Hydrophobic organic coating based water--solid TENG for water-flow energy collection and self-powered cathodic protection |
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| Authors: | Yupeng LIU Guoyun SUN Ying LIU Weixiang SUN Daoai WANG |
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| Affiliation: | 1. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China2. Institute of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China3. Qingdao Center of Resource Chemistry and New Materials, Qingdao 266100, China4. School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266100, China |
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| Abstract: | Water–solid triboelectric nanogenerators (TENGs), as new energy collection devices, have attracted increasing attention in ocean energy harvesting and self-powered sensing. Polyacrylic acid (PAA) coating, usually used on the surface of marine equipment, has the property of anti-aging and anti-wear but limits triboelectrical output when used with TENGs. In this paper, polyacrylic acid coating was modified with fluorinated polyacrylate resin (F-PAA) to increase its triboelectrical output, by 6 times, and also to increase its anti-corrosion property. In addition, the corrosion resistance property can be further enhanced by cathodic protection using the electrical output generated by the water-flow triboelectrical energy transfer process. Given their easy fabrication, water-flow energy harvesting, and corrosion resistance, PAA/F-PAA coating-based TENGs have promising applications in river and ocean energy collection and corrosion protection. |
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| Keywords: | TENG hydrophobic coating energy collection anticorrosion cathodic protection |
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