摩擦电效应
材料科学
纳米发生器
聚己内酯
生物相容性材料
复合材料
纳米纤维
能量收集
聚合物
生物医学工程
能量(信号处理)
数学
医学
压电
统计
作者
Dogun Park,Joohyun Hong,Daekyu Choi,Donghyeun Kim,Won Hee Jung,Sam S. Yoon,Ki Hyun Kim,Seongpil An
出处
期刊:Nano Energy
[Elsevier BV]
日期:2022-02-24
卷期号:96: 107091-107091
被引量:40
标识
DOI:10.1016/j.nanoen.2022.107091
摘要
Developing sustainable and environmentally friendly energy harvester is of great interest for various applications, especially for wearable and body-attachable self-powered electronics. Here, a biocompatible, mechanically durable, and sustainable wood-derived triboelectric nanogenerator (wood-TENG) is fabricated and applied as a human kinetic-energy harvester, along with an antifungal activity against athlete's foot. The wood-TENG is composed of the wood-derived natural product, i.e., the root bark of Ulmus davidiana var. japonica and the biocompatible polymer, i.e., polycaprolactone (PCL). The incorporation of U. davidiana var. japonica in nonwoven PCL nanofiber (NF) mat not only enhances the mechanical properties of the wood-TENG, but also increases the surface energy of the NF mat, resulting in the highest energy harvesting efficiency as compared to those of other bio-TENGs. Various physicochemical characterizations, including Fourier transform infrared (FTIR), Kelvin probe force microscopy (KPFM), etc., are conducted to explore the tribopositivity of the NF mat. Thanks to the enhanced triboelectricity, our wood-TENG can generate a maximum output voltage of 80 V and show stable cyclic energy harvesting performance during 100,000 cycles.
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