fang Wang,
Jinqiu Zhang,
Biao Niu,
Cheng Cheng Wang,
Halefom G. Desta,
Xing Gao,
Dong Tian,
Yihan Ling,
Bin Lin

Affiliations

Kai Song: School of Materials Science and Engineering, Changchun University of Science and Technology, No. 7989 Weixing Road, Changchun 130022, China; Zhongshan Institute of Changchun University of Science and Technology, No. 16 Huizhandong Road, Huoju Development District, Zhongshan 528437, China; Anhui Province Key Laboratory of Low-Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
Fang Wang: School of Materials Science and Engineering, Changchun University of Science and Technology, No. 7989 Weixing Road, Changchun 130022, China; Zhongshan Institute of Changchun University of Science and Technology, No. 16 Huizhandong Road, Huoju Development District, Zhongshan 528437, China; Corresponding author
Jinqiu Zhang: School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
Biao Niu: School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China
Cheng Cheng Wang: Shen Zhen Polytechnic University, Shenzhen 518055, China
Halefom G. Desta: School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
Xing Gao: Anhui Province Key Laboratory of Low-Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
Dong Tian: Anhui Province Key Laboratory of Low-Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China
Yihan Ling: School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, China; Corresponding author
Bin Lin: Anhui Province Key Laboratory of Low-Temperature Co-Fired Materials, Huainan Normal University, Huainan 232038, China; School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China; Corresponding author

Journal volume & issue: Vol. 27, no. 6
p. 109982

Abstract

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Summary: The swift advancement of the solid oxide fuel cell (SOFC) sector necessitates a harmony between electrode performance and commercialization cost. The economic value of elements is frequently linked to their abundance in the Earth’s crust. Here, we develop abundant rare-earth iron perovskite electrodes of Ln0.6Sr0.4FeO3-δ (Ln = La, Pr, and Nd) with high abundant rare-earth metals and preferred iron metal for SOFCs. All three symmetric electrode materials display a cubic perovskite phase and excellent chemical compatibility with Gd0.2Ce0.8O2-δ electrolyte. All three electrodes possess exceptional surface oxygen exchange ability. At 800°C, single cells with La0.6Sr0.4FeO3-δ, Pr0.6Sr0.4FeO3-δ, and Nd0.6Sr0.4FeO3-δ symmetric electrodes attained excellent open circuit voltages of 1.108, 1.101, and 1.097 V, respectively, as well as peak powers of 213.52, 281.12, and 254.58 mW cm−2. The results suggest that overall performance of abundant rare-earth iron perovskite electrodes has a favorable impact on the extensive expansion of SOFCs, presenting significant potential for practical applications.

Published in iScience

ISSN: 2589-0042 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Science
Website: http://www.cell.com/iscience/home

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