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

Ji Hun Park, Dong Jin Byun, Joong Kee Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

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 μA cm-2 which was much lower than that of bare stainless steel of 50.16 μA cm-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.

Original languageEnglish
Pages (from-to)39-43
Number of pages5
JournalMaterials Chemistry and Physics
Volume128
Issue number1-2
DOIs
Publication statusPublished - 2011 Jul 15

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Keywords

  • Chemical vapor deposition (CVD)
  • Corrosion
  • Electrochemical techniques
  • Thin films

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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