Zr doped BaFeO3-δ as a robust electrode for symmetrical solid oxide fuel cells

被引：51
作者：
He, Wei [1 ,2 ]
Fan, Jingchen [1 ]
Zhang, Heng [1 ]
Chen, Meina [3 ]
Sun, Zhengming [1 ]
Ni, Meng [2 ]
机构：
[1] Southeast Univ, Jiangsu Key Lab Adv Metall Mat, Sch Mat Sci & Engn, Nanjing 211189, Jiangsu, Peoples R China
[2] Hong Kong Polytech Univ, Bldg Energy Res Grp, Dept Bldg & Real Estate, Hung Hom,Kowloon, Hong Kong 999077, Peoples R China
[3] Shandong Normal Univ, Sch Phys & Elect, Jinan 250014, Shandong, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2019年 / 44卷 / 60期
基金：
中国国家自然科学基金;
关键词：
Symmetrical solid oxide fuel cells; Electrode; High performance; Stability; PEROVSKITE-TYPE OXIDE; HIGH-PERFORMANCE; CATHODE MATERIAL; TEMPERATURE; MEMBRANES; SITE;
D O I：
10.1016/j.ijhydene.2019.10.091
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A BaFe0.9Zr0.1O3-delta (BFZ) is successfully synthesized and its characteristics are investigated. The oxide exhibits high stability and a cubic perovskite structure in a reducing atmosphere. A La0.9Sr0.1Ga0.8Mg0.2O3-delta (LSGM) supported symmetrical solid oxide fuel cell (SOFC) with BFZ electrode demonstrates a maximum power density of 1097 mW cm(-2) using humidified H-2 as the fuel and ambient air as the oxidant at 800 degrees C. And as low as 0.190 Omega cm(2) of polarization resistance of single cell is observed at 650 degrees C. Moreover, the electrode demonstrates high stability in 100 h test, as well as redox stability in both oxidizing and reducing atmospheres. The high electrochemical property and good stability suggest that the BFZ is promising candidate for symmetrical SOFC electrode. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：32164 / 32169
页数：6
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