化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (10) : 230-237. DOI: 10.19817/j.cnki.issn1006-3536.2026.10.021

科学研究

A位高熵工程优化固体氧化物燃料电池SrFeO_3-δ阴极性能研究

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Enhanced performance of SrFeO_3-δ cathode for solid oxide fuel cells via A-site high-entropy engineering

Zeng Simeng¹, Zhang Yanli¹, Wang Bo¹, Liu Zixuan¹, Lin Fuhua²

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Received
2025-11-03
Issue Date	Revised Date
2026-10-13	2025-11-03

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摘要

通过溶胶-凝胶法合成了SrFeO_3-δ(SFO)和A位高熵钙钛矿氧化物Sr_0.2La_0.2Sm_0.2Ca_0.2Pr_0.2FeO_3-δ(SLSCPFO),系统研究了A位高熵工程下SFO材料的晶体结构、元素价态、电导率和电化学性能的变化。研究发现,A位高熵工程有效增加了氧空位浓度,显著提高了电导率,SLSCPFO阴极表现出更好的电化学性能,在600℃时极化电阻值(R_p)为0.94Ω·cm²,与SFO相比降低了27.69%。研究结果表明,A位高熵工程是提升SOFC钙钛矿阴极材料性能的有效方式。

Abstract

In this article,the SrFeO_3-δ (SFO) and the A-site high-entropy perovskite oxide Sr_0.2La_0.2Sm_0.2Ca_0.2Pr_0.2FeO_3-δ(SLSCPFO)were synthesized by the sol-gel method.The impacts of A-site high-entropy engineering on the crystal structure,element valence states,electrical conductivity and electrochemical performance were systemically investigated.The results revealed that A-site high-entropy engineering effectively increased the oxygen vacancy concentration and significantly enhanced the electrical conductivity.The SLSCPFO cathode exhibited superior electrochemical performance,with a polarization resistance (R_p) of 0.94Ω·cm² at 600℃ in air,representing a reduction of 27.69% in contrast to the SFO cathode.The results showed that the high-entropy engineering at A-site was an effective way to enhance the performance of perovskite cathode materials for SOFC.

关键词

固体氧化物燃料电池 / 阴极材料 / SrFeO_3-δ / A位高熵 / 电化学性能

Key words

solid oxide fuel cells / cathode material / SrFeO_3-δ / A-site high-entropy / electrochemical performance

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A位高熵工程优化固体氧化物燃料电池SrFeO_3-δ阴极性能研究[J]. 化工新型材料, 2026, 54(10): 230-237 DOI:10.19817/j.cnki.issn1006-3536.2026.10.021

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] Liu Z,Zhou Z,Yang J,et al.Design of a B-site Co-free multielement perovskite oxide as oxygen electrode for efficient CO₂ solid oxide electrolysis cells[J].ACS Appl Energy Mater,2024,7(23):11020-11030.
[2] 刘春娇.钙钛矿结构钴基高熵氧化物的合成与高温电化学性质研究[C].黑龙江大学,2023.
[3] Chen Z,Ma B,Dang C,et al.A novel strategy of entropy engineering at the A-site in spinel oxides for developing high-performance SOFC cathodes[J].J Mater Chem A,2024,12(37):24997-25010.
[4] Kumar S,Das A,Omar S,Electrochemical performance of SrFeO_3-δ for application as a symmetric electrode in solid oxide fuel cells[J].ACS Appl Energy Mater,2023,6(3):2049-2062.
[5] 闫飞,董润泽,杨浦,等.甲烷为燃料的固体氧化物燃料电池钙钛矿基阳极的研究进展[J].化工新型材料,2022,50(6):71-74.
[6] 赵佳乐,曾思梦,林福华,等.Ce掺杂对固体氧化物燃料电池Sr₂Fe_1.5Mo_0.5O_6-δ阴极材料的改性研究[J].化工新型材料,2025,53(7):172-177,183.
[7] Yuan M,Gao Y,Liu L,et al.High entropy double perovskite cathodes with enhanced activity and operational stability for solid oxide fuel cells[J].J Eur Ceram Soc,2024,44(5):3267-3276.
[8] Salman M,Saleem S,Ling Y,et al.Fe-based high-entropy perovskite oxide:a strategy to suppress sr segregation and performance evaluation as an electrode material for SOFCs[J].ACS Appl Energy Mater,2024,7(19):8648-8657.
[9] Ma J,Huang C,High entropy energy storage materials:synthesis and application[J].J Energy Storage,2023,66:107419-107441.
[10] Chen Z,Zhang J,Dong J,et al.An active and Cr-tolerant high-entropy La_0.7Sr_0.3FeO_3-δbased cathode for solid oxide fuel cells[J].Int J Hydrogen Energy,2024,91:1197-1206.
[11] Gao Y,Huang X,Yuan M,et al.A SrCo_0.9Ta_0.1O_3-δderived medium-entropy cathode with superior CO₂ poisoning tolerance for solid oxide fuel cells[J].J Power Sources,2022,540:231661-231670.
[12] Sarkar A,Breitung B,Hahn H,et al.High entropy oxides:the role of entropy,enthalpy and synergy[J].Scr Mater,2020,187:43-48.
[13] Sarkar A,Wang Q,Schiele A,et al.High-entropy oxides:fundamental aspects and electrochemical properties[J].Adv Mater,2019,31(26):1806236-1806244.
[14] Zhang S,Liu S,Yang D,et al.High-entropy catalysts for electrocatalytic reduction reaction[J].J Alloys Compd,2024,1009:176970-176988.
[15] Fu X,Lü S,Meng X,et al.High-entropy cobalt-free perovskite as a high-performing nanofiber cathode for solid oxide fuel cells[J].J Mater Chem A,2024,12(40):27452-27463.
[16] Li P,Wu H,Shang J,et al.A cobalt-free high-entropy perovskite oxide material as the electrocatalyst with enhanced activity for reversible solid oxide cells[J].Ceram Int,2025,51(14):18597-18606.
[17] Salman M,Saleem S,Ling Y,et al.Improved electrochemical performance of high-entropy La_0.8Sr_0.2FeO₃-based IT-SOFC cathode[J].Ceram Int,2024,50(20):39475-39484.
[18] Zhang Y,Zhu Z,Gu Y,et al.Effect of Cl doping on the electrochemical performance of Sr₂Fe_1.5Mo_0.5O_6-δcathode material for solid oxide fuel cells[J].Ceram Int,2020,46(14):22787-22796.
[19] Jia T,Popczun E J,Lekse J W,et al.Effective Ca²⁺-doping in Sr_1-xCa_xFeO_3-δoxygen carriers for chemical looping air separation:a theoretical and experimental investigation[J].Appl Energy,2021,281:116040-116047.
[20] Chunjiao L,Liping S,Qiang L,et al.Doping effects of alkaline earth element on oxygen reduction property of high-entropy perovskite cathode for solid oxide fuel cells[J].J Electroanal Chem,2023,941:117546-117554.
[21] Liu Y,Wu R,Sun H,Chang A,et al.High-Entropy CeNbO_4+δ-based ceramics with ultrahigh comprehensive thermosensitive performances[J].ACS Appl Mater Interfaces,2024,16(22):28861-28873.
[22] Xiao M,Liu Z,Di H,et al.High-entropy materials for solid oxide cells:synthesis,applications,and prospects[J].J Energy Chem,2025,104:268-296.
[23] Shang D,Zhang B,Zhang L,et al.Improving electrocatalytic activity through multi-element doping to A-site of Fe-based perovskite cathode for solid oxide fuel cells[J].Chem Eng J,2025,506:160067-160078.
[24] Deng G,Kang K,Liu Y,et al.New oxygen regulation strategy to enhance the oxygen reduction reaction of the Pr_0.6Sr_0.4Co_0.2Fe_0.8O_3-δcathode through A-site high-entropy engineering[J].ACS Sustainable Chem Eng,2024,12(22):8366-8378.
[25] Zhang Z,Zhu Y,Zhong Y,et al.Anion doping:a new strategy for developing high-performance perovskite-type cathode materials of solid oxide fuel cells[J].Adv Energy Mater,2017,7(17):1700242-1700250.
[26] Xu C,Jiang X,Zou Z,et al.Magnetic properties improvement in La_0.67Sr_0.33MnO₃ perovskite powder with praseodymium/nickel doping[J].Mater Today Commun,2024,40:109638-109653.
[27] He F,Zhu F,Liu D,et al.A reversible perovskite air electrode for active and durable oxygen reduction and evolution reactions via the A-site entropy engineerin[J].Mater Today,2023,63:89-98.
[28] Zhang Y,Zhao J,Zeng S,et al.Investigation of Cu/F co-doped Sr₂Fe_1.5Mo_0.5O_6-δcathode for solid oxide fuel cells[J].J Solid State Chem,2025,350:125512-125520.
[29] Huang Y,Hu J,Li J,et al.Study on water splitting of the 214-type perovskite oxides LnSrCoO₄ (Ln=La,Pr,Sm,Eu,and Ga)[J].Langmuir,2024,40(19):9965-9974.
[30] Liu D,Chen Z,Zhao Y,et al.Lewis basicity enhanced SrFeO_3-δ-based perovskite fuel electrode for surface and bulk processes Co-accelerated CO₂ reduction in solid oxide electrolysis cells[J].Small,2024,21(8):2410489-2410498.
[31]Xu C,Sun K,Yang X,et al.Highly active and CO₂-tolerant Sr₂Fe_1.3Ga_0.2Mo_0.5O_6-δcathode for intermediate-temperature solid oxide fuel cells[J].J Power Sources,2020,450:227722-227729.
[32] Song Y,Zhong Q,Tan W,et al.Effect of cobalt-substitution Sr₂Fe_1.5-xCo_xMo_0.5O_6-δfor intermediate temperature symmetrical solid oxide fuel cells fed with H₂-H₂S[J].Electrochim Acta,2014,139:13-20.
[33] Liu Q,Bugaris D E,Xiao G,et al.Sr₂Fe_1.5Mo_0.5O_6-δas a regenerative anode for solid oxide fuel cells[J].J Power Sources,2011,196(22):9148-9153.
[34] Wu Y,Wang S,Gao Y,et al.In situ growth of copper-iron bimetallic nanoparticles in A-site deficient Sr₂Fe_1.5Mo_0.5O_6-δas an active anode material for solid oxide fuel cells[J].J Alloys Compd,2022,926:166852-166863.
[35] Yang M,Liu S,Shen X,et al.Robust cathode for efficient CO₂ electrolysis driven by entropy engineering in solid oxide electrolysis cells[J].ACS Energy Lett,2024,9(8):3818-3827.
[36] Ding X,Gao X,Zhu W,et al.Electrode redox properties of Ba_1-xLa_xFeO_3-δas cobalt free cathode materials for intermediate-temperature SOFCs[J].Int J Hydrogen Energy,2014,39(23):12092-12100.
[37] Richter J,Holtappels P,Graule T,et al.Materials design for perovskite SOFC cathodes[J].Monatsh Chem,2009,140(9),985-999.
[38] Liu Z,Tang Z,Song Y,et al.High-Entropy perovskite oxide:a new opportunity for developing highly active and durable air electrode for reversible protonic ceramic electrochemical cells[J].Nano-Micro Lett,2022,14(1):217-232.
[39] Jafari M,Yadollahi Farsani F,Grimm F,et al.Calcium (Ca) substitution for strontium (Sr) in La_0.58Sr_0.4Co_0.2Fe_0.8O_3-δ:stability and elechtrochemical performance in IT-SOFC cathodes[J].Electrochim Acta,2025,518:145662-145675.
[40] Han X,Ling Y,Yang Y,et al.Utilizing high entropy effects for developing chromium-tolerance cobalt-free cathode for solid oxide fuel cells[J].Adv Funct Mater,2023,33(43):2304728-2304736.
[41] Zhang W,Wang H,Guan K,et al.La_0.6Sr_0.4Co_0.2Fe_0.8O_3-δ/CeO₂ heterostructured composite nanofibers as a highly active and robust cathode catalyst for solid oxide fuel cells[J].ACS Appl Mater Interfaces,2019,11(30):26830-26841.
[42] Jiang S,Qiu H,Xu S,et al.Investigation and optimization of high-valent Ta-doped SrFeO_3-δ as air electrode for intermediate-temperature solid oxide fuel cells[J].Int J Miner Metall Mater,Metallurgy and Materials,2024,31(9):2102-2109.