Mixed oxide ion and electronic conductivity in perovskite-type SrSnO3 by Fe substitution

V. Thangadurai; P. Schmid Beurmann; W. Weppner

doi:10.1016/S0921-5107(02)00613-X

Mixed oxide ion and electronic conductivity in perovskite-type SrSnO₃ by Fe substitution

V. Thangadurai, P. Schmid Beurmann, W. Weppner^*

^*Corresponding author for this work

School of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The electrical conductivity properties of Fe-substituted SrSnO₃ perovskite-type oxides as a function of temperature and oxygen partial pressure are presented. SrSn_1-xFe_xO_3-δ (0≤x≤1) was prepared by conventional solid state reaction in air using SrCO₃, SnO₂ and FeC₂O₄ · 2H₂O. The total electrical conductivity increases with increasing Fe content. Compounds containing low Fe contents (x<0.5) are mixed oxide ion and electronic conductors in the oxygen partial pressure range between 10^-23 and 0.21 atm with predominant n-type and p-type electronic conduction at low and high oxygen partial pressure, respectively. SrSn_1-xFe_xO_3-δ with high Fe-content (x > 0.5) is found to be a predominant electronic conductor over the entire oxygen partial pressure regime (10^-23-0.21 atm). The average oxide ion transference number is found to be in the range 0.1-0.5 at 600-850 °C for x = 0.1-0.2.

Original language	English
Pages (from-to)	18-22
Number of pages	5
Journal	Materials Science and Engineering: B
Volume	100
Issue number	1
DOIs	https://doi.org/10.1016/S0921-5107(02)00613-X
Publication status	Published - 15 Jun 2003

Keywords

Conductivity
Oxide ion
SrSnO

Access to Document

10.1016/S0921-5107(02)00613-X

Cite this

@article{37d599d0c54944da9547169be3460dda,

title = "Mixed oxide ion and electronic conductivity in perovskite-type SrSnO3 by Fe substitution",

abstract = "The electrical conductivity properties of Fe-substituted SrSnO3 perovskite-type oxides as a function of temperature and oxygen partial pressure are presented. SrSn1-xFexO3-δ (0≤x≤1) was prepared by conventional solid state reaction in air using SrCO3, SnO2 and FeC2O4 · 2H2O. The total electrical conductivity increases with increasing Fe content. Compounds containing low Fe contents (x<0.5) are mixed oxide ion and electronic conductors in the oxygen partial pressure range between 10-23 and 0.21 atm with predominant n-type and p-type electronic conduction at low and high oxygen partial pressure, respectively. SrSn1-xFexO3-δ with high Fe-content (x > 0.5) is found to be a predominant electronic conductor over the entire oxygen partial pressure regime (10-23-0.21 atm). The average oxide ion transference number is found to be in the range 0.1-0.5 at 600-850 °C for x = 0.1-0.2.",

keywords = "Conductivity, Oxide ion, SrSnO",

author = "V. Thangadurai and {Schmid Beurmann}, P. and W. Weppner",

year = "2003",

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TY - JOUR

T1 - Mixed oxide ion and electronic conductivity in perovskite-type SrSnO3 by Fe substitution

AU - Thangadurai, V.

AU - Schmid Beurmann, P.

AU - Weppner, W.

PY - 2003/6/15

Y1 - 2003/6/15

N2 - The electrical conductivity properties of Fe-substituted SrSnO3 perovskite-type oxides as a function of temperature and oxygen partial pressure are presented. SrSn1-xFexO3-δ (0≤x≤1) was prepared by conventional solid state reaction in air using SrCO3, SnO2 and FeC2O4 · 2H2O. The total electrical conductivity increases with increasing Fe content. Compounds containing low Fe contents (x<0.5) are mixed oxide ion and electronic conductors in the oxygen partial pressure range between 10-23 and 0.21 atm with predominant n-type and p-type electronic conduction at low and high oxygen partial pressure, respectively. SrSn1-xFexO3-δ with high Fe-content (x > 0.5) is found to be a predominant electronic conductor over the entire oxygen partial pressure regime (10-23-0.21 atm). The average oxide ion transference number is found to be in the range 0.1-0.5 at 600-850 °C for x = 0.1-0.2.

AB - The electrical conductivity properties of Fe-substituted SrSnO3 perovskite-type oxides as a function of temperature and oxygen partial pressure are presented. SrSn1-xFexO3-δ (0≤x≤1) was prepared by conventional solid state reaction in air using SrCO3, SnO2 and FeC2O4 · 2H2O. The total electrical conductivity increases with increasing Fe content. Compounds containing low Fe contents (x<0.5) are mixed oxide ion and electronic conductors in the oxygen partial pressure range between 10-23 and 0.21 atm with predominant n-type and p-type electronic conduction at low and high oxygen partial pressure, respectively. SrSn1-xFexO3-δ with high Fe-content (x > 0.5) is found to be a predominant electronic conductor over the entire oxygen partial pressure regime (10-23-0.21 atm). The average oxide ion transference number is found to be in the range 0.1-0.5 at 600-850 °C for x = 0.1-0.2.

KW - Conductivity

KW - Oxide ion

KW - SrSnO

U2 - 10.1016/S0921-5107(02)00613-X

DO - 10.1016/S0921-5107(02)00613-X

M3 - Article

AN - SCOPUS:0038480199

SN - 0921-5107

VL - 100

SP - 18

EP - 22

JO - Materials Science and Engineering: B

JF - Materials Science and Engineering: B

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