High-Performance Triboelectric Nanogenerators Based on Commercial Textiles: Electrospun Nylon 66 Nanofibers on Silk and PVDF on Polyester.
High-Performance Triboelectric Nanogenerators Based on Commercial Textiles: Electrospun Nylon 66 Nanofibers on Silk and PVDF on Polyester.
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DOI：
10.1021/acsami.2c13092
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发表时间：
2022-10-05
影响因子：
9.5
通讯作者：
Mulvihill, Daniel M.
中科院分区：
文献类型：
--
作者：
Bairagi, Satyaranjan;Khandelwal, Gaurav;Karagiorgis, Xenofon;Gokhool, Shravan;Kumar, Charchit;Min, Guanbo;Mulvihill, Daniel M.
关键词：
以常用的商业面料、丝绸和涤纶(PET)为原料，研制了一种高性能纺织摩擦电纳米发电机。采用电纺尼龙66纳米纤维提高真丝的摩擦正性，并涂覆聚偏二氟乙烯(PVDF)涂层以提高PET的摩擦负性。这些改进极大地提高了性能：与Silk/PET基准相比，输出电压和短路电流密度分别提高了17倍(5.85至100V)和16倍(1.6至24.5 mA/m2)。当Ω电阻为4M时，最大功率密度为280mW/m2。性能的提高可能是由于增强了接触层的摩擦正性(和摩擦负性)，以及由于电纺纳米纤维促进了接触面积的增加。表现出极好的稳定性和耐用性：尼龙纳米纤维和PVDF涂层提供高产量，而真丝和涤纶基布提供强度和弹性。电容器快速充电率分别为0.045 V/S(2μF)、0.031 V/S(10μF)和0.011 V/S(22μF)。优势包括高产量，具有极佳柔韧性的完全纺织结构，以及基于经济高效的商业面料建造。该设备是可穿戴电子设备的理想电源，而且这种方法可以很容易地部署到其他纺织品上。
A high-performance textile triboelectric nanogenerator is developed based on the common commercial fabrics silk and polyester (PET). Electrospun nylon 66 nanofibers were used to boost the tribo-positive performance of silk, and a poly(vinylidene difluoride) (PVDF) coating was deployed to increase the tribo-negativity of PET. The modifications confer a very significant boost in performance: output voltage and short-circuit current density increased ∼17 times (5.85 to 100 V) and ∼16 times (1.6 to 24.5 mA/m2), respectively, compared with the Silk/PET baseline. The maximum power density was 280 mW/m2 at a 4 MΩ resistance. The performance boost likely results from enhancing the tribo-positivity (and tribo-negativity) of the contact layers and from increased contact area facilitated by the electrospun nanofibers. Excellent stability and durability were demonstrated: the nylon nanofibers and PVDF coating provide high output, while the silk and PET substrate fabrics confer strength and flexibility. Rapid capacitor charging rates of 0.045 V/s (2 μF), 0.031 V/s (10 μF), and 0.011 V/s (22 μF) were demonstrated. Advantages include high output, a fully textile structure with excellent flexibility, and construction based on cost-effective commercial fabrics. The device is ideal as a power source for wearable electronic devices, and the approach can easily be deployed for other textiles.
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