Superior La-1 (-) xSrxCoO3 (-) (delta) ceramic electrode fabrication by MOCSD for low-temperature SOFC application
- Title
- Superior La-1 (-) xSrxCoO3 (-) (delta) ceramic electrode fabrication by MOCSD for low-temperature SOFC application
- Author
- 김영범
- Keywords
- Chemical solution deposition; Lanthanum strontium cobaltite; Low-temperature solid oxide fuel cell; Non-precious ceramic electrode
- Issue Date
- 2017-02
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- SURFACE & COATINGS TECHNOLOGY, v. 311, page. 157-163
- Abstract
- Metalorganic chemicalsolutiondeposited lanthanum strontium cobaltite (LSC, La-1-xSrxCoO3-delta) nanoporous thin films were fabricated for use as cathodes for lowtemperature solid oxide fuel cells (LT-SOFCs). Electrochemical performance and durability were evaluated under continuous operation by comparing with typical Pt cathode SOFCs. In the initial stage of operation, SOFCs with Pt cathodes showed higher output power density for its superior catalytic activity. However, the overall performance of SOFCs with Pt cathodes gradually degraded due to thermal instability, while the performance with LSC cathodes remained stable for 10 h of continuous operation. In addition, by taking advantage of wet chemical solution methods, the amount of dopant was systematically varied to investigate its effect on fuel cell performance (La-1-xSrxCoO3-delta, x = 0.4, 0.5, 0.6). The fuel cell sample with the dopant ratio x = 0.5 showed the highest peak power density independent of the operating temperature. This result implies that LSC cathodes deposited by chemical solution deposition show better operational durability than Pt cathodes and provided potentiality of replacing precious metal cathode for low temperature SOFCs. (C) 2016 Elsevier B.V. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/abs/pii/S0257897216313809?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/112738
- ISSN
- 0257-8972
- DOI
- 10.1016/j.surfcoat.2016.12.091
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
- Files in This Item:
There are no files associated with this item.
- Export
- RIS (EndNote)
- XLS (Excel)
- XML