@inproceedings{0f47465ad28743a9afd1e593f35f889a,
title = "Electrochemical performance of solid oxide cell oxygen electrodes under pressurization",
abstract = "The solid oxide cell (SOC) composite oxygen electrodes (La0.8Sr0.2)0.98MnO3-δ - Zr0.84Y0.16O2-γ (LSM-YSZ) and La0.6Sr0.4Fe0.8Co0.2O3-δ (LSCF) - Ce0.8Gd0.2O1.95 (LSCF-GDC) were studied at oxygen partial pressure pO2 from 0.1 to 10 atm by impedance spectroscopy. Both electrodes showed a main response at frequency < 100 Hz that decreased in size and frequency with increasing pO2, and a smaller response at ∼ 103 Hz. The impedance spectra were fit using an equivalent circuit model with two RQ elements. Total electrode resistances decreased with increasing pO2 following a pO2-0.17 dependence for LSM-YSZ and a pO2-0.20 dependence for LSCF-GDC. Overall, the area-specific resistance of these oxygen electrodes is reduced by a factor of ∼2 by increasing oxygen pressure from a nominal 0.2 atm (air) to 10 atm, thereby improving SOC performance.",
author = "Hughes, {Gareth A.} and Justin Railsback and Butts, {Danielle M.} and Barnett, {Scott A.}",
note = "Publisher Copyright: {\textcopyright} The Electrochemical Society.; 14th International Symposium on Solid Oxide Fuel Cells, SOFC 2015; held as part of the Electrochemical Society, ECS Conference on Electrochemical Energy Conversion and Storage ; Conference date: 26-07-2015 Through 31-07-2015",
year = "2015",
doi = "10.1149/06801.0687ecst",
language = "English (US)",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "1",
pages = "687--697",
editor = "K. Eguchi and Singhal, {S. C.}",
booktitle = "Solid Oxide Fuel Cells 14, SOFC 2015",
edition = "1",
}