Research output: Contribution to journal › Article › peer-review
Ni/YSZ cathodes are generally utilised for steam electrolysis; however such electrodes can only operate under reducing conditions. In an atmosphere with low content of H-2 or without H2, especially under low current conditions, cathodes based on (La0.75Sr0.25)(0.95)Mn0.5Cr0.5O3 (LSCM) provide a promising alternative. Solid Oxide Electrolysis Cells with LSCM cathodes were tested under external potential load at temperatures between 750 degrees C and 1000 degrees C using 3% steam/Ar/4% H-2 and 3% steam/Ar, and promising polarisation impedance data were obtained in both atmospheres, especially in the gas without H-2. I-V curves from LSCM cells in 3% steam/Ar have sigmoidal shape indicative of chemical changes in the LSCM occurring in addition to electrolysis. Despite these features, considerably improved performance is found compared to Ni-based electrodes in low hydrogen conditions.
Original language | English |
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Pages (from-to) | 2349-2354 |
Number of pages | 6 |
Journal | Journal of Materials Chemistry |
Volume | 18 |
DOIs | |
Publication status | Published - 28 May 2008 |
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Research output: Contribution to journal › Review article › peer-review
Research output: Contribution to journal › Review article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Research output: Contribution to journal › Article › peer-review
Finlay Morrison (Reviewer)
Activity: Publication peer-review and editorial work types › Peer review of manuscripts
John Thomas Sirr Irvine (Member of editorial board)
Activity: Publication peer-review and editorial work types › Editor of research journal
ID: 409731