Electrode properties of Sr doped La2CuO4 as new cathode material for intermediate-temperature SOFCs

被引：132
作者：
Li, Qiang
Zhao, Hui [1 ]
Huo, Lihua
Sun, Liping
Cheng, Xiaoli
Grenier, Jean-Claude
机构：
[1] Heilongjiang Univ, Sch Chem & Mat Sci, Lab Funct Mat, Harbin 150080, Peoples R China
[2] Bordeaux Inst Condensed Matter Chem, F-33608 Pessac, France
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2007年 / 9卷 / 07期
关键词：
IT-SOFC; La2-xSrxCuO4-delta cathode; area specific resistance; OXYGEN NONSTOICHIOMETRY; AC-IMPEDANCE; LA2-XSRXCUO4-DELTA; PERFORMANCE; DIFFUSION; REDUCTION; CHEMISTRY; MOBILITY; PR; LA;
D O I：
10.1016/j.elecom.2007.02.013
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
High performance Lag(-x)Sr(x)CuO(4-delta) (x = 0.1, 0.3, 0.5) cathode materials for intermediate temperature solid oxide fuel cell (IT-SOFCs) were prepared and characterized. The investigation of electrical properties indicated that La1.7Sr0.3CuO4 cathode has low area specific resistance (ASR) of 0.16 Omega cm(2) at 700 degrees C and 1.2 Omega cm(2) at 500 degrees C in air. The rate-limiting step for oxygen reduction reaction on La1.7Sr0.3CuO4 electrode changed with oxygen partial pressure and measurement temperature. La1.7Sr0.3CuO4 cathode exhibits the lowest overpotential of about 100 mV at a current density of 150 mA cm(-2) at 700 degrees C in air. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：1508 / 1512
页数：5
相关论文
共 26 条
[1]   Oxides of the AMO3 and A2MO4-type:: structural stability, electrical conductivity and thermal expansion [J].
Al Daroukh, M ;
Vashook, VV ;
Ullmann, H ;
Tietz, F ;
Raj, IA .
SOLID STATE IONICS, 2003, 158 (1-2) :141-150
[2]   Oxygen transport properties of La2Ni1-xCuxO4+δ mixed conducting oxides [J].
Boehm, E ;
Bassat, JM ;
Steil, MC ;
Dordor, P ;
Mauvy, F ;
Grenier, JC .
SOLID STATE SCIENCES, 2003, 5 (07) :973-981
[3]   INVESTIGATIONS ON THE STRUCTURAL, ELECTRICAL AND MAGNETIC-PROPERTIES OF SR SUBSTITUTED LN2NIO4 (LN = PR, SM, GD) [J].
CHEN, SC ;
RAMANUJACHARY, KV ;
GREENBLATT, M .
JOURNAL OF SOLID STATE CHEMISTRY, 1993, 105 (02) :444-457
[4]   GLYCINE NITRATE COMBUSTION SYNTHESIS OF OXIDE CERAMIC POWDERS [J].
CHICK, LA ;
PEDERSON, LR ;
MAUPIN, GD ;
BATES, JL ;
THOMAS, LE ;
EXARHOS, GJ .
MATERIALS LETTERS, 1990, 10 (1-2) :6-12
[5]   A kinetic study of the oxygen reduction reaction at LaSrMnO3-YSZ composite electrodes [J].
Co, AC ;
Xia, SJ ;
Birss, VI .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (03) :A570-A576
[6]   NON-LINEAR TEMPERATURE-DEPENDENCE OF THE RESISTIVITY OF LA-SR-CU-O - EFFECTS OF SR CONTENT [J].
DECCA, R ;
OSQUIGUIL, E ;
DELACRUZ, F ;
DOVIDIO, C ;
MALACHEVSKI, MT ;
ESPARZA, D .
SOLID STATE COMMUNICATIONS, 1989, 69 (04) :355-357
[7]   CRYSTAL-CHEMISTRY AND SUPERCONDUCTIVITY OF THE COPPER OXIDES [J].
GOODENOUGH, JB ;
MANTHIRAM, A .
JOURNAL OF SOLID STATE CHEMISTRY, 1990, 88 (01) :115-139
[8]   Active sites imaging for oxygen reduction at the La0.9Sr0.1MnO3-x/yttria-stabilized zirconia interface by secondary-ion mass spectrometry [J].
Horita, T ;
Yamaji, K ;
Ishikawa, M ;
Sakai, N ;
Yokokawa, H ;
Kawada, T ;
Kato, T .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1998, 145 (09) :3196-3202
[9]   Defect chemistry of La2-xSrxCuO4-delta: Oxygen nonstoichiometry and thermodynamic stability [J].
Kanai, H ;
Mizusaki, J ;
Tagawa, H ;
Hoshiyama, S ;
Hirano, K ;
Fujita, K ;
Tezuka, M ;
Hashimoto, T .
JOURNAL OF SOLID STATE CHEMISTRY, 1997, 131 (01) :150-159
[10]   Characterization of LSM-YSZ composite electrode by ac impedance spectroscopy [J].
Kim, JD ;
Kim, GD ;
Moon, JW ;
Park, YI ;
Lee, WH ;
Kobayashi, K ;
Nagai, M ;
Kim, CE .
SOLID STATE IONICS, 2001, 143 (3-4) :379-389
123