A novel solid oxide electrolysis cell (SOEC) to separate anodic from cathodic polarization under high electrolysis current
SCIE
SCOPUS
- Title
- A novel solid oxide electrolysis cell (SOEC) to separate anodic from cathodic polarization under high electrolysis current
- Authors
- Kim, SJ; Kim, KJ; Choi, GM
- Date Issued
- 2015-08-10
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- A novel thick-film electrolyte-supported cell is constructed to separate cathodic (fuel electrode) from anodic (air electrode) polarization resistance R-p under high electrolysis current in a solid oxide electrolysis cell (SOEC). R-p of the SOEC are measured in various fuel humilities (40, 60, 80% H2O + balance H-2) at temperature of 650-800 degrees C and also compared those of a solid oxide fuel cell (SOFC). Anodic R-p of La0.6Sr0.4Co0.2Fe0.8O3-delta (LSCF) is similar to 3 times larger than cathodic Rp of Ni-YSZ (yttria-stabilized zirconia) composite at all temperatures tested, so anodic polarization is the limiting factor of electrolysis performance. Degradation of polarization resistance also occurs mostly at the anode under electrolysis current (-800 mA/cm(2)). Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35468
- DOI
- 10.1016/J.IJHYDENE.2015.05.143
- ISSN
- 0360-3199
- Article Type
- Article
- Citation
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol. 40, no. 30, page. 9032 - 9038, 2015-08-10
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