Influence of a platinum functional layer on a Ni-Ce0.9Gd0.1O1.95 anode for thin-film solid oxide fuel cells
- Authors
- Kang, Sungmin; Chang, Ikwhang; Kim, Young-Beom; Cha, Suk Won
- Issue Date
- Sep-2015
- Publisher
- A V S AMER INST PHYSICS
- Citation
- JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, v.33, no.5, pp.1 - 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
- Volume
- 33
- Number
- 5
- Start Page
- 1
- End Page
- 6
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/156450
- DOI
- 10.1116/1.4927160
- ISSN
- 0734-2101
- Abstract
- A Pt functional layer was deposited between a Ni-Ce0.9Gd0.1O1.95 (50 wt. % Ni) anode and an 8 mol. % yttria-stabilized zirconia electrolyte in order to enhance the performance of a thin film solid oxide fuel cell. By inserting this ultrathin functional layer, the ohmic impedance of the single cell was significantly reduced, and the maximum power density was increased by a factor of similar to 1.55. However, excessive deposition of the Pt functional layer caused ionic conduction pathway blocking between the yttria-stabilized zirconia and Ni-Gd0.1Ce0.9O1.95 (Ni-GDC), deactivating the Ni-GDC as a mixed ionic and electronic conducting anode. As a result, both the ohmic impedance and anodic faradaic impedance were increased after introduction of excessive Pt functional layer, and the maximum power density was also reduced.
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