Ni-GDC and Ni-YSZ electrodes operated in solid oxide electrolysis and fuel cell modes

被引：39
|
作者：
Sciazko, Anna [1 ,2 ]
Shimura, Takaaki [1 ,3 ]
Komatsu, Yosuke [1 ,4 ]
Shikazono, Naoki [1 ]
机构：
[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, 4-6-1 Komaba, Tokyo 1538505, Japan
[2] AGH Univ Sci & Technol, Dept Fundamental Res Energy Engn, Al Mickiewicza 30, PL-30059 Krakow, Poland
[3] Tokyo Univ Agr & Technol, 3-8-1 Harumicho, Fuchu, Tokyo 1838538, Japan
[4] Shibaura Inst Technol, Dept Engn Sci & Mech, Koto Ku, 3-7-5 Toyosu, Tokyo 1358548, Japan
来源：
JOURNAL OF THERMAL SCIENCE AND TECHNOLOGY | 2021年 / 16卷 / 01期
关键词：
Solid oxide cell; Ni-GDC electrode; Ni-YSZ electrode; Mixed conductivity; Fuel cell; Electrolysis; Microstructure; Degradation; FIB-SEM; POLARIZATION CHARACTERISTICS; MICROSTRUCTURE DEGRADATION; SELF-MODIFICATION; CERMET ANODES; NICKEL; QUANTIFICATION; AGGLOMERATION;
D O I：
10.1299/jtst.2021jtst0013
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In the present study, solid oxide cells (SOCs) were operated in the electricity generation (solid oxide fuel cell, SOFC) mode and the hydrogen production (solid oxide electrolysis cell, SOEC) mode. The fuel electrodes fabricated with nickel-gadolinia doped ceria (Ni-GDC) and nickel-yttria stabilized zirconia (Ni-YSZ) composites were investigated. The correlations between changes in the microstructure and degradation of electrochemical performance are discussed. The degradation mechanisms correlated with Ni phase were found to be similar for Ni-GDC and Ni-YSZ electrodes. On the other hand, the stability of the ceramic phase differs significantly between the two electrode materials.
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页码：1 / 10
页数：10
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