Enhanced performance of La0.7Sr0.3Fe0.9Ni0.1O3 cathode by partial substitution with Ce

被引：22

作者：

Bian, Liu Zhen ^{[1
]}

Wang, Li Jun ^{[2
]}

Chen, Ning ^{[3
]}

Li, Fu Shen ^{[3
]}

Chou, Kuo-Chih ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, State Key Lab Adv Met, Beijing 100083, Peoples R China

[2] Univ Sci & Technol Beijing, Collaborat Innovat Ctr Steel Technol, Beijing 100083, Peoples R China

[3] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2017年 / 43卷 / 01期

基金：

中国博士后科学基金;

关键词：

Solid oxide fuel cell; Perovskite; Cathode materials; Oxygen reduction reaction; OXIDE FUEL-CELLS; ELECTRICAL-PROPERTIES; OXYGEN REDUCTION; PHASE-STRUCTURE; TEMPERATURE; LA0.8SR0.2MNO3; PEROVSKITES; STABILITY; STORAGE;

D O I：

10.1016/j.ceramint.2016.10.029

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：

The crystal structure, conductivity, and electrochemical properties of Ce doped La0.7Sr0.3Fe0.9Ni0.1O3-delta (CLSFNi) have been investigated as solid oxide fuel cell (SOFC) cathode. The polarization resistance of symmetric cell was reduced, although the substitution of Ce at La-sites decreased the symmetry of crystal structure and total electrical conductivity. The results indicate that the incorporation of Ce improves the catalyst activity of oxygen reduction reaction. The addition of GDC (Gd0.1Ce0.9O2-delta) can further decrease the polarization resistance (R-p); for example, the R-p values of CLSFNi and CLSFNi7-GDC3 at 750 degrees C are 0.130 and 0.047 Omega cm(2), respectively. The peak power density is 903, 499, 235 mW cm(-2) for the La0.75Sr0.3Fe0.9Ni0.1O3-delta (LSFNi) cathode and 1091, 725, 423 mW cm(-2) for the CLSFNi cathode at 750 degrees C, 700 degrees C and 650 degrees C, respectively.

引用

页码：982 / 987

页数：6

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