2024-10-29 ロイヤルメルボルン工科大学(RMIT)
＜関連情報＞
- https://www.rmit.edu.au/news/all-news/2024/oct/static-power
- https://onlinelibrary.wiley.com/doi/full/10.1002/aesr.202300259
ポリスチレン廃棄物のリサイクルからトライボエレクトリック・ナノジェネレーターへ： 同材質接触電化による体積電気機械応答性積層体 Recycled Polystyrene Waste to Triboelectric Nanogenerators: Volumetric Electromechanically Responsive Laminates from Same-Material Contact Electrification
Andris Šutka, Anna Šutka, Henriks Dundurs, Blanca del Rosal, Mairis Iesalnieks, Kaspars Mālnieks, Artis Linarts, Anders J. Barlow, Ronald T. Leon, Amanda V. Ellis, Peter C. Sherrell
Advanced Energy and Sustainability Research Published: 14 February 2024
DOI:https://doi.org/10.1002/aesr.202300259
Abstract
Millions of tonnes of polystyrene (PS) are produced annually, with only an estimated 12% being recycled. Herein, the upcycling of expanded or foamed PS waste into electromechanically responsive triboelectric laminates (TLs) is described. These TLs possess internal triboelectric dipoles offering an alternative to ferroelectric fluoropolymers, and, when manufactured into triboelectric nanogenerators (TENGs), are able to generate over 200 V and 12 μA from motion. This energy harvesting is enabled by electrospinning alternating layers of small and large diameter PS fibers, which upon friction establish an effective dipole moment within the TL. The PS-TENG shows remarkable stability and is able to charge a 0.47 μF capacitor to 15 V in 200 s of vibration from same material contact electrification, with piezoelectric contact-mode testing showing that a single PS laminate is comparable to state-of-the-art piezoelectric fluoropolymers for overall electromechanical conversion.
