Electrical property, crystal structure and oxygen nonstoichiometry of La1-xSrxCo0.2Fe0.8O3-δ

被引：14

作者：

Mineshige, A ^{[1
]}

Izutsu, J

Nakamura, M

Nigaki, K

Kobune, M

Fujii, S

Inaba, M

Ogumi, Z

Yao, T

机构：

[1] Himeji Inst Technol, Dept Appl Chem, Himeji, Hyogo 6712201, Japan

[2] Kyoto Univ, Grad Sch Engn, Dept Energy & Hydrocarbon Chem, Sakyo Ku, Kyoto 6068501, Japan

[3] Kyoto Univ, Grad Sch Engn, Dept Fundamental Energy Sci, Sakyo Ku, Kyoto 6068501, Japan

来源：

ELECTROCHEMISTRY | 2000年 / 68卷 / 06期

关键词：

mixed conductor; nonstoichiometry; solid oxide fuel cell;

D O I：

10.5796/electrochemistry.68.515

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrical conductivity of mixed conducting perovskite-type oxide, La1-xSrxCo0.2Fe0.8O3-delta (LSCF, 0.4 less than or equal to x less than or equal to 0.7) was determined as functions of Sr-content (x), temperature (T) and oxygen partial pressure [P (O-2)]. Crystal structure and oxygen nonstoichiometry (delta) of LSCF was evaluated and correlated with its electrical property. The electrical conductivity (sigma) in LSCF was greatly affected by oxygen nonstoichiometry and B-O-B angle (B; B-site elements) in the crystal.

引用

收藏

页码：515 / 518

页数：4

相关论文

共 19 条

[1] IMMITTANCE RESPONSE OF LA0.6SR0.4CO0.2FE0.8O3 BASED ELECTROCHEMICAL-CELLS [J].

CHEN, CC ;

NASRALLAH, MM ;

ANDERSON, HU .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (02) :491-496

[2] SYNTHESIS AND CHARACTERIZATION OF (CEO2)(0.8)(SMO1.5)(0.2) THIN-FILMS FROM POLYMERIC PRECURSORS [J].

CHEN, CC ;

NASRALLAH, MM ;

ANDERSON, HU .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1993, 140 (12) :3555-3560

[3] MAGNETIC COMPOUNDS WITH PEROVSKITE STRUCTURE .3. FERROMAGNETIC COMPOUNDS OF COBALT [J].

JONKER, GH ;

VANSANTEN, JH .

PHYSICA, 1953, 19 (01) :120-130

[4] Thermodynamic quantities and defect structure of La0.6Sr0.4Co1-yFeyO3-delta(y=0-0.6) from high-temperature coulometric titration experiments [J].

Lankhorst, MHR ;

tenElshof, JE .

JOURNAL OF SOLID STATE CHEMISTRY, 1997, 130 (02) :302-310

[5] OXYGEN EVOLUTION ON LA1-XSRXFE1-YCOYO3 SERIES OXIDES [J].

MATSUMOTO, Y ;

YAMADA, S ;

NISHIDA, T ;

SATO, E .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1980, 127 (11) :2360-2364

[6] Metal-insulator transition and crystal structure of La1-xSrxCoO3 as functions of Sr-content, temperature, and oxygen partial pressure [J].

Mineshige, A ;

Kobune, M ;

Fujii, S ;

Ogumi, Z ;

Inaba, M ;

Yao, T ;

Kikuchi, K .

JOURNAL OF SOLID STATE CHEMISTRY, 1999, 142 (02) :374-381

[7] Crystal structure and metal-insulator transition of La1-xSrxCoO3 [J].

Mineshige, A ;

Inaba, M ;

Yao, TS ;

Ogumi, Z ;

Kikuchi, K ;

Kawase, M .

JOURNAL OF SOLID STATE CHEMISTRY, 1996, 121 (02) :423-429

[8] ELECTRICAL-CONDUCTIVITY AND SEEBECK COEFFICIENT OF NONSTOICHIOMETRIC LA1-XSRXCOO3-DELTA [J].

MIZUSAKI, J ;

TABUCHI, J ;

MATSUURA, T ;

YAMAUCHI, S ;

FUEKI, K .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (07) :2082-2088

[9] NONSTOICHIOMETRY OF THE PEROVSKITE-TYPE OXIDES LA1-XSRXCOO3-OMEGA [J].

MIZUSAKI, J ;

MIMA, Y ;

YAMAUCHI, S ;

FUEKI, K ;

TAGAWA, H .

JOURNAL OF SOLID STATE CHEMISTRY, 1989, 80 (01) :102-111

[10] NONSTOICHIOMETRY, DIFFUSION, AND ELECTRICAL-PROPERTIES OF PEROVSKITE-TYPE OXIDE ELECTRODE MATERIALS [J].

MIZUSAKI, J .

SOLID STATE IONICS, 1992, 52 (1-3) :79-91