Liquid–solid triboelectrification technology provides a new way to collect hydropower, while the high cost, complexity, and easily damaged microstructures of the triboelectric nanogenerator electrode materials highly limit their practical applications. In this study, a new type of organic coating triboelectric nanogenerator is fabricated using acrylate resin as the friction layer material. To further improve the solid–liquid triboelectrification performance and the hydrophobicity of the coating, fluorine-containing materials were added to the acrylic resin. As a non-microstructure-dependent film, its preparation process is simple and large area prepared, which can be achieved by modifying some commonly used anticorrosion and antifouling coatings in engineering. This packaged organic coating triboelectric nanogenerator provides good stability and high-output performance, which can easily light several commercial light-emitting diodes (LEDs) on a model ship by collecting the wave energy during the voyage. This new type of triboelectric nanogenerator based on the coating material has the advantages of simple process, low cost, and large-area preparation, which combines the performance of the coating itself with the power generation function, and have potential promising practical applications in ocean energy collection and utilization, self-powered sensing, and other fields.
Jin Tan,Yuanyuan Zhao,Xiya Yang,Jialong Duan,Yudi Wang,Qunwei Tang
Film-type electrokinetic generators are a cost-effective and robust strategy for harvesting multi-frequent ocean wave energy. However, the intrinsic property of a low charge density prevents the generator from further improving the energy conversion efficiency. Herein, we present a photo-induced charge-boosting liquid–solid electrokinetic generator (L-SEKG) with a structure of polyurethane/graphene oxide-carbon black-multi-walled carbon nanotube/carbon quantum dots/copper (PU/GO-CB-MWCNT/CQDs/Cu) to harvest ocean wave energy. Systematic studies on the relationship between the output performance and GO dosage, MWCNT dosage, wave frequency, seawater temperature, CQD dosage and illumination intensity respectively were performed to optimize the energy conversion efficiency. Under standard sun illumination (100 mW cm−2, air mass 1.5), a maximum voltage of 0.1 V, a current of 0.39 mA and a power density of 26.6 mW m−2 were achieved by the L-SEKG with a GO/CB ratio of 4 : 3, a MWCNT dosage of 17%, a wave frequency of 0.9 Hz and at a temperature of 25 °C. Further, a stability test of L-SEKG was conducted under continuous waving using real seawater, and a circuit design for scaling up the power output is presented as well. The results demonstrate that the photo-induced L-SEKG has promising applications in large-scale networks to scavenge water wave energy efficiently.
危险品化学品经营许可证（带存储）