A roller-type triboelectric nanogenerator based on rotational friction between wool and stacked interfaces for omnidirectional wind energy harvesting†

IF 5.8 3区 材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Nanoscale Pub Date : 2024-12-09 DOI:10.1039/D4NR04358H
Xiaonan Su, Yuxiang Su, Hongjun Yan, Xinyao Zhang, Guanyu Dai, Xin Dong, Jinlin Wu, Xizeng Zhao, Keyang Zhao and Zhenhua Li
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Abstract

It is urgently desired to develop high-performance wind energy collectors to power numerous microelectronic devices along with the Internet of Things (IoT). A roller-type triboelectric nanogenerator (R-TENG) based on rotational friction between wool and stacked interfaces is proposed and efficiently used for harvesting wind energy. Wool, an electropositive and flexible material, is utilized in the design, effectively reducing abrasion on the contact surface and adjusting the output in response to varying compression levels. The conductive layer greatly enhances the output performance, which produces more induced charge by stacking different triboelectric materials in a particular order. By adding bottom power generation units, the internal space of the unit can be fully utilized to improve its energy conversion efficiency. At 900 rpm of the motor, the instantaneous open-circuit voltage (VOC), short-circuit current (ISC), and transferred charge (QSC) of the R-TENG can reach 1504 V, 67.24 μA and 157.4 nC, respectively. After connection to a load via a rectifier bridge, the R-TENG has a maximum power output of 14.58 mW and an instantaneous power density of 11.7 W m−3. In laboratory wind energy harvesting experiments, the design can easily drive at least 720 LEDs and charge a 2000 μF capacitor up to about 1.5 V in 78 s. In practice, the R-TENG can collect natural wind on windy seashores and moving vehicles to charge capacitors and successfully drive small electronic devices in real time. The experimental results indicate that the stacked PTFE/FKM/Wool R-TENG exhibits considerable output performance, making it a promising solution for efficiently capturing wind energy from all directions.

Abstract Image

一种基于羊毛与堆叠界面旋转摩擦的滚筒式摩擦电纳米发电机,用于全方位风能收集
随着物联网(IoT)时代的到来,迫切需要开发高性能的风能集热器,为众多微电子设备供电。提出了一种基于羊毛与堆叠界面旋转摩擦的滚筒式摩擦电纳米发电机(R-TENG),并将其有效地用于风能收集。羊毛是一种具有正电性和柔韧性的材料,在设计中使用,有效地减少了接触面的磨损,并根据不同的压缩水平调整输出。导电层通过将不同的摩擦电材料按一定的顺序堆叠而产生更多的感应电荷,大大提高了输出性能。通过增加底部发电机组,可以充分利用机组内部空间,提高机组能量转换效率。在电机转速为900 rpm时,R-TENG的瞬时开路电压(VOC)、短路电流(ISC)和转移电荷(QSC)分别可达1504 V、67.24 μA和157.4 nC。通过整流桥连接到负载后,R-TENG的最大功率输出为14.58 mW,瞬时功率密度为11.7 W/m3。在实验室风能收集实验中,该设计可以轻松驱动至少720个led,并在78秒内将2000 μF的电容器充电至1.5 V左右。实际上,R-TENG可以收集多风海岸和移动车辆上的自然风,为电容器充电,并成功地实时驱动小型电子设备。实验结果表明,聚四氟乙烯/FKM/WOOL R-TENG复合材料具有良好的输出性能,是一种有效捕获各方向风能的解决方案。
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来源期刊
Nanoscale
Nanoscale CHEMISTRY, MULTIDISCIPLINARY-NANOSCIENCE & NANOTECHNOLOGY
CiteScore
12.10
自引率
3.00%
发文量
1628
审稿时长
1.6 months
期刊介绍: Nanoscale is a high-impact international journal, publishing high-quality research across nanoscience and nanotechnology. Nanoscale publishes a full mix of research articles on experimental and theoretical work, including reviews, communications, and full papers.Highly interdisciplinary, this journal appeals to scientists, researchers and professionals interested in nanoscience and nanotechnology, quantum materials and quantum technology, including the areas of physics, chemistry, biology, medicine, materials, energy/environment, information technology, detection science, healthcare and drug discovery, and electronics.
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