Electrodeposition of Ni-W/CNT Composite Plating and Its Potential as Coating for PEMFC Bipolar Plate
| Autor: | Tatsuya Wada, Yuto Naruse, Ichino Ryoichi, Jae-Hyeok Park, Takeshi Hagio, Yuki Kamimoto |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Ni-W plating Composite number Contact resistance Proton exchange membrane fuel cell carbon nano tube (CNT) Surfaces and Interfaces Carbon nanotube engineering.material composite plating Surfaces Coatings and Films Corrosion law.invention polymer electrolyte membrane fuel cell (PEMFC) Coating law Plating Materials Chemistry engineering Surface modification Composite material bipolar plate |
| Zdroj: | Coatings Volume 10 Issue 11 |
| ISSN: | 2079-6412 |
| DOI: | 10.3390/coatings10111095 |
| Popis: | In this study, Ni-W/carbon nanotube (CNT) composite platings are electrodeposited onto steel plate as a possible coating material for the polymer electrolyte membrane fuel cell (PEMFC) bipolar plate, which requires high corrosion resistance under acidic environment and low contact resistance. The dispersibility of CNT in the plating bath is improved by surface modification of CNT through hydrothermal treatment in mixed acid solution. The change in electrodeposition behavior of Ni-W plating by CNT addition is investigated by cathodic polarization measurement. The corrosion resistance under acidic environment is evaluated using 0.5M H2SO4 solution and contact resistance of the composite platings is measured and compared with Ni and Ni-W plating. The surface modification of CNT through hydrothermal treatment is found to increase the CNT content in the Ni-W/CNT composite plating up to 0.33 mass.% and sufficient incorporation of hydrothermally treated CNT in Ni-W plating results in low contact resistance and enhanced corrosion resistance than pristine Ni-W plating. |
| Databáze: | OpenAIRE |
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