Properties of CuMn1.5Ni0.5O4 spinel as high-performance cathode for solid oxide fuel cells

被引：6
|
作者：
Duan, Yuanchen [1 ]
Cao, Baohua [2 ,3 ]
Li, Shiqing [2 ]
Wu, Anqi [2 ]
Huang, Zhangfa [1 ]
Wang, Jianxin [2 ]
Wang, Qin [4 ]
Yang, Jun [2 ]
Guan, Wanbing [2 ]
Qi, Xiaopeng [1 ]
机构：
[1] Jiangxi Univ Sci & Technol, Coll Rare Earth, Ganzhou, Peoples R China
[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Adv Fuel Cells & Electrolytes Technol Zhej, Ningbo 315201, Zhejiang, Peoples R China
[3] Zhejiang H2 Bank Technol Co Ltd, Hangzhou, Peoples R China
[4] Ningbo Univ, Sch Phys Sci & Technol, Dept Microelect Sci & Engn, Ningbo, Peoples R China
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2023年 / 43卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Spinel; CuMn1.5Ni0.5O4; High-performance; Composite cathode; Solid oxide fuel cells; OXYGEN REDUCTION; PEROVSKITE CATHODE; COMPOSITE CATHODES; ELECTRODE; RESISTANCE;
D O I：
10.1016/j.jeurceramsoc.2023.05.003
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Spinel oxide cathode has made great progress in solid oxide fuel cells (SOFCs) because of its special characteristics different from perovskite. In this study, a spinel-structured SOFC cathode, CuMn1.5Ni0.5O4 (CMN), is proposed. Rietveld refinement shows that CMN takes the cubic structure of the space group of P4(3)32. CMN shows a high conductivity of about 70.0-91.2 S cm(-1) at 600-800 degrees C in the air and exhibits good catalytic activity for oxygen. A symmetric cell with CMN-GDC composite cathode demonstrates a low Rp of 0.047 Omega cm(2) at 800 degrees C. The charge transfer of oxygen is the rate-limiting process at lower temperatures. The performance test results of the button cell with CMN-GDC composite cathode are excellent, with high power densities of 1342.4 mW cm(-2) at 800 degrees C. After a110h long-term test, the cell runs stably, and no microstructure damage is observed.
引用
收藏
页码：5298 / 5306
页数：9
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