Ni-YSZ-supported tubular solid oxide fuel cells with GDC interlayer between YSZ electrolyte and LSCF cathode
- Authors
- Park, Seung-Young; Ahn, Jee Hyun; Jeong, Chang-Woo; Na, Chan Woong; Song, Rak-Hyun; Lee, Jong-Heun
- Issue Date
- 13-8월-2014
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Gadolinia doped ceria; GDC interlayer; Carbonate coprecipitation; Tubular solid oxide fuel cell; Yttria stabilized zirconia; La0.6Sr0.4Co0.2Fe0.8O3-delta
- Citation
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.39, no.24, pp.12894 - 12903
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- Volume
- 39
- Number
- 24
- Start Page
- 12894
- End Page
- 12903
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/97687
- DOI
- 10.1016/j.ijhydene.2014.06.103
- ISSN
- 0360-3199
- Abstract
- Highly sinterable gadolinia doped ceria (GDC) powders are prepared by carbonate coprecipitation and applied to the GDC interlayer in Ni-YSZ (yttria stabilized zirconia)-supported tubular solid oxide fuel cell in order to prevent the reaction between YSZ electrolyte and LSCF (La0.6Sr0.4Co0.2Fe0.8O3-delta) cathode materials. The formation of highly resistive phase at the YSZ/LSCF interface was effectively blocked by the low-temperature densification of GDC interlayer using carbonate-derived active GDC powders and the suppression of Sr diffusion toward YSZ electrolyte via GDC interlayer by tuning the heat-treatment temperature for cathode fabrication. The power density of the cell with the configuration of Ni-YSZ/YSZ/GDC/LSCF-GDC/LSCF was as high as 906 mW cm(-2), which was 2.0 times higher than that (455 mW cm(-2)) of the cell with the configuration of Ni-YSZ/ YSZ/LSM(La0.8Sr0.2MnO3-delta)-YSZ/LSM at 750 degrees C. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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