Preparation of Cr-based multilayer coating on stainless steel as bipolar plate for PEMFCs by magnetron sputtering |
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| Authors: | Dongming Zhang Lu GuoLiangtao Duan Wei-Hsing Tuan |
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| Affiliation: | a State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, PR China
b Department of Materials Science and Engineering, National Taiwan University, Taibei, Taiwan |
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| Abstract: | In the present study, a multilayer composing of Cr3Ni2/Cr2N/CrN is sputtered onto stainless steel. The potential of using the coated stainless steel as the bipolar plate for polymer electrolyte membrane fuel cell (PEMFC) is evaluated. The coated stainless steel exhibits improved corrosion resistance and higher electrical conductivity. The coated surface also demonstrates a hydrophobic characteristic. By using single cell test, the multilayer-coated SS304 plate exhibits an improved performance in terms of I-V properties. |
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| Keywords: | Cr-based multilayer coating Bipolar plate Polymer electrolyte membrane fuel cell Microstructure Corrosion Magnetron sputtering |
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