Thermally stable current-collecting silver grid coated with ceramic-capping layer for low-temperature solid oxide fuel cells
- Authors
- Hong, Soonwook; Lim, Yonghyun; Prinz, Fritz B.; Kim, Young-Beom
- Issue Date
- Dec-2018
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Thermal barrier coating; Samaria-doped ceria (SDC); Oxide-capping layer; Silver current collector; Low-temperature solid oxide fuel cells
- Citation
- CERAMICS INTERNATIONAL, v.44, no.18, pp.22212 - 22218
- Indexed
- SCIE
SCOPUS
- Journal Title
- CERAMICS INTERNATIONAL
- Volume
- 44
- Number
- 18
- Start Page
- 22212
- End Page
- 22218
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/15265
- DOI
- 10.1016/j.ceramint.2018.08.340
- ISSN
- 0272-8842
- Abstract
- In an effort to decrease the operating temperature of solid oxide fuel cells (SOFCs), nano-porous thin Pt layers have been used as a cathode material with catalytic activity. Because of porous and thin characteristic of the Pt cathode, however, a large cathode area results in a significant performance deterioration because of the increased sheet resistance of the Pt cathode. In this study, we developed a Ag-patterned grid as a current-collecting layer and a samaria-doped ceria (SDC) oxide-capping layer on the porous Pt cathode to decrease sheet resistance and enhance electrochemical performance. Enhanced electron transportation and thermo-stable behavior of fabricated fuel cells indicated three-fold enhanced peak power density and more than two-fold thermomechanical stability, as per scanning electron microscopy (SEM) and electrochemical analysis results.
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