Cathodic reaction of perovskite oxide electrodes on a proton conducting electrolyte

K. Suzuki; S. Hashimoto; K. Yashiro; K. Amezawa; T. Kawada

doi:10.1149/05701.1985ecst

Cathodic reaction of perovskite oxide electrodes on a proton conducting electrolyte

K. Suzuki, S. Hashimoto, K. Yashiro, K. Amezawa, T. Kawada

ENV - Environmental Studies for Advanced Society

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

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Abstract

Cathodic reaction of protonic ceramic fuel cells (PCFCs) using SrZrO ₃ based proton conducting electrolyte with perovskite oxide cathode is studied. A dense La_0.6Sr_0.4CoO₃ (LSC) film is fabricated on 10mol% Y-doped SrZrO3 (SZY) electrolyte using pulsed laser deposition (PLD) method as a cathode. Cathodic performance of the dense LSC electrode is evaluated using AC impedance measurement and Secondary Ion Mass Spectroscopy (SIMS) analysis. Impedance spectra suggest that LSC dense film play a role as proton blocking electrode. SIMS analysis reveals that proton concentration in LSC dense film is higher than bulk of LSC, and there is no concentration gradient in LSC and SZY. Therefore, it is suggested that proton surface exchange rate of LSC is very low.

Original language	English
Pages (from-to)	1985-1992
Number of pages	8
Journal	ECS Transactions
Volume	57
Issue number	1
DOIs	https://doi.org/10.1149/05701.1985ecst
Publication status	Published - 2013

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Engineering(all)

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title = "Cathodic reaction of perovskite oxide electrodes on a proton conducting electrolyte",

abstract = "Cathodic reaction of protonic ceramic fuel cells (PCFCs) using SrZrO 3 based proton conducting electrolyte with perovskite oxide cathode is studied. A dense La0.6Sr0.4CoO3 (LSC) film is fabricated on 10mol% Y-doped SrZrO3 (SZY) electrolyte using pulsed laser deposition (PLD) method as a cathode. Cathodic performance of the dense LSC electrode is evaluated using AC impedance measurement and Secondary Ion Mass Spectroscopy (SIMS) analysis. Impedance spectra suggest that LSC dense film play a role as proton blocking electrode. SIMS analysis reveals that proton concentration in LSC dense film is higher than bulk of LSC, and there is no concentration gradient in LSC and SZY. Therefore, it is suggested that proton surface exchange rate of LSC is very low.",

author = "K. Suzuki and S. Hashimoto and K. Yashiro and K. Amezawa and T. Kawada",

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TY - JOUR

T1 - Cathodic reaction of perovskite oxide electrodes on a proton conducting electrolyte

AU - Suzuki, K.

AU - Hashimoto, S.

AU - Yashiro, K.

AU - Amezawa, K.

AU - Kawada, T.

PY - 2013

Y1 - 2013

N2 - Cathodic reaction of protonic ceramic fuel cells (PCFCs) using SrZrO 3 based proton conducting electrolyte with perovskite oxide cathode is studied. A dense La0.6Sr0.4CoO3 (LSC) film is fabricated on 10mol% Y-doped SrZrO3 (SZY) electrolyte using pulsed laser deposition (PLD) method as a cathode. Cathodic performance of the dense LSC electrode is evaluated using AC impedance measurement and Secondary Ion Mass Spectroscopy (SIMS) analysis. Impedance spectra suggest that LSC dense film play a role as proton blocking electrode. SIMS analysis reveals that proton concentration in LSC dense film is higher than bulk of LSC, and there is no concentration gradient in LSC and SZY. Therefore, it is suggested that proton surface exchange rate of LSC is very low.

AB - Cathodic reaction of protonic ceramic fuel cells (PCFCs) using SrZrO 3 based proton conducting electrolyte with perovskite oxide cathode is studied. A dense La0.6Sr0.4CoO3 (LSC) film is fabricated on 10mol% Y-doped SrZrO3 (SZY) electrolyte using pulsed laser deposition (PLD) method as a cathode. Cathodic performance of the dense LSC electrode is evaluated using AC impedance measurement and Secondary Ion Mass Spectroscopy (SIMS) analysis. Impedance spectra suggest that LSC dense film play a role as proton blocking electrode. SIMS analysis reveals that proton concentration in LSC dense film is higher than bulk of LSC, and there is no concentration gradient in LSC and SZY. Therefore, it is suggested that proton surface exchange rate of LSC is very low.

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DO - 10.1149/05701.1985ecst

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SP - 1985

EP - 1992

JO - ECS Transactions

JF - ECS Transactions

IS - 1

ER -

Cathodic reaction of perovskite oxide electrodes on a proton conducting electrolyte

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