Long-Term Stability of LSM-YSZ Based Cathodes

Laura Baqué; Peter Stanley Jørgensen; Karin Vels Hansen; Martin Søgaard

doi:10.1149/05701.2027ecst

Long-Term Stability of LSM-YSZ Based Cathodes

Laura Baqué
, Peter Stanley Jørgensen
, Karin Vels Hansen
, Martin Søgaard

Department of Energy Conversion and Storage

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

Abstract

A transmission line based model was successfully applied to study the ageing effect in LSM-YSZ cathodes after being exposed to humidified air at 900 °C for up to 3000 h. A decrease in the YSZ conductivity was correlated with the formation of the less conducting monoclinic zirconia. The amount of La2Zr2O7, present in the non-aged samples, decreases with ageing time increasing the number of active sites for charge transfer between LSM and YSZ as well as the LSM conductivity values.

Original language	English
Journal	E C S Transactions
Volume	57
Issue number	1
Pages (from-to)	2027-2036
ISSN	1938-5862
DOIs	https://doi.org/10.1149/05701.2027ecst
Publication status	Published - 2013
Event	13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII) - Okinawa, Japan Duration: 6 Oct 2013 → 11 Oct 2013 Conference number: 13

Conference

Conference	13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII)
Number	13
Country/Territory	Japan
City	Okinawa
Period	06/10/2013 → 11/10/2013

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title = "Long-Term Stability of LSM-YSZ Based Cathodes",

abstract = "A transmission line based model was successfully applied to study the ageing effect in LSM-YSZ cathodes after being exposed to humidified air at 900 °C for up to 3000 h. A decrease in the YSZ conductivity was correlated with the formation of the less conducting monoclinic zirconia. The amount of La2Zr2O7, present in the non-aged samples, decreases with ageing time increasing the number of active sites for charge transfer between LSM and YSZ as well as the LSM conductivity values.",

author = "Laura Baqu{\'e} and J{\o}rgensen, \{Peter Stanley\} and Hansen, \{Karin Vels\} and Martin S{\o}gaard",

year = "2013",

doi = "10.1149/05701.2027ecst",

language = "English",

volume = "57",

pages = "2027--2036",

journal = "E C S Transactions",

issn = "1938-5862",

publisher = "The Electrochemical Society",

number = "1",

note = "13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII), SOFC ; Conference date: 06-10-2013 Through 11-10-2013",

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T1 - Long-Term Stability of LSM-YSZ Based Cathodes

AU - Baqué, Laura

AU - Jørgensen, Peter Stanley

AU - Hansen, Karin Vels

AU - Søgaard, Martin

N1 - Conference code: 13

PY - 2013

Y1 - 2013

N2 - A transmission line based model was successfully applied to study the ageing effect in LSM-YSZ cathodes after being exposed to humidified air at 900 °C for up to 3000 h. A decrease in the YSZ conductivity was correlated with the formation of the less conducting monoclinic zirconia. The amount of La2Zr2O7, present in the non-aged samples, decreases with ageing time increasing the number of active sites for charge transfer between LSM and YSZ as well as the LSM conductivity values.

AB - A transmission line based model was successfully applied to study the ageing effect in LSM-YSZ cathodes after being exposed to humidified air at 900 °C for up to 3000 h. A decrease in the YSZ conductivity was correlated with the formation of the less conducting monoclinic zirconia. The amount of La2Zr2O7, present in the non-aged samples, decreases with ageing time increasing the number of active sites for charge transfer between LSM and YSZ as well as the LSM conductivity values.

U2 - 10.1149/05701.2027ecst

DO - 10.1149/05701.2027ecst

M3 - Conference article

SN - 1938-5862

VL - 57

SP - 2027

EP - 2036

JO - E C S Transactions

JF - E C S Transactions

IS - 1

T2 - 13th International Symposium on Solid Oxide Fuel Cells (SOFC-XIII)

Y2 - 6 October 2013 through 11 October 2013

ER -

Long-Term Stability of LSM-YSZ Based Cathodes

Abstract

Conference

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