High Temperature Oxidation of Ferritic Steels for Solid Oxide Electrolysis Stacks

Sebastian Molin, Ming Chen, Janet Jonna Bentzen, Peter Vang Hendriksen

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

Oxidation rates of ferritic steels used as interconnector plates in Solid Oxide Electrolysis Stacks are of concern as they may be determining for the life time of the technology. In this study oxidation experiments were carried out for up to 1000 hours in hydrogen-side and oxygen-side simulated atmospheres at 800°C. Four commercially available alloys: Crofer 22 APU, Crofer 22 H, AL29-4, E-Brite were characterized in humidified hydrogen. One alloy, Crofer 22 APU was also characterized in pure oxygen both in the as-prepared state and after application of a protective coating. Best corrosion resistance in humidified hydrogen atmosphere was observed for Crofer 22 APU and Crofer 22 H alloys. Corrosion rates for Crofer 22 APU measured in humidified hydrogen are similar to the corrosion rates measured in air. Both coatings of plasma sprayed LSM and dual layer coatings (Co3O4/LSM-Co3O4) applied by wet spraying were found to reduce corrosion rates in pure oxygen significantly.
Original languageEnglish
JournalE C S Transactions
Volume50
Issue number30
Pages (from-to)11-20
ISSN1938-5862
DOIs
Publication statusPublished - 2013
EventPacific Rim Meeting on Electrochemical and Solid-State Science: 222nd Meeting of ECS — The Electrochemical Society and 2012 Fall Meeting of The Electrochemical Society of Japan - Hawaii Convention Center and the Hilton Hawaiian Village, Honolulu, United States
Duration: 7 Oct 201212 Oct 2012
http://www.electrochem.org/meetings/biannual/222/222.htm

Conference

ConferencePacific Rim Meeting on Electrochemical and Solid-State Science
LocationHawaii Convention Center and the Hilton Hawaiian Village
CountryUnited States
CityHonolulu
Period07/10/201212/10/2012
Internet address

Bibliographical note

Presented at ECS PRiME Conference 2012 in Honolulu, HI, USA

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