Effect of Humidity in Air on Performance and Long-Term Durability of SOFCs

Research output: Contribution to journalJournal article – Annual report year: 2010Researchpeer-review

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Effect of Humidity in Air on Performance and Long-Term Durability of SOFCs. / Hagen, Anke; Neufeld, Kai; Liu, Yi-Lin.

In: Journal of The Electrochemical Society, Vol. 157, No. 10, 2010, p. B1343-B1348.

Research output: Contribution to journalJournal article – Annual report year: 2010Researchpeer-review

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@article{fae8e3c069f1473398ead5d44cc21914,
title = "Effect of Humidity in Air on Performance and Long-Term Durability of SOFCs",
abstract = "Anode-supported solid oxide fuel cells (SOFCs) based on Ni–yttria-stabilized zirconia (YSZ) anodes, YSZ electrolytes, and lanthanum strontium manganite (LSM)–YSZ cathodes were studied with respect to durability in humid air (~4{\%}) typically over 1500 h. Operating temperature and current density were varied between 750 and 850°C and 0.25–0.75 A/cm2, respectively. The introduction of humidity affected the cell voltage under polarization of the cell, and this effect was (at least partly) reversible upon switching off the humidity. Generally, the studied cells were operated in humid air under technologically relevant conditions over more than 1500 h. Improvements at the cathode/electrolyte interface made it possible to obtain highly stable cells, which can be operated under high current density and at 750°C in humid air, conditions that cause significant cell voltage degradation in dry air on cells with LSM/YSZ-based cathodes.",
keywords = "Solid Oxide Fuel Cells, Fuel Cells and Hydrogen, Br{\ae}ndselsceller og brint",
author = "Anke Hagen and Kai Neufeld and Yi-Lin Liu",
note = "Copyright The Electrochemical Society, Inc. [2010]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).",
year = "2010",
doi = "10.1149/1.3459904",
language = "English",
volume = "157",
pages = "B1343--B1348",
journal = "Journal of The Electrochemical Society",
issn = "0013-4651",
publisher = "The Electrochemical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Effect of Humidity in Air on Performance and Long-Term Durability of SOFCs

AU - Hagen, Anke

AU - Neufeld, Kai

AU - Liu, Yi-Lin

N1 - Copyright The Electrochemical Society, Inc. [2010]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).

PY - 2010

Y1 - 2010

N2 - Anode-supported solid oxide fuel cells (SOFCs) based on Ni–yttria-stabilized zirconia (YSZ) anodes, YSZ electrolytes, and lanthanum strontium manganite (LSM)–YSZ cathodes were studied with respect to durability in humid air (~4%) typically over 1500 h. Operating temperature and current density were varied between 750 and 850°C and 0.25–0.75 A/cm2, respectively. The introduction of humidity affected the cell voltage under polarization of the cell, and this effect was (at least partly) reversible upon switching off the humidity. Generally, the studied cells were operated in humid air under technologically relevant conditions over more than 1500 h. Improvements at the cathode/electrolyte interface made it possible to obtain highly stable cells, which can be operated under high current density and at 750°C in humid air, conditions that cause significant cell voltage degradation in dry air on cells with LSM/YSZ-based cathodes.

AB - Anode-supported solid oxide fuel cells (SOFCs) based on Ni–yttria-stabilized zirconia (YSZ) anodes, YSZ electrolytes, and lanthanum strontium manganite (LSM)–YSZ cathodes were studied with respect to durability in humid air (~4%) typically over 1500 h. Operating temperature and current density were varied between 750 and 850°C and 0.25–0.75 A/cm2, respectively. The introduction of humidity affected the cell voltage under polarization of the cell, and this effect was (at least partly) reversible upon switching off the humidity. Generally, the studied cells were operated in humid air under technologically relevant conditions over more than 1500 h. Improvements at the cathode/electrolyte interface made it possible to obtain highly stable cells, which can be operated under high current density and at 750°C in humid air, conditions that cause significant cell voltage degradation in dry air on cells with LSM/YSZ-based cathodes.

KW - Solid Oxide Fuel Cells

KW - Fuel Cells and Hydrogen

KW - Brændselsceller og brint

U2 - 10.1149/1.3459904

DO - 10.1149/1.3459904

M3 - Journal article

VL - 157

SP - B1343-B1348

JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

SN - 0013-4651

IS - 10

ER -