A robust symmetrical electrode with layered perovskite structure for direct hydrocarbon solid oxide fuel cells: PrBa0.8Ca0.2Mn2O5+delta
- Authors
- Choi, S.; Sengodan, S.; Park, S.; Ju, Y-W.; Kim, J.; Hyodo, J.; Jeong, H. Y.; Ishihara, T.; Shin, J.; Kim, G.
- Issue Date
- Jan-2016
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY A, v.4, no.5, pp 1747 - 1753
- Pages
- 7
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY A
- Volume
- 4
- Number
- 5
- Start Page
- 1747
- End Page
- 1753
- URI
- https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/3578
- DOI
- 10.1039/c5ta08878j
- ISSN
- 2050-7488
2050-7496
- Abstract
- Symmetrical solid oxide fuel cells (SOFCs), where the same material is used as both the anode and the cathode, have gained increasing attention due to a number of attractive benefits compared to the conventional SOFC such as a simplified fabrication procedure, reduced processing costs, minimized compatibility issues, as well as enhanced stability and reliability. Since the anode is in a reducing environment while the cathode is in an oxidizing environment, the symmetrical SOFC electrode should be chemically and structurally stable in both environments. Herein, we propose a highly stable symmetrical SOFC electrode, a layered perovskite Ca doped PrBaMn2O5+δ (PBCMO). The electrical conductivity of this electrode is very high in a reducing atmosphere and suitable in an oxidizing atmosphere. Furthermore, the PBCMO symmetrical electrode demonstrates excellent electrochemical performance and durability in various hydrocarbon fuels as well as hydrogen.
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