Employment of fluorine doped zinc tin oxide (ZnSnOx:F) coating layer on stainless steel 316 for a bipolar plate for PEMFC

Title
Employment of fluorine doped zinc tin oxide (ZnSnOx:F) coating layer on stainless steel 316 for a bipolar plate for PEMFC
Authors
박지훈변동진이중기
Keywords
Thin Films; Chemical vapor deposition (CVD); Electriochemical techniques; corrosion
Issue Date
2011-07
Publisher
Materials chemistry and physics
Citation
VOL 128, NO 1-2, 39-43
Abstract
The investigation of the electrochemical characteristics of the fluorine doped tin oxide (SnOx:F) and fluorine doped zinc tin oxide (ZnSnOx:F) was carried out in the simulated PEMFC environment and bare stainless steel 316 was used as a reference. The results showed that the ZnSnOx:F coating enhanced both the corrosion resistance and interfacial contact resistance (ICR). The corrosion current for ZnSnOx:F was 1.2 μAcm−2 which was much lower than that of bare stainless steel of 50.16 μAcm−2. The ZnSnOx:F coated film had the smallest corrosion current due to the formation of a tight surface morphology with very few pin-holes. The ZnSnOx:F coated film exhibited the highest values of the cell voltage and power density due to its having the lowest ICR values.
URI
http://pubs.kist.re.kr/handle/201004/39724
ISSN
0254-0584
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KIST Publication > Article
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