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

Fingerprint

Fluorine
Stainless Steel
Proton exchange membrane fuel cells (PEMFC)
Contact resistance
Zinc oxide
contact resistance
Tin oxides
zinc oxides
tin oxides
fluorine
stainless steels
corrosion
Stainless steel
Corrosion
coatings
Coatings
corrosion resistance
Surface morphology
Corrosion resistance
radiant flux density

Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Employment of fluorine doped zinc tin oxide (ZnSnOx : F) coating layer on stainless steel 316 for a bipolar plate for PEMFC. / Park, Ji Hun; Byun, Dong Jin; Lee, Joong Kee.

In: Materials Chemistry and Physics, Vol. 128, No. 1-2, 15.07.2011, p. 39-43.

Research output: Contribution to journalArticle

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AB - 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.

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