Layered perovskite PrBa0.5Sr0.5CoCuO5+δ as a cathode for intermediate-temperature solid oxide fuel cells

被引：31
作者：
Wang, Biao [1 ,2 ]
Long, Guohui [3 ]
Ji, Yuan [1 ]
Pang, Mingjun [1 ]
Meng, Xiangwei [1 ]
机构：
[1] Jilin Univ, Coll Phys, Minist Educ, Key Lab Phys & Technol Adv Batteries, Changchun 130012, Peoples R China
[2] Univ Sci & Technol Liaoning, Sch Sci, Anshan 114051, Peoples R China
[3] Jilin Agr Univ, Coll Life Sci, Changchun 130118, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 606卷
关键词：
Solid oxide fuel cells; Cathode; PrBa0.5Sr0.5CoCuO5+delta; Electrochemical performance; ELECTROCHEMICAL PROPERTIES; COMPOSITE CATHODES; POTENTIAL CATHODE; PERFORMANCE; SOFCS; ELECTROLYTE; EXPANSION; SYSTEM; SR; SM;
D O I：
10.1016/j.jallcom.2014.03.138
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：
Layered perovskite PrBa0.5Sr0.5CoCuO5+delta (PBSCCo) oxide is synthesized by EDTA-citrate complexing method and investigated as a novel cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs). X-ray diffraction results show that PBSCCo is chemical compatible with Gd0.1Ce0.9O1.95 (GDC) electrolyte below 950 degrees C. The thermal expansion coefficient of PBSCCo is 17.58 x 10 (6) K (1) between 30 degrees C and 900 degrees C. The maximum electrical conductivity of PBSCCo is 483 S cm (1) at 325 degrees C. The polarization resistance of PBSCCo cathode on GDC electrolyte is as low as 0.06 Omega cm(2) at 800 degrees C. The maximum power density of the electrolyte-supported single cell with PBSCCo cathode achieves 521 mWcm (2) at 800 degrees C. Preliminary results indicate that PBSCCo is a potential cathode material for application in IT-SOFCs. (C) 2014 Elsevier B.V. All rights reserved.
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收藏
页码：92 / 96
页数：5
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