Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Boron deposition and poisoning of La0.8Sr0.2MnO3 oxygen electrodes of solid oxide electrolysis cells under accelerated operation conditions

    Access Status
    Fulltext not available
    Authors
    Chen, K.
    Hyodo, J.
    Ai, N.
    Ishihara, T.
    Jiang, San Ping
    Date
    2015
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Chen, K. and Hyodo, J. and Ai, N. and Ishihara, T. and Jiang, S.P. 2015. Boron deposition and poisoning of La0.8Sr0.2MnO3 oxygen electrodes of solid oxide electrolysis cells under accelerated operation conditions. International Journal of Hydrogen Energy. 41 (3): pp. 1419-1431.
    Source Title
    International Journal of Hydrogen Energy
    DOI
    10.1016/j.ijhydene.2015.11.013
    ISSN
    0360-3199
    School
    Fuels and Energy Technology Institute
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP150102025
    URI
    http://hdl.handle.net/20.500.11937/42081
    Collection
    • Curtin Research Publications
    Abstract

    © 2015 Hydrogen Energy Publications, LLC. The effect of boron species from borosilicate glass sealant on the electrocatalytic activity and microstructure of La0.8Sr0.2MnO3 (LSM) oxygen electrodes is studied for the first time under accelerated solid oxide electrolysis cell (SOEC) operation conditions at 800 °C. The presence of volatile boron species has remarkable detrimental effect on the electrochemical activity of LSM oxygen electrode for the O2 evolution reaction (OER). After polarization at 200 mA cm-2 for 2 h, the electrode polarization and ohmic resistances increase rapidly from ~40 and 1.2 O cm2 to 614 and 33 O cm2, respectively. Under the anodic polarization conditions, there is an accelerated Sr segregation and boron deposition preferentially occurs at the electrode/electrolyte interface, forming lanthanum borates and manganese oxide. Boron deposition and reaction is driven to the interface region due to the increased activity and energetics of lanthanum at LSM lattice sites at the electrode/electrolyte interface under anodic polarization conditions, accelerating the disintegration and delamination of the LSM electrode. The results indicate the potential detrimental effect of volatile boron on the electrochemical activity and stability of LSM oxygen electrodes of solid oxide electrolyzers.

    Related items

    Showing items related by title, author, creator and subject.

    • A Fundamental Study of Boron Deposition and Poisoning of La0.8Sr0.2MnO3 Cathode of Solid Oxide Fuel Cells under Accelerated Conditions
      Chen, K.; Liu, S.; Guagliardo, P.; Kilburn, M.; Koyama, M.; Jiang, San Ping (2015)
      Borosilicate glass and glass-ceramics are the most common sealant materials for planar solid oxide fuel cells (SOFCs). This study focuses on the fundamentals of deposition and poisoning of volatile boron species from the ...
    • New zinc and bismuth doped glass sealants with substantially suppressed boron deposition andpoisoning for solid oxide fuel cells
      Chen, Kongfa; Fang, L.; Zhang, T.; Jiang, San Ping (2014)
      Borosilicate-based glasses are the most common sealant materials for solid oxide fuel cells (SOFCs). However, boron species vaporizing from glass sealants poison and degrade the electrocatalytic activity of cathodes of ...
    • Active, durable bismuth oxide-manganite composite oxygen electrodes: Interface formation induced by cathodic polarization
      Chen, M.; Cheng, Y.; He, S.; Ai, N.; Veder, Jean-Pierre; Rickard, William; Saunders, M.; Chen, K.; Zhang, T.; Jiang, San Ping (2018)
      Bismuth oxide is as an active promoter in enhancing the ionic conductivity and electrocatalytic activity of manganite oxygen electrodes of solid oxide cells, but there are very limited reports on the formation and evolution ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.