CORROSION PROTECTION OF AMORPHOUS CARBON COATING FOR THE BIPOLAR PLATES OF PEMFCs

Gang Chen, Tao Tao, Ping-Ping Gao, Zhi-Yong Xie and Xiao-Bo Wu
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Gang Chen: School of Materials Science and Engineering, Hunan University, Changsha 410082, P. R. China
Tao Tao: School of Materials Science and Engineering, Hunan University, Changsha 410082, P. R. China
Ping-Ping Gao: #x2020;Hunan Zdwlink Technology Co. LTD, Hunan University, Changsha 410000, P. R. China
Zhi-Yong Xie: #x2021;Powder Metallurgy Research Institute, Central South University, Changsha 410083, P. R. China
Xiao-Bo Wu: #x2020;Hunan Zdwlink Technology Co. LTD, Hunan University, Changsha 410000, P. R. China

Surface Review and Letters (SRL), 2019, vol. 26, issue 09, 1-6

Abstract: A carbon precursor film was formed on a titanium plate by a hydrothermal method using glucose, and an amorphous film was obtained by carbonization at 400∘C under an Ar atmosphere. The morphology and composition of the surface was analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometer (EDS), and the interface contact resistance (ICR) under different pressures by simulating the working mode of the fuel cell. The corrosion resistance of amorphous carbon coatings was tested by simulating the proton exchange membrane fuel cells (PEMC). The amorphous coating showed excellent interfacial conductivity and great corrosion resistance, with high potential application in bipolar plates of PEMFCs

Keywords: Ti-based bipolar plate; hydrothermal; amorphous carbon; corrosion resistance; resistivity; proton exchange membrane fuel cell (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1142/S0218625X19500598

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