Hydrophobic MAO/FSG coating based TENG for self-healable energy harvesting and self-powered cathodic protection  

作　　者：LIU YuPeng SUN WeiXiang LI TingHua WANG DaoAi 

机构地区：[1]State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [2]Qingdao Center of Resource Chemistry and New Materials,Qingdao 266100,China [3]Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China [4]Technical Center of China Tobacco Yunnan Industrial Co.,Ltd.,Kunming 650231,China

出　　处：《Science China(Technological Sciences)》2022年第3期726-734,共9页中国科学（技术科学英文版）

基　　金：supported by the Program for Taishan Scholars of Shandong Province(Grant No.ts20190965);the National Key Research and Development Program of China(Grant No.2020YFF0304600);the Key Research Program of the Chinese Academy of Sciences(Grant No.XDPB24);the National Natural Science Foundation of China(Grant No.51905518);the Innovation Leading Talents Program of Qingdao(Grant No.19-3-2-23-zhc)in China。

摘　　要：An organic/inorganic hybrid coating with self-healable hydrophobicity is prepared as triboelectrical layer by micro-arc oxidation(MAO)and fluorinated sol-gel(FSG)coating.The MAO/FSG hybrid coating-based TENG(MF-TENG)has a current output of31μA and voltage output of 870 V,which is eight times that of the MAO based TENG.Compared with organic coating,the organic/inorganic hybrid coating has good wear resistance.When the fluorine composition on the surface of the coating is damaged,the self-healing hydrophobicity and electrical output are achieved by transferring loaded perfluorosilane to the damaged surface.The fluorinated sol-gel coating is hydrophobic,which ensures that the coating has good corrosion resistance.Also,the electricity generated in triboelectrification could improve the anti-corrosion performance by cathodic protection.Based on the anti-corrosion,anti-wear and self-healing properties,the MF-TENG has potential applicability in the field of energy collection,energy supply,and corrosion protection.

关 键 词：triboelectric nanogenerator organic/inorganic hybrid coating energy collection corrosion resistance self-healing property 

分 类 号：TG174.4[金属学及工艺—金属表面处理]