Mo-doped Ba0.5Sr0.5Co0.8Fe0.2O3-? as a high-performance symmetric electrode for solid oxide fuel cells

被引：13
|
作者：
Shen, Yufan [1 ]
Song, Yang [2 ]
Zhao, Yunxia [1 ]
Zhao, Juzheng [1 ]
Yan, Manyu [1 ]
Lu, Qian [1 ]
Bu, Yunfei [1 ]
机构：
[1] Univ Informat Sci & Technol NUIST, UNIST NUIST Energy and Environment Jointed Lab, Sch Environm Sci & Technol,Jiangsu Key Lab Atmos, Jiangsu Collaborat Innovat Ctr Atmospher Environm, 219 Ningliu, Nanjing 210044, Peoples R China
[2] Nanjing Xiaozhuang Univ, Sch Environm Sci, 3601 Hongjing, Nanjing 211171, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2022年 / 928卷
基金：
中国国家自然科学基金;
关键词：
Symmetrical solid oxide fuel cell; Ba0; 5Sr0; 5(Co0; 8Fe0; 2)0; 8Mo0; Perovskite; Molybdenum doped; ELECTROCHEMICAL PERFORMANCE; LATTICE OXYGEN; PEROVSKITE; CATHODE; ANODE; OXIDATION; CATALYST; XPS; X=0;
D O I：
10.1016/j.jallcom.2022.167029
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：
The perovskite oxide Ba0.5Sr0.5(Co0.8Fe0.2)0.8Mo0.2O3-delta (BSCFM) is used as both an anode and cathode in symmetrical solid oxide fuel cells (SSOFCs) because of its high electrocatalytic activity for both oxygen reduction reaction and fuel oxidation. Doping with Molybdenum (Mo) not only stabilizes the structure of Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) to improve the redox stability, it also dramatically enhances its electrochemical performance and thermal expansion compatibility. At 800 degrees C, the area specific polarization resistance (ASRp) for the BSCFM symmetric cell with La0.8Sr0.2Ga0.8Mg0.2O3-delta (LSGM) electrolyte is 0.064 omega cm2 and the maximum power density can reach 1225 mW cm-2 with wet H2 (3 % H2O) as fuel. (c) 2022 Elsevier B.V. All rights reserved.
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页数：9
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