Electrochemical properties of TiN coatings on 316L stainless steel separator for polymer electrolyte membrane fuel cell

W. S. Jeon; J. G. Kim; Y. J. Kim; J. G. Han

doi:10.1016/j.tsf.2007.08.086

Electrochemical properties of TiN coatings on 316L stainless steel separator for polymer electrolyte membrane fuel cell

W. S. Jeon
, J. G. Kim
, Y. J. Kim
, J. G. Han

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

TiN films for metallic bipolar plates were synthesized by closed-field unbalanced magnetron sputtering (CFUBM) and the properties were controlled by adjusting the N₂ partial pressure. The corrosion behaviors of TiN films were investigated by potentiodynamic tests and electrochemical impedance spectroscopy (EIS) measurements under the condition of an aerated 1 M H₂SO₄ + 2 ppm HF solution at 70 °C with a constant potential of 600 mV_SCE. The results revealed that the variation of N₂ pressure had an influence on the corrosion resistance of TiN coating. N₂ partial pressure of 0.4 mTorr showed good corrosion resistance with the lowest corrosion current density and the highest charge transfer resistance due to the low porosity.

Original language	English
Pages (from-to)	3669-3672
Number of pages	4
Journal	Thin Solid Films
Volume	516
Issue number	11
DOIs	https://doi.org/10.1016/j.tsf.2007.08.086
State	Published - 1 Apr 2008

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Electrochemical impedance spectroscopy
PEMFC
Potentiodynamic test
TiN

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10.1016/j.tsf.2007.08.086

Cite this

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title = "Electrochemical properties of TiN coatings on 316L stainless steel separator for polymer electrolyte membrane fuel cell",

abstract = "TiN films for metallic bipolar plates were synthesized by closed-field unbalanced magnetron sputtering (CFUBM) and the properties were controlled by adjusting the N2 partial pressure. The corrosion behaviors of TiN films were investigated by potentiodynamic tests and electrochemical impedance spectroscopy (EIS) measurements under the condition of an aerated 1 M H2SO4 + 2 ppm HF solution at 70 °C with a constant potential of 600 mVSCE. The results revealed that the variation of N2 pressure had an influence on the corrosion resistance of TiN coating. N2 partial pressure of 0.4 mTorr showed good corrosion resistance with the lowest corrosion current density and the highest charge transfer resistance due to the low porosity.",

keywords = "Electrochemical impedance spectroscopy, PEMFC, Potentiodynamic test, TiN",

author = "Jeon, \{W. S.\} and Kim, \{J. G.\} and Kim, \{Y. J.\} and Han, \{J. G.\}",

year = "2008",

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doi = "10.1016/j.tsf.2007.08.086",

language = "English",

volume = "516",

pages = "3669--3672",

journal = "Thin Solid Films",

issn = "0040-6090",

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number = "11",

}

TY - JOUR

T1 - Electrochemical properties of TiN coatings on 316L stainless steel separator for polymer electrolyte membrane fuel cell

AU - Jeon, W. S.

AU - Kim, J. G.

AU - Kim, Y. J.

AU - Han, J. G.

PY - 2008/4/1

Y1 - 2008/4/1

N2 - TiN films for metallic bipolar plates were synthesized by closed-field unbalanced magnetron sputtering (CFUBM) and the properties were controlled by adjusting the N2 partial pressure. The corrosion behaviors of TiN films were investigated by potentiodynamic tests and electrochemical impedance spectroscopy (EIS) measurements under the condition of an aerated 1 M H2SO4 + 2 ppm HF solution at 70 °C with a constant potential of 600 mVSCE. The results revealed that the variation of N2 pressure had an influence on the corrosion resistance of TiN coating. N2 partial pressure of 0.4 mTorr showed good corrosion resistance with the lowest corrosion current density and the highest charge transfer resistance due to the low porosity.

AB - TiN films for metallic bipolar plates were synthesized by closed-field unbalanced magnetron sputtering (CFUBM) and the properties were controlled by adjusting the N2 partial pressure. The corrosion behaviors of TiN films were investigated by potentiodynamic tests and electrochemical impedance spectroscopy (EIS) measurements under the condition of an aerated 1 M H2SO4 + 2 ppm HF solution at 70 °C with a constant potential of 600 mVSCE. The results revealed that the variation of N2 pressure had an influence on the corrosion resistance of TiN coating. N2 partial pressure of 0.4 mTorr showed good corrosion resistance with the lowest corrosion current density and the highest charge transfer resistance due to the low porosity.

KW - Electrochemical impedance spectroscopy

KW - PEMFC

KW - Potentiodynamic test

KW - TiN

UR - https://www.scopus.com/pages/publications/40649099849

U2 - 10.1016/j.tsf.2007.08.086

DO - 10.1016/j.tsf.2007.08.086

M3 - Article

AN - SCOPUS:40649099849

SN - 0040-6090

VL - 516

SP - 3669

EP - 3672

JO - Thin Solid Films

JF - Thin Solid Films

IS - 11

ER -

Electrochemical properties of TiN coatings on 316L stainless steel separator for polymer electrolyte membrane fuel cell

Abstract

UN SDGs

Keywords

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