Structural and electrochemical characterization of YBa(Fe,Co,Cu)2O5+δ layered perovskites as cathode materials for solid oxide fuel cells

被引：14
作者：
Klyndyuk, Andrei I. [1 ]
Mosialek, Michal [2 ]
Kharitonov, Dmitry S. [2 ]
Chizhova, Ekaterina A. [1 ]
Zimowska, Malgorzata [2 ]
Socha, Robert P. [2 ]
Komenda, Anna [3 ]
机构：
[1] Belarusian State Technol Univ, Sverdlova St 13A, Minsk 220006, BELARUS
[2] Polish Acad Sci, Jerzy Haber Inst Catalysis & Surface Chem, Niezapominajek 8, PL-30239 Krakow, Poland
[3] Res & Dev Ctr Technol Ind, Ludwika Warynskiego 3A, PL-00645 Warsaw, Poland
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2021年 / 46卷 / 32期
关键词：
Intermediate temperature solid oxide fuel cell; Cathode; Layered perovskites; Thermal expansion coefficient; Electrical properties; Electrochemical impedance spectroscopy; THERMAL-EXPANSION; OXYGEN REDUCTION; LNBAFECOO(5+DELTA) LN; TRANSPORT-PROPERTIES; PERFORMANCE; SUBSTITUTION; ND; YBACO2O5+DELTA; CO; SM;
D O I：
10.1016/j.ijhydene.2021.01.141
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：
Single- and double-doped YBa(Fe,Co,Cu)(2)O5+delta layered perovskites are prepared by solid state reaction method and their structural characteristics, thermal expansion coefficient, oxygen nonstoichiometry, electrical conductivity, and electrochemical performance are comparatively studied. The substitution of Co by Fe or/and Cu significantly improves thermal expansion properties as compared to undoped YBaCo2O5+delta. Electrochemical tests demonstrate the promising performance of synthesized materials as cathode materials at intermediate temperatures. Single doped YBaCuCoO5+delta cathodes reveal the lowest polarization resistance equal to 0.24 and 0.78 Omega cm(2) at P(O-2) P-1 = 0.2 at temperature of 800 and 700 degrees C, respectively. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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收藏
页码：16977 / 16988
页数：12
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