Electrochemical characteristics of cathodes based on perovskites modified by ceria

E. Yu. Konysheva; Alfredo Damiano Bonaccorso; J. T. S. Irvine

doi:10.1134/S1023193510070141

Electrochemical characteristics of cathodes based on perovskites modified by ceria

E. Yu. Konysheva, Alfredo Damiano Bonaccorso, J. T. S. Irvine

University of St Andrews

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A system consisting of a solid oxide electrolyte of the Ce_0.9Gd_0.1O_{2 − x} (CGO) composition in contact with a two-layer cathode based on a nonstoichiometric composition (La_0.8Sr_0.2)_0.95MnO_{3 ± δ} (LSM1) and a stoichiometric perovskite La_0.8Sr_0.2MnO_{3 ± δ} (LSM2) is prepared by the tape-casting process. It was shown that the best electrochemical characteristics are achieved for a three-layer system LSM2/{CGO-LSM1}/CGO sintered at 1410°C. The use of Ce-modified perovskites La_0.8Sr_0.2MnO_{3 ± δ} and La_0.6Sr_0.6CoO_{3 ± δ} as the collector layer of two-layer electrodes allows the electrochemical characteristics at moderately high temperatures (600–750°C) to be improved.

Original language	English
Journal	Russian Journal of Electrochemistry
Volume	46
Issue number	7
Pages (from-to)	805-810
ISSN	1023-1935
DOIs	https://doi.org/10.1134/S1023193510070141
Publication status	Published - 2010
Externally published	Yes

Keywords

Solid-oxide electrolyte
Compositions based on lanthanumstrontium manganites and cobaltites
Solid oxide fuel cell

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title = "Electrochemical characteristics of cathodes based on perovskites modified by ceria",

abstract = "A system consisting of a solid oxide electrolyte of the Ce0.9Gd0.1O2 − x (CGO) composition in contact with a two-layer cathode based on a nonstoichiometric composition (La0.8Sr0.2)0.95MnO3 ± δ (LSM1) and a stoichiometric perovskite La0.8Sr0.2MnO3 ± δ (LSM2) is prepared by the tape-casting process. It was shown that the best electrochemical characteristics are achieved for a three-layer system LSM2/{CGO-LSM1}/CGO sintered at 1410°C. The use of Ce-modified perovskites La0.8Sr0.2MnO3 ± δ and La0.6Sr0.6CoO3 ± δ as the collector layer of two-layer electrodes allows the electrochemical characteristics at moderately high temperatures (600–750°C) to be improved.",

keywords = "Solid-oxide electrolyte, Compositions based on lanthanumstrontium manganites and cobaltites, Solid oxide fuel cell",

author = "Konysheva, {E. Yu.} and Bonaccorso, {Alfredo Damiano} and Irvine, {J. T. S.}",

year = "2010",

doi = "10.1134/S1023193510070141",

language = "English",

volume = "46",

pages = "805--810",

journal = "Russian Journal of Electrochemistry",

issn = "1023-1935",

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TY - JOUR

T1 - Electrochemical characteristics of cathodes based on perovskites modified by ceria

AU - Konysheva, E. Yu.

AU - Bonaccorso, Alfredo Damiano

AU - Irvine, J. T. S.

PY - 2010

Y1 - 2010

N2 - A system consisting of a solid oxide electrolyte of the Ce0.9Gd0.1O2 − x (CGO) composition in contact with a two-layer cathode based on a nonstoichiometric composition (La0.8Sr0.2)0.95MnO3 ± δ (LSM1) and a stoichiometric perovskite La0.8Sr0.2MnO3 ± δ (LSM2) is prepared by the tape-casting process. It was shown that the best electrochemical characteristics are achieved for a three-layer system LSM2/{CGO-LSM1}/CGO sintered at 1410°C. The use of Ce-modified perovskites La0.8Sr0.2MnO3 ± δ and La0.6Sr0.6CoO3 ± δ as the collector layer of two-layer electrodes allows the electrochemical characteristics at moderately high temperatures (600–750°C) to be improved.

AB - A system consisting of a solid oxide electrolyte of the Ce0.9Gd0.1O2 − x (CGO) composition in contact with a two-layer cathode based on a nonstoichiometric composition (La0.8Sr0.2)0.95MnO3 ± δ (LSM1) and a stoichiometric perovskite La0.8Sr0.2MnO3 ± δ (LSM2) is prepared by the tape-casting process. It was shown that the best electrochemical characteristics are achieved for a three-layer system LSM2/{CGO-LSM1}/CGO sintered at 1410°C. The use of Ce-modified perovskites La0.8Sr0.2MnO3 ± δ and La0.6Sr0.6CoO3 ± δ as the collector layer of two-layer electrodes allows the electrochemical characteristics at moderately high temperatures (600–750°C) to be improved.

KW - Solid-oxide electrolyte

KW - Compositions based on lanthanumstrontium manganites and cobaltites

KW - Solid oxide fuel cell

U2 - 10.1134/S1023193510070141

DO - 10.1134/S1023193510070141

M3 - Journal article

SN - 1023-1935

VL - 46

SP - 805

EP - 810

JO - Russian Journal of Electrochemistry

JF - Russian Journal of Electrochemistry

IS - 7

ER -

Electrochemical characteristics of cathodes based on perovskites modified by ceria

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Keywords

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