Characterization of Ti3SiC2-coating on stainless steel bipolar plates in simulated proton exchange membrane fuel cell environments

Ti3SiC2-phase-coating is considered as a candidate for protective coating on bipolar plates in proton exchange membrane fuel cells with good corrosion resistance and electrical conductivity. In this work, Ti–Si–C coatings are prepared on stainless steel substrates by direct current and pulse magnetr...

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Bibliographic Details
Published in:Electrochemistry communications 2019-08, Vol.105, p.106490, Article 106490
Main Authors: Lu, J.L., Abbas, Nadeem, Tang, Jiaoning, Hu, Rentao, Zhu, G.M.
Format: Article
Language:English
Subjects:
Bipolar plate
Corrosion resistance
Electrical conductivity
MAX phase
Ti3SiC2
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Summary:Ti3SiC2-phase-coating is considered as a candidate for protective coating on bipolar plates in proton exchange membrane fuel cells with good corrosion resistance and electrical conductivity. In this work, Ti–Si–C coatings are prepared on stainless steel substrates by direct current and pulse magnetron sputtering, followed by vacuum heat-treatment to generate Ti3SiC2. Our findings indicate that the Ti3SiC2 coatings exhibit an excellent contact resistance and a good anticorrosion performance with low corrosion current densities in simulated proton exchange membrane fuel cells environments. [Display omitted] •Preparation of Ti3SiC2-coatings on SS304 substrates.•The ICR of Ti3SiC2-coated sample is 4.85 mΩ cm2 at 140 N cm−2.•Ti3SiC2-coatings exhibit excellent electrochemical corrosion resistance.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2019.106490