Thin yttrium-stabilized zirconia electrolyte solid oxide fuel cells by centrifugal casting

Jiang Liu; Scott A. Barnett

doi:10.1111/j.1151-2916.2002.tb00588.x

Thin yttrium-stabilized zirconia electrolyte solid oxide fuel cells by centrifugal casting

Jiang Liu^*, Scott A. Barnett

^*Corresponding author for this work

Materials Science and Engineering

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

78 Scopus citations

Abstract

A centrifugal casting technique was developed for depositing thin 8-mol%-yttrium-stabilized zirconia (YSZ) electrolyte layers on porous NiO-YSZ anode substrates. After the bilayers were cosintered at 1400°C, dense pinhole-free YSZ coatings with thicknesses of ≈25 μm were obtained, while the Ni-YSZ retained porosity. After La_0.6Sr_0.4Co_0.2Fe_0.8O₃ (LSCF)-Ce_0.9Gd_0.1O_1.95 (GDC) or La_0.8Sr_0.2MnO₃ (LSM)-YSZ cathodes were deposited, single SOFCs produced near-theoretical open-circuit voltages and power densities of ≈1 W/cm² at 800°C. Impedance spectra measured during cell tests showed that polarization resistances accounted for ≈70%-80% of the total cell resistance.

Original language	English (US)
Pages (from-to)	3096-3098
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	85
Issue number	12
DOIs	https://doi.org/10.1111/j.1151-2916.2002.tb00588.x
State	Published - Dec 2002

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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title = "Thin yttrium-stabilized zirconia electrolyte solid oxide fuel cells by centrifugal casting",

abstract = "A centrifugal casting technique was developed for depositing thin 8-mol%-yttrium-stabilized zirconia (YSZ) electrolyte layers on porous NiO-YSZ anode substrates. After the bilayers were cosintered at 1400°C, dense pinhole-free YSZ coatings with thicknesses of ≈25 μm were obtained, while the Ni-YSZ retained porosity. After La0.6Sr0.4Co0.2Fe0.8O3 (LSCF)-Ce0.9Gd0.1O1.95 (GDC) or La0.8Sr0.2MnO3 (LSM)-YSZ cathodes were deposited, single SOFCs produced near-theoretical open-circuit voltages and power densities of ≈1 W/cm2 at 800°C. Impedance spectra measured during cell tests showed that polarization resistances accounted for ≈70%-80% of the total cell resistance.",

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T1 - Thin yttrium-stabilized zirconia electrolyte solid oxide fuel cells by centrifugal casting

AU - Liu, Jiang

AU - Barnett, Scott A.

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N2 - A centrifugal casting technique was developed for depositing thin 8-mol%-yttrium-stabilized zirconia (YSZ) electrolyte layers on porous NiO-YSZ anode substrates. After the bilayers were cosintered at 1400°C, dense pinhole-free YSZ coatings with thicknesses of ≈25 μm were obtained, while the Ni-YSZ retained porosity. After La0.6Sr0.4Co0.2Fe0.8O3 (LSCF)-Ce0.9Gd0.1O1.95 (GDC) or La0.8Sr0.2MnO3 (LSM)-YSZ cathodes were deposited, single SOFCs produced near-theoretical open-circuit voltages and power densities of ≈1 W/cm2 at 800°C. Impedance spectra measured during cell tests showed that polarization resistances accounted for ≈70%-80% of the total cell resistance.

AB - A centrifugal casting technique was developed for depositing thin 8-mol%-yttrium-stabilized zirconia (YSZ) electrolyte layers on porous NiO-YSZ anode substrates. After the bilayers were cosintered at 1400°C, dense pinhole-free YSZ coatings with thicknesses of ≈25 μm were obtained, while the Ni-YSZ retained porosity. After La0.6Sr0.4Co0.2Fe0.8O3 (LSCF)-Ce0.9Gd0.1O1.95 (GDC) or La0.8Sr0.2MnO3 (LSM)-YSZ cathodes were deposited, single SOFCs produced near-theoretical open-circuit voltages and power densities of ≈1 W/cm2 at 800°C. Impedance spectra measured during cell tests showed that polarization resistances accounted for ≈70%-80% of the total cell resistance.

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Thin yttrium-stabilized zirconia electrolyte solid oxide fuel cells by centrifugal casting

Abstract

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