Triboelectric nanogenerator hybrid array driven by multiform natural energies and its applications in self-powered cathodic protection  

作　　者：SUN Weixiang YANG Di LUO Ning LI Hao WANG DaoAi 

机构地区：[1]School of Materials Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,China [2]State Key Laboratoryof Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China [3]Qingdao Center of Resource Chemistry and New Materials,Qingdao 266100,China

出　　处：《Science China(Technological Sciences)》2024年第3期878-890,共13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 Natural Science Foundation of China(Grant Nos. U21A2046, 52205230, 52205233, 522752195);the Key Research Program of the Chinese Academy of Sciences(Grant No. ZDBS-ZRKJZ-TLC010);the Western Light Project of CAS(Grant No. xbzgzdsys-202118);the Major Science and Technology Projects in Gansu Province(Grant No. 22ZD6GA002);the Major Program of the Lanzhou Institute of Chemical Physics, CAS(Grant No. ZYFZFX-5, HZJJ21-03)。

摘　　要：In view of the increasing energy shortage and environmental pollution, the collection of friction charges to achieve the conversion of various natural energies and provide in-situ cathodic protection for metals is a significant challenge. Here, we designed a dual device-structure TENG composite array with the triboelectric layer of linear siloxane-modified polyurethane(PU) coating. This array could achieve a comprehensive collection for multiple forms of nature energy and cathodic protection of metals in multi-weather conditions. For one thing, the wave-mode TENG based on tanker structure could collect wave energy and showed the output performance with a short-circuit current of 15.5 μA. For another thing, the droplet-mode TENG based on arc-shaped surface structure could collect raindrop kinetic energy and showed the output performance with a short-circuit current of 16.3 μA. Notably, the parallel array of wave-mode TENG(W-TENG) and droplet-mode TENG(D-TENG) could simultaneously collect wave energy and raindrop kinetic energy, which showed a short-circuit current of 30.7 μA. Besides, a selfpowered a cathodic protection system powered by the dual structure TENG array is assembled and the open-circuit potential drop of the carbon steel connected with the TENG array is about 450 mV. Compared with cathodic protection system powered by single structure TENG, the composite array could provide more effective corrosion resistance for marine equipment in rainy weather. Due to the characteristic for comprehensive collection of nature energy, the anti-corrosion system supplied by TENG parallel array possesses great application potential in the all-weather corrosion protection of metal machinery under complex marine conditions.

关 键 词：triboelectric nanogenerator hybrid structure array siloxane-modified polyurethane cathodic protection 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TB383.1[金属学及工艺—金属学]