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Enhanced performances of triboelectric nanogenerators by filling hierarchical flower-like TiO2 particles into polymethyl methacrylate film.
Nanoscale ( IF 5.8 ) Pub Date : 2020-06-09 , DOI: 10.1039/d0nr02925d
Gang Jian 1 , Qingzhen Meng , Yong Jiao , Fang Meng , Yanpeng Cao , Mingfang Wu
Affiliation  

In this study, a flower-like TiO2 filled polymethyl methacrylate (PMMA) composite is presented as a positive tribo-material to produce an excellent-performance triboelectric nanogenerator (TENG). By working in conjunction with polydimethylsiloxane (PDMS), the flat-surface PDMS/PMMA-flower TiO2 TENG generates a voltage of 1200 V, a current of 139 mA m−2 and an output power of 34.85 W m−2, showing significant enhancement compared with its counterpart utilizing neat PMMA as the positive tribo-material under the same operating conditions, whose voltage is 620 V, current is 78 mA m−2 and output power is 13.89 W m−2, respectively. The performance of the TENG is highly dependent on filler loadings of TiO2 flower particles in PMMA composites with an optimal filler loading of 40 wt% with the highest performances. The flower TiO2 is vital to the enhanced performances of the TENG, which is due to the modified surface, the tailored dielectric constant and the space charge polarization. The TENG is capable of powering 600 light emitting diodes, a calculator and a digit display, and applied in self-powered electrophoretic deposition of oxide films. This work demonstrates a facile, low-cost approach for obtaining high-performance TENGs utilizing a PMMA-flower TiO2 composite as the positive tribo-material for applications in sustainable power systems.

中文翻译:

通过将分层的花状TiO2颗粒填充到聚甲基丙烯酸甲酯薄膜中,增强了摩擦电纳米发电机的性能。

在这项研究中,以花状TiO 2填充的聚甲基丙烯酸甲酯(PMMA)复合材料为正极摩擦材料,可生产出性能卓越的摩擦电纳米发电机(TENG)。通过与聚二甲基硅氧烷(PDMS)协同工作,平整的PDMS / PMMA花TiO 2 TENG产生1200 V的电压,139 mA m -2的电流和34.85 W m -2的输出功率,显示出与在相同操作条件下使用纯PMMA作为正极摩擦材料的同类产品相比,该产品具有增强功能,在相同的工作条件下,其电压为620 V,电流为78 mA m -2,输出功率为13.89 W m -2, 分别。TENG的性能高度依赖于PMMA复合材料中TiO 2花颗粒的填充量,最佳填充量为40 wt%,具有最高的性能。花TiO 2对于提高TENG的性能至关重要,这归因于改性表面,定制介电常数和空间电荷极化。TENG能够为600个发光二极管,计算器和数字显示器供电,并应用于氧化膜的自供电电泳沉积。这项工作证明了一种简便,低成本的方法,该方法利用PMMA花TiO 2复合材料作为积极的摩擦材料来获得高性能TENG ,以用于可持续电力系统。
更新日期:2020-07-09
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