Electrochemical characteristics of cathodes based on perovskites modified by ceria

E. Yu Konysheva; A. D. Bonaccorso; J. T.S. Irvine

doi:10.1134/S1023193510070141

Electrochemical characteristics of cathodes based on perovskites modified by ceria

E. Yu Konysheva, A. D. Bonaccorso, J. T.S. Irvine

Research output: Journal Publication › Article › peer-review

6 Citations (Scopus)

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
Pages (from-to)	805-810
Number of pages	6
Journal	Russian Journal of Electrochemistry
Volume	46
Issue number	7
DOIs	https://doi.org/10.1134/S1023193510070141
Publication status	Published - Jul 2010
Externally published	Yes

Keywords

compositions based on lanthanum-strontium manganites and cobaltites
solid oxide fuel cell
solid-oxide electrolyte

ASJC Scopus subject areas

Electrochemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1134/S1023193510070141

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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 Ce 0.9Gd0.1O2 - x (CGO) composition in contact with a two-layer cathode based on a nonstoichiometric composition (La 0.8Sr0.2)0.95MnO3 ± δ (LSM1) and a stoichiometric perovskite La0.8Sr0.2MnO 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 La0.8Sr0.2MnO 3 ± δ and La0.6Sr0.6CoO 3 ± δ as the collector layer of two-layer electrodes allows the electrochemical characteristics at moderately high temperatures (600-750°C) to be improved.",

keywords = "compositions based on lanthanum-strontium manganites and cobaltites, solid oxide fuel cell, solid-oxide electrolyte",

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

note = "Funding Information: The authors are grateful to the EPSRC (Engineer ing and Physical Science Research Council) for finan cial support of this study.",

year = "2010",

month = jul,

doi = "10.1134/S1023193510070141",

language = "English",

volume = "46",

pages = "805--810",

journal = "Russian Journal of Electrochemistry",

issn = "1023-1935",

publisher = "Pleiades Publishing",

number = "7",

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TY - JOUR

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

AU - Konysheva, E. Yu

AU - Bonaccorso, A. D.

AU - Irvine, J. T.S.

N1 - Funding Information: The authors are grateful to the EPSRC (Engineer ing and Physical Science Research Council) for finan cial support of this study.

PY - 2010/7

Y1 - 2010/7

N2 - A system consisting of a solid oxide electrolyte of the Ce 0.9Gd0.1O2 - x (CGO) composition in contact with a two-layer cathode based on a nonstoichiometric composition (La 0.8Sr0.2)0.95MnO3 ± δ (LSM1) and a stoichiometric perovskite La0.8Sr0.2MnO 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 La0.8Sr0.2MnO 3 ± δ and La0.6Sr0.6CoO 3 ± δ as the collector layer of two-layer electrodes allows the electrochemical characteristics at moderately high temperatures (600-750°C) to be improved.

AB - A system consisting of a solid oxide electrolyte of the Ce 0.9Gd0.1O2 - x (CGO) composition in contact with a two-layer cathode based on a nonstoichiometric composition (La 0.8Sr0.2)0.95MnO3 ± δ (LSM1) and a stoichiometric perovskite La0.8Sr0.2MnO 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 La0.8Sr0.2MnO 3 ± δ and La0.6Sr0.6CoO 3 ± δ as the collector layer of two-layer electrodes allows the electrochemical characteristics at moderately high temperatures (600-750°C) to be improved.

KW - compositions based on lanthanum-strontium manganites and cobaltites

KW - solid oxide fuel cell

KW - solid-oxide electrolyte

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U2 - 10.1134/S1023193510070141

DO - 10.1134/S1023193510070141

M3 - Article

AN - SCOPUS:77956524679

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

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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