Composite Oxygen Electrode Based on LSCM for Steam Electrolysis in a Proton Conducting Solid Oxide Electrolyzer

Yun Gan; Jun Zhang; Yuanxin Li; Shisong Li; Kui Xie; John T. S. Irvine

doi:10.1149/2.018212jes

Composite Oxygen Electrode Based on LSCM for Steam Electrolysis in a Proton Conducting Solid Oxide Electrolyzer

Yun Gan, Jun Zhang, Yuanxin Li, Shisong Li, Kui Xie, John T. S. Irvine

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

Abstract

This paper presents a ceramic composite oxygen electrode (La0.75Sr0.25)(0.95)Mn0.5Cr0.5O3-delta (LSCM) - BaCe0.5Zr0.3Y0.16Zn0.04O3-delta (BCZYZ) for steam electrolysis in a proton-conducting Solid Oxide Electrolyzer (SOE) with proton conducting electrolyte BCZYZ and fuel electrode BCZYZ/Ni at 700 degrees C. AC impedance spectroscopy and I-V tests demonstrate two main processes from 0 to 2 V with 3% H2O/N-2 vs 5% H-2/Ar: reoxidation of the LSCM electrode below 1.2 V and oxidation of H2O above 1.2 V. The current density reaches 2 Acm(-2) at 2 V with electrode polarization of 0.1 Omega cm(2) and steam electrolysis shows short term stability with current efficiency of 22%. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.018212jes] All rights reserved.

Original language	English
Pages (from-to)	F763-F767
Number of pages	5
Journal	Journal of The Electrochemical Society
Volume	159
Issue number	11
DOIs	https://doi.org/10.1149/2.018212jes
Publication status	Published - 2012

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10.1149/2.018212jes

Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology
Irvine, J. T. S. (PI), Cassidy, M. (CoI), Connor, P. A. (CoI), Savaniu, C. D. (CoI) & Tao, S. (CoI)
EPSRC
1/01/08 → 31/12/12
Project: Standard

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@article{59203835e1ab46b28dd7ec7951bd5c92,

title = "Composite Oxygen Electrode Based on LSCM for Steam Electrolysis in a Proton Conducting Solid Oxide Electrolyzer",

abstract = "This paper presents a ceramic composite oxygen electrode (La0.75Sr0.25)(0.95)Mn0.5Cr0.5O3-delta (LSCM) - BaCe0.5Zr0.3Y0.16Zn0.04O3-delta (BCZYZ) for steam electrolysis in a proton-conducting Solid Oxide Electrolyzer (SOE) with proton conducting electrolyte BCZYZ and fuel electrode BCZYZ/Ni at 700 degrees C. AC impedance spectroscopy and I-V tests demonstrate two main processes from 0 to 2 V with 3% H2O/N-2 vs 5% H-2/Ar: reoxidation of the LSCM electrode below 1.2 V and oxidation of H2O above 1.2 V. The current density reaches 2 Acm(-2) at 2 V with electrode polarization of 0.1 Omega cm(2) and steam electrolysis shows short term stability with current efficiency of 22%. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.018212jes] All rights reserved.",

author = "Yun Gan and Jun Zhang and Yuanxin Li and Shisong Li and Kui Xie and Irvine, {John T. S.}",

year = "2012",

doi = "10.1149/2.018212jes",

language = "English",

volume = "159",

pages = "F763--F767",

journal = "Journal of The Electrochemical Society",

issn = "0013-4651",

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TY - JOUR

T1 - Composite Oxygen Electrode Based on LSCM for Steam Electrolysis in a Proton Conducting Solid Oxide Electrolyzer

AU - Gan, Yun

AU - Zhang, Jun

AU - Li, Yuanxin

AU - Li, Shisong

AU - Xie, Kui

AU - Irvine, John T. S.

PY - 2012

Y1 - 2012

N2 - This paper presents a ceramic composite oxygen electrode (La0.75Sr0.25)(0.95)Mn0.5Cr0.5O3-delta (LSCM) - BaCe0.5Zr0.3Y0.16Zn0.04O3-delta (BCZYZ) for steam electrolysis in a proton-conducting Solid Oxide Electrolyzer (SOE) with proton conducting electrolyte BCZYZ and fuel electrode BCZYZ/Ni at 700 degrees C. AC impedance spectroscopy and I-V tests demonstrate two main processes from 0 to 2 V with 3% H2O/N-2 vs 5% H-2/Ar: reoxidation of the LSCM electrode below 1.2 V and oxidation of H2O above 1.2 V. The current density reaches 2 Acm(-2) at 2 V with electrode polarization of 0.1 Omega cm(2) and steam electrolysis shows short term stability with current efficiency of 22%. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.018212jes] All rights reserved.

AB - This paper presents a ceramic composite oxygen electrode (La0.75Sr0.25)(0.95)Mn0.5Cr0.5O3-delta (LSCM) - BaCe0.5Zr0.3Y0.16Zn0.04O3-delta (BCZYZ) for steam electrolysis in a proton-conducting Solid Oxide Electrolyzer (SOE) with proton conducting electrolyte BCZYZ and fuel electrode BCZYZ/Ni at 700 degrees C. AC impedance spectroscopy and I-V tests demonstrate two main processes from 0 to 2 V with 3% H2O/N-2 vs 5% H-2/Ar: reoxidation of the LSCM electrode below 1.2 V and oxidation of H2O above 1.2 V. The current density reaches 2 Acm(-2) at 2 V with electrode polarization of 0.1 Omega cm(2) and steam electrolysis shows short term stability with current efficiency of 22%. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.018212jes] All rights reserved.

U2 - 10.1149/2.018212jes

DO - 10.1149/2.018212jes

M3 - Article

SN - 0013-4651

VL - 159

SP - F763-F767

JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

IS - 11

ER -

Composite Oxygen Electrode Based on LSCM for Steam Electrolysis in a Proton Conducting Solid Oxide Electrolyzer

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Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology

Cite this