TiO2-modified La0.6Sr0.4Co0.2Fe0.8O3-δ cathode for intermediate temperature solid oxide fuel cells

被引：3
作者：
Liu, Weixing [1 ,2 ]
Zhao, Zhe [1 ]
Tu, Baofeng [1 ]
Cui, Daan [1 ]
Ou, Dingrong [1 ]
Cheng, Mojie [1 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, Div Fuel Cells, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2015年 / 36卷 / 04期
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
Intermediate temperature solid oxide fuel cell; Cathode; Titanium oxide; Interfacial reaction; Zirconia-based electrolyte; PHOTOCATALYTIC ACTIVITY; PERFORMANCE; TIO2; LAYER; CONDUCTIVITY; PEROVSKITES; ELECTROLYTE; SOFCS; GLASS;
D O I：
10.1016/S1872-2067(14)60235-7
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A La0.6Sr0.4Co0.2Fe0.8O3-delta(LSCF) cathode modified using nanosized TiO2 was direct prepared on the yttria stabilized zirconia (YSZ) electrolyte in an intermediate temperature solid oxide fuel cell. TiO2 prevents reaction between LSCF and YSZ, which would have formed a SrZrO3 phase. The cell with a LSCF-0.25 wt% TiO2 cathode exhibited a current density that was 1.6 times larger than that with a pure LSCF cathode at 0.7 V and 600 degrees C. Electrochemical impedance spectra showed the accelerated incorporation of oxygen anions into the YSZ electrolyte with the TiO2-modified LSCF cathode. The improvement was attributed to the suppressed formation of a non-conductive SrZrO3 layer at the cathode/electrolyte interface. (C) 2015, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：502 / 508
页数：7
相关论文
共 24 条
[1]   Microstructure and photocatalytic activity of suspension plasma sprayed TiO2 coatings on steel and glass substrates [J].
Bannier, E. ;
Darut, G. ;
Sanchez, E. ;
Denoirjean, A. ;
Bordes, M. C. ;
Salvador, M. D. ;
Rayon, E. ;
Ageorges, H. .
SURFACE & COATINGS TECHNOLOGY, 2011, 206 (2-3) :378-386
[2]   Interlayer-free electrodes for IT-SOFCs by applying Co3O4 as sintering aid [J].
Chen, Dengjie ;
Wang, Fucun ;
Shao, Zongping .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2012, 37 (16) :11946-11954
[3]   Nano-structured (La, Sr)(Co, Fe)O3+YSZ composite cathodes for intermediate temperature solid oxide fuel cells [J].
Chen, Jing ;
Liang, Fengli ;
Liu, Lina ;
Jiang, Sanping ;
Chi, Bo ;
Pu, Jian ;
Li, Jian .
JOURNAL OF POWER SOURCES, 2008, 183 (02) :586-589
[4]   Efficiency of a dense thin CGO buffer layer for solid oxide fuel cell operating at intermediate temperature [J].
Constantin, G. ;
Rossignol, C. ;
Briois, P. ;
Billard, A. ;
Dessemond, L. ;
Djurado, E. .
SOLID STATE IONICS, 2013, 249 :98-104
[5]   Surface strontium enrichment on highly active perovskites for oxygen electrocatalysis in solid oxide fuel cells [J].
Crumlin, Ethan J. ;
Mutoro, Eva ;
Liu, Zhi ;
Grass, Michael E. ;
Biegalski, Michael D. ;
Lee, Yueh-Lin ;
Morgan, Dane ;
Christen, Hans M. ;
Bluhm, Hendrik ;
Shao-Horn, Yang .
ENERGY & ENVIRONMENTAL SCIENCE, 2012, 5 (03) :6081-6088
[6]   Suppression of Sr surface segregation in La1-xSrxCo1-yFeyO3-δ: a first principles study [J].
Ding, Hepeng ;
Virkar, Anil V. ;
Liu, Meilin ;
Liu, Feng .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2013, 15 (02) :489-496
[7]   Thermal evolution of structure and photocatalytic activity in polymer microsphere templated TiO2 microbowls [J].
Erdogan, Deniz Altunoz ;
Polat, Meryem ;
Garifullin, Ruslan ;
Guler, Mustafa O. ;
Ozensoy, Emrah .
APPLIED SURFACE SCIENCE, 2014, 308 :50-57
[8]   Electrochemically driven cation segregation in the mixed conductor La0.6Sr0.4Co0.2Fe0.8O3-δ [J].
Finsterbusch, M. ;
Lussier, A. ;
Schaefer, J. A. ;
Idzerda, Y. U. .
SOLID STATE IONICS, 2012, 212 :77-80
[9]   The effect of testing geometry on the measurement of cell performance in anode-supported solid oxide fuel cells - The effect of cathode area [J].
Jiang, Y ;
Virkar, AV ;
Zhao, F .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (10) :A1091-A1099
[10]   Ce0.8Gd0.2O2-δ protecting layers manufactured by physical vapor deposition for IT-SOFC [J].
Jordan, N. ;
Assenmacher, W. ;
Uhlenbruck, S. ;
Haanappel, V. A. C. ;
Buchkremer, H. P. ;
Stoever, D. ;
Mader, W. .
SOLID STATE IONICS, 2008, 179 (21-26) :919-923
123