Employment of fluorine doped zinc tin oxide (ZnSnOx:F) coating layer on stainless steel 316 for a bipolar plate for PEMFC
- Employment of fluorine doped zinc tin oxide (ZnSnOx:F) coating layer on stainless steel 316 for a bipolar plate for PEMFC
- 박지훈; 변동진; 이중기
- Thin Films; Chemical vapor deposition (CVD); Electriochemical techniques; corrosion
- Issue Date
- Materials chemistry and physics
- VOL 128, NO 1-2, 39-43
- 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.
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