Yu Bin, Long Jing, Huang Tao, Xiang Zhengchen, Liu Mengjiao, Zhang Xin, Zhu Jianghua, Yu Hao
State Key Lab for Modification of Chemical Fibers & Polymer Materials, College of Material Science & Engineering, Donghua University, Shanghai 201620, P. R. China.
Department of Physical Education, Donghua University, Shanghai 201620, P. R. China.
ACS Omega. 2023 Aug 16;8(34):31427-31435. doi: 10.1021/acsomega.3c04090. eCollection 2023 Aug 29.
Fiber-based triboelectric nanogenerators (F-TENGs), a green and sustainable energy-harvesting and transformation technology, hold great potential in the areas of portable energy harvesters and smart wearable sensors. Herein, the core-sheath structure F-TENGs (CF-TENGs) are developed by using continuous production equipment. The CF-TENGs, consisting of an elastic conductive fiber (core layer) and silicone rubber (sheath layer), can simultaneously accomplish stable reversible strain and excellent electrical output performance. High outputs (an open-circuit voltage of 17.5 V and a short-circuit current of 0.1 μA at a frequency of 1 Hz) can be attained when the CF-TENGs (a length of 5 cm) are contacted with a nylon fabric. The CF-TENGs not only act as self-powered sensors for applications in motion monitoring but also efficiently transfer mechanical energy into electric energy. As self-powered wearable sensors, the CF-TENGs can accurately indicate various human physiological movements. Moreover, they can be applied on straight-arm sit-up sensing to achieve standardized sport testing. Importantly, a CF-TENG-based weaved fabric presents high electrical performance to meet requirements as an energy harvester. These CF-TENGs provide a significant insight to facilitate the development of fiber-based triboelectric applications.
基于纤维的摩擦电纳米发电机（F-TENGs）是一种绿色可持续的能量收集与转换技术，在便携式能量收集器和智能可穿戴传感器领域具有巨大潜力。在此，采用连续生产设备开发了核壳结构的F-TENGs（CF-TENGs）。由弹性导电纤维（芯层）和硅橡胶（鞘层）组成的CF-TENGs能够同时实现稳定的可逆应变和优异的电输出性能。当长度为5厘米的CF-TENGs与尼龙织物接触时，在1赫兹频率下可获得高输出（开路电压为17.5伏，短路电流为0.1微安）。CF-TENGs不仅可作为自供电传感器用于运动监测，还能有效地将机械能转化为电能。作为自供电可穿戴传感器，CF-TENGs能够准确指示各种人体生理运动。此外，它们可应用于直臂仰卧起坐传感，以实现标准化运动测试。重要的是，基于CF-TENGs的织物具有高电性能，可满足作为能量收集器的要求。这些CF-TENGs为推动基于纤维的摩擦电应用发展提供了重要见解。
