Ceria based protective coatings for steel interconnects prepared by spray pyrolysis

Dagmara  Szymczewska; Sebastian Molin; Ming Chen; Peter Vang Hendriksen; Piotr  Jasinski

doi:10.1016/j.proeng.2014.12.493

Ceria based protective coatings for steel interconnects prepared by spray pyrolysis

Dagmara Szymczewska, Sebastian Molin, Ming Chen, Peter Vang Hendriksen, Piotr Jasinski

Department of Energy Conversion and Storage

Gdańsk University of Technology

Research output: Contribution to journal › Conference article › Research › peer-review

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Abstract

Stainless steels can be used in solid oxide fuel/electrolysis stacks as interconnects. For successful long term operation they require protective coatings, that lower the corrosion rate and block chemical reactions between the interconnect and adjacent layers of the oxygen or the hydrogen electrode. One of the promising coating materials for the hydrogen side is ceria. Using standard sintering techniques, ceria sinters at around 1400°C which even for a very short exposure would destroy the interconnect. Therefore in this paper a low temperature deposition method, i.e. spray pyrolysis, is used to deposit thin (~400 nm), continuous CeO2 layers on Crofer 22 APU steel substrates. Influence of the deposition parameters on layer quality is elucidated in this work.

Original language	English
Journal	Procedia Engineering
Volume	98
Pages (from-to)	93 – 100
ISSN	1877-7058
DOIs	https://doi.org/10.1016/j.proeng.2014.12.493
Publication status	Published - 2014
Event	11th International Symposium on Systems with Fast Ionic Transport - Gdansk-Sobieszewo, Poland Duration: 25 Jun 2014 → 29 Jun 2014 Conference number: 11

Conference

Conference	11th International Symposium on Systems with Fast Ionic Transport
Number	11
Country/Territory	Poland
City	Gdansk-Sobieszewo
Period	25/06/2014 → 29/06/2014

Bibliographical note

© 2014 Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/3.0/).

Keywords

Interconnect
Ceria
High temperature corrosion
Spray pyrolysis

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title = "Ceria based protective coatings for steel interconnects prepared by spray pyrolysis",

abstract = "Stainless steels can be used in solid oxide fuel/electrolysis stacks as interconnects. For successful long term operation they require protective coatings, that lower the corrosion rate and block chemical reactions between the interconnect and adjacent layers of the oxygen or the hydrogen electrode. One of the promising coating materials for the hydrogen side is ceria. Using standard sintering techniques, ceria sinters at around 1400°C which even for a very short exposure would destroy the interconnect. Therefore in this paper a low temperature deposition method, i.e. spray pyrolysis, is used to deposit thin (~400 nm), continuous CeO2 layers on Crofer 22 APU steel substrates. Influence of the deposition parameters on layer quality is elucidated in this work.",

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AU - Szymczewska, Dagmara

AU - Molin, Sebastian

AU - Chen, Ming

AU - Hendriksen, Peter Vang

AU - Jasinski, Piotr

N1 - Conference code: 11

PY - 2014

Y1 - 2014

N2 - Stainless steels can be used in solid oxide fuel/electrolysis stacks as interconnects. For successful long term operation they require protective coatings, that lower the corrosion rate and block chemical reactions between the interconnect and adjacent layers of the oxygen or the hydrogen electrode. One of the promising coating materials for the hydrogen side is ceria. Using standard sintering techniques, ceria sinters at around 1400°C which even for a very short exposure would destroy the interconnect. Therefore in this paper a low temperature deposition method, i.e. spray pyrolysis, is used to deposit thin (~400 nm), continuous CeO2 layers on Crofer 22 APU steel substrates. Influence of the deposition parameters on layer quality is elucidated in this work.

AB - Stainless steels can be used in solid oxide fuel/electrolysis stacks as interconnects. For successful long term operation they require protective coatings, that lower the corrosion rate and block chemical reactions between the interconnect and adjacent layers of the oxygen or the hydrogen electrode. One of the promising coating materials for the hydrogen side is ceria. Using standard sintering techniques, ceria sinters at around 1400°C which even for a very short exposure would destroy the interconnect. Therefore in this paper a low temperature deposition method, i.e. spray pyrolysis, is used to deposit thin (~400 nm), continuous CeO2 layers on Crofer 22 APU steel substrates. Influence of the deposition parameters on layer quality is elucidated in this work.

KW - Interconnect

KW - Ceria

KW - High temperature corrosion

KW - Spray pyrolysis

U2 - 10.1016/j.proeng.2014.12.493

DO - 10.1016/j.proeng.2014.12.493

M3 - Conference article

SN - 1877-7058

VL - 98

SP - 93

EP - 100

JO - Procedia Engineering

JF - Procedia Engineering

T2 - 11th International Symposium on Systems with Fast Ionic Transport

Y2 - 25 June 2014 through 29 June 2014

ER -

Ceria based protective coatings for steel interconnects prepared by spray pyrolysis

Abstract

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Keywords

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