Doping modifications of SrSc0.2Co0.8O3-δ perovskite cathode materials for intermediate-temperature solid oxide fuel cells

Yuanyuan Zhao; Penghui Yao; Huayu Zhang; Zilin Yan; Junwei Wu

doi:10.1016/j.mseb.2025.118466

Doping modifications of SrSc_0.2Co_0.8O_3-δ perovskite cathode materials for intermediate-temperature solid oxide fuel cells

Yuanyuan Zhao
, Penghui Yao
, Huayu Zhang^*
, Zilin Yan
, Junwei Wu

^*Corresponding author for this work

Harbin Institute of Technology (Shenzhen)
Aalto University
Hanshan Normal University
Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Designing cathode with both high electrocatalytic activity and high stability is a significant challenge in development of solid oxide fuel cell (SOFCs). This study uses solid-phase synthesis techniques to design SrSc_0.2-_xTa_xCo_0.8O_3-δ (SSTC_x, where x = 0, 0.015, 0.025, 0.050) cathode materials, which demonstrates good chemical compatibility with Sm_0.2Ce_0.8O_1.9 (SDC) electrolytes. The effects of sintering temperature on the microstructure, morphology, and electrochemical properties of SSTC_x were systematically investigated. The incorporation of tantalum (Ta) substantially enhanced the electrochemical activity of SrSc_0.2Co_0.8O_3-δ (SScC) cathodes, leading to a more than twofold reduction in electrode polarization resistance. The Ni_0.9Cu_0.1O_x-SDC/SDC/SSTC_0.025 and Ni-YSZ/YSZ/GDC/SSTC_0.025 cells exhibit exceptional performance and durability. These results indicate that SSTC_0.025 is a promising material for application in SOFCs.

Original language	English
Article number	118466
Journal	Materials Science and Engineering: B
Volume	321
DOIs	https://doi.org/10.1016/j.mseb.2025.118466
State	Published - Nov 2025
Externally published	Yes

Keywords

Cathodes
Doping modifications
Durability
Electrochemical performance
Solid oxide fuel cells

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10.1016/j.mseb.2025.118466

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title = "Doping modifications of SrSc0.2Co0.8O3-δ perovskite cathode materials for intermediate-temperature solid oxide fuel cells",

abstract = "Designing cathode with both high electrocatalytic activity and high stability is a significant challenge in development of solid oxide fuel cell (SOFCs). This study uses solid-phase synthesis techniques to design SrSc0.2-xTaxCo0.8O3-δ (SSTCx, where x = 0, 0.015, 0.025, 0.050) cathode materials, which demonstrates good chemical compatibility with Sm0.2Ce0.8O1.9 (SDC) electrolytes. The effects of sintering temperature on the microstructure, morphology, and electrochemical properties of SSTCx were systematically investigated. The incorporation of tantalum (Ta) substantially enhanced the electrochemical activity of SrSc0.2Co0.8O3-δ (SScC) cathodes, leading to a more than twofold reduction in electrode polarization resistance. The Ni0.9Cu0.1Ox-SDC/SDC/SSTC0.025 and Ni-YSZ/YSZ/GDC/SSTC0.025 cells exhibit exceptional performance and durability. These results indicate that SSTC0.025 is a promising material for application in SOFCs.",

keywords = "Cathodes, Doping modifications, Durability, Electrochemical performance, Solid oxide fuel cells",

author = "Yuanyuan Zhao and Penghui Yao and Huayu Zhang and Zilin Yan and Junwei Wu",

note = "Publisher Copyright: {\textcopyright} 2025",

year = "2025",

month = nov,

doi = "10.1016/j.mseb.2025.118466",

language = "英语",

volume = "321",

journal = "Materials Science and Engineering: B",

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TY - JOUR

T1 - Doping modifications of SrSc0.2Co0.8O3-δ perovskite cathode materials for intermediate-temperature solid oxide fuel cells

AU - Zhao, Yuanyuan

AU - Yao, Penghui

AU - Zhang, Huayu

AU - Yan, Zilin

AU - Wu, Junwei

PY - 2025/11

Y1 - 2025/11

N2 - Designing cathode with both high electrocatalytic activity and high stability is a significant challenge in development of solid oxide fuel cell (SOFCs). This study uses solid-phase synthesis techniques to design SrSc0.2-xTaxCo0.8O3-δ (SSTCx, where x = 0, 0.015, 0.025, 0.050) cathode materials, which demonstrates good chemical compatibility with Sm0.2Ce0.8O1.9 (SDC) electrolytes. The effects of sintering temperature on the microstructure, morphology, and electrochemical properties of SSTCx were systematically investigated. The incorporation of tantalum (Ta) substantially enhanced the electrochemical activity of SrSc0.2Co0.8O3-δ (SScC) cathodes, leading to a more than twofold reduction in electrode polarization resistance. The Ni0.9Cu0.1Ox-SDC/SDC/SSTC0.025 and Ni-YSZ/YSZ/GDC/SSTC0.025 cells exhibit exceptional performance and durability. These results indicate that SSTC0.025 is a promising material for application in SOFCs.

AB - Designing cathode with both high electrocatalytic activity and high stability is a significant challenge in development of solid oxide fuel cell (SOFCs). This study uses solid-phase synthesis techniques to design SrSc0.2-xTaxCo0.8O3-δ (SSTCx, where x = 0, 0.015, 0.025, 0.050) cathode materials, which demonstrates good chemical compatibility with Sm0.2Ce0.8O1.9 (SDC) electrolytes. The effects of sintering temperature on the microstructure, morphology, and electrochemical properties of SSTCx were systematically investigated. The incorporation of tantalum (Ta) substantially enhanced the electrochemical activity of SrSc0.2Co0.8O3-δ (SScC) cathodes, leading to a more than twofold reduction in electrode polarization resistance. The Ni0.9Cu0.1Ox-SDC/SDC/SSTC0.025 and Ni-YSZ/YSZ/GDC/SSTC0.025 cells exhibit exceptional performance and durability. These results indicate that SSTC0.025 is a promising material for application in SOFCs.

KW - Cathodes

KW - Doping modifications

KW - Durability

KW - Electrochemical performance

KW - Solid oxide fuel cells

UR - https://www.scopus.com/pages/publications/105007438982

U2 - 10.1016/j.mseb.2025.118466

DO - 10.1016/j.mseb.2025.118466

M3 - 文章

AN - SCOPUS:105007438982

SN - 0921-5107

VL - 321

JO - Materials Science and Engineering: B

JF - Materials Science and Engineering: B

M1 - 118466

ER -

Doping modifications of SrSc_0.2Co_0.8O_3-δ perovskite cathode materials for intermediate-temperature solid oxide fuel cells

Abstract

Keywords

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