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Long-term stability of solid oxide cell air electrodes influenced by gaseous contaminants.

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Title: Long-term stability of solid oxide cell air electrodes influenced by gaseous contaminants.
Authors: Egger, Andreas1 (AUTHOR), Sitte, Werner1 (AUTHOR) werner.sitte@unileoben.ac.at
Source: Solid State Ionics. May2026, Vol. 439, pN.PAG-N.PAG. 1p.
Subjects: Electrodes, Solid oxide fuel cells, Oxygen electrodes, Selective inhibition (Chemistry), Pollutants, Durability
Abstract: Solid oxide cells, i.e. solid oxide fuel cells (SOFCs) and solid oxide electrolyzer cells (SOECs), are efficient energy converters for a future energy system. Poisoning of air electrodes of solid oxide cells by gaseous contaminants is a serious issue limiting the long-term stability of their electrochemical performance, and is thus a challenge for successful commercialization. This review provides an overview of poisoning of perovskite and Ruddlesden-Popper-type air electrodes by gaseous Cr- and Si-species as well as SO 2 , including recent results. It discusses fundamental aspects of Sr-segregation and reactions with gaseous contaminants, emphasizing the importance of size mismatch and basicity of the constituents of the ceramic oxide electrode. Studies on Cr-, Si- and SO 2 -poisoning of air electrodes are presented together with mitigation and recovery measures. • Sr-segregation and reaction with gaseous contaminants. • Poisoning of air electrodes of solid oxide cells by Cr- and Si-containing species as well as SO 2. • Mitigation of air electrode poisoning and recovery measures. [ABSTRACT FROM AUTHOR]
Copyright of Solid State Ionics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 192509413
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Long-term stability of solid oxide cell air electrodes influenced by gaseous contaminants.
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  Data: <searchLink fieldCode="AR" term="%22Egger%2C+Andreas%22">Egger, Andreas</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sitte%2C+Werner%22">Sitte, Werner</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> werner.sitte@unileoben.ac.at</i>
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  Data: <searchLink fieldCode="JN" term="%22Solid+State+Ionics%22">Solid State Ionics</searchLink>. May2026, Vol. 439, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Electrodes%22">Electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Solid+oxide+fuel+cells%22">Solid oxide fuel cells</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+electrodes%22">Oxygen electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Selective+inhibition+%28Chemistry%29%22">Selective inhibition (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Pollutants%22">Pollutants</searchLink><br /><searchLink fieldCode="DE" term="%22Durability%22">Durability</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Solid oxide cells, i.e. solid oxide fuel cells (SOFCs) and solid oxide electrolyzer cells (SOECs), are efficient energy converters for a future energy system. Poisoning of air electrodes of solid oxide cells by gaseous contaminants is a serious issue limiting the long-term stability of their electrochemical performance, and is thus a challenge for successful commercialization. This review provides an overview of poisoning of perovskite and Ruddlesden-Popper-type air electrodes by gaseous Cr- and Si-species as well as SO 2 , including recent results. It discusses fundamental aspects of Sr-segregation and reactions with gaseous contaminants, emphasizing the importance of size mismatch and basicity of the constituents of the ceramic oxide electrode. Studies on Cr-, Si- and SO 2 -poisoning of air electrodes are presented together with mitigation and recovery measures. • Sr-segregation and reaction with gaseous contaminants. • Poisoning of air electrodes of solid oxide cells by Cr- and Si-containing species as well as SO 2. • Mitigation of air electrode poisoning and recovery measures. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Solid State Ionics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.ssi.2026.117177
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      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Electrodes
        Type: general
      – SubjectFull: Solid oxide fuel cells
        Type: general
      – SubjectFull: Oxygen electrodes
        Type: general
      – SubjectFull: Selective inhibition (Chemistry)
        Type: general
      – SubjectFull: Pollutants
        Type: general
      – SubjectFull: Durability
        Type: general
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      – TitleFull: Long-term stability of solid oxide cell air electrodes influenced by gaseous contaminants.
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            – D: 01
              M: 05
              Text: May2026
              Type: published
              Y: 2026
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              Value: 439
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