A-site entropy engineering to enhance performance of rare-earth iron perovskite cathode for solid oxide fuel cells

被引：0

作者：

Desta, Halefom G. ^{[1
,2
]}

Gebreslassie, Gebrehiwot ^{[1
,3
]}

Wang, Guoqing ^{[1
,4
]}

Cheng, Yijun ^{[2
]}

Sun, Mengyuan ^{[2
]}

Gong, Xinwei ^{[2
]}

Zhu, Shiyue ^{[2
]}

Tian, Dong ^{[2
]}

Xu, Pengfei ^{[4
]}

Lin, Bin ^{[1
,2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Peoples R China

[2] Huainan Normal Univ, Anhui Prov Key Lab Low Temp Cofired Mat, Huainan 232038, Peoples R China

[3] Addis Ababa Sci & Technol Univ, Nanotechnol Ctr Excellence, POB 16417, Addis Ababa, Ethiopia

[4] Minist Ind & Informat Technol, Elect Res Inst 5, Guangzhou 511370, Peoples R China

来源：

FUEL | 2025年 / 396卷

关键词：

Solid oxide fuel cells; High-entropy perovskite oxide; Cathode; Oxygen reduction reaction; ELECTRODES; OXYGEN;

D O I：

10.1016/j.fuel.2025.135288

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Solid oxide fuel cells (SOFCs) are promising energy conversion devices due to their high efficiency and low emissions. However, their commercialization is hindered by high operating temperatures, interfacial reactions, and durability issues. Here, we report a high-entropy perovskite cathode, (La0.2Pr0.2Nd0.2Ba0.2Sr0.2)FeO3-delta (HELSF), designed to enhance electrochemical performance and durability at intermediate temperatures for SOFCs. HE-LSF exhibits superior oxygen reduction reaction (ORR) activity, higher electrical conductivity (46-115 S cm(-1)), and improved thermal stability compared to LSF. Symmetrical cells with HE-LSF exhibit lower polarization resistance (R-p) and better stability over 35 hat 750 degrees C. A single-cell utilizing HE-LSF as cathode achieves a peak power density of 910 mW cm(2) at 800 degrees C, with negligible performance decay observed over 90 h of continuous operation. These findings highlight the potential of high-entropy materials for developing efficient and durable SOFCs.

引用

页数：11

共 65 条

[1] Perovskite Oxide Based Electrodes for the Oxygen Reduction and Evolution Reactions: The Underlying Mechanism [J].

Beall, Casey E. ;

Fabbri, Emiliana ;

Schmidt, Thomas J. .

ACS CATALYSIS, 2021, 11 (05) :3094-3114

[2] Tailoring the Cathode-Electrolyte Interface with Nanoparticles for Boosting the Solid Oxide Fuel Cell Performance of Chemically Stable Proton-Conducting Electrolytes [J].

Bi, Lei ;

Shafi, Shahid P. ;

Da'as, Eman Husni ;

Traversa, Enrico .

SMALL, 2018, 14 (32)

[3] Fundamentals and future applications of electrochemical energy conversion in space [J].

Brinkert, Katharina ;

Mandin, Philippe .

NPJ MICROGRAVITY, 2022, 8 (01)

[4] Investigation of chemisorbed oxygen, surface segregation and effect of post-treatments on La0.8Sr0.2MnO3 powder and screen-printed layers for solid oxide fuel cell cathodes [J].

Caillol, N. ;

Pijolat, M. ;

Siebert, E. .

APPLIED SURFACE SCIENCE, 2007, 253 (10) :4641-4648

[5] A one-step densification approach of porous La0.6Sr0.4Co0.2Fe0.8O3-δ coatings towards high-temperature oxidation resistance application [J].

Choudhary, Bishnu ;

Chatterjee, Sriparna ;

Besra, Laxmidhar .

RESULTS IN SURFACES AND INTERFACES, 2024, 14

[6] Enhancing performance of lower-temperature solid oxide fuel cell cathodes through surface engineering [J].

Desta, Halefom G. ;

Gebreslassie, Gebrehiwot ;

Zhang, Jianjian ;

Lin, Bin ;

Zheng, Yun ;

Zhang, Jiujun .

PROGRESS IN MATERIALS SCIENCE, 2025, 147

[7] Nanoengineering of cathode layers for solid oxide fuel cells to achieve superior power densities [J].

Develos-Bagarinao, Katherine ;

Ishiyama, Tomohiro ;

Kishimoto, Haruo ;

Shimada, Hiroyuki ;

Yamaji, Katsuhiko .

NATURE COMMUNICATIONS, 2021, 12 (01)

[8] Solid oxide fuel cell: Materials for anode, cathode and electrolyte [J].

Dwivedi, Sudhanshu .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2020, 45 (44) :23988-24013

[9] Recent development of hydrogen and fuel cell technologies: A review [J].

Fan, Lixin ;

Tu, Zhengkai ;

Chan, Siew Hwa .

ENERGY REPORTS, 2021, 7 :8421-8446

[10] Vanadium-assisted surface engineering of heterostructured cathode for enhanced protonic ceramic fuel cell performance [J].

Fu, Min ;

Gao, Yang ;

Zhang, Mingming ;

Shi, Nai ;

Tao, Zetian ;

Shao, Zongping .

CHEMICAL ENGINEERING JOURNAL, 2025, 505

← 1 2 3 4 5 6 7 →