Integrated Design of Highly Porous Cellulose- Loaded Polymer-Based Triboelectric Films toward Flexible, Humidity-Resistant, and Sustainable Mechanical Energy Harvesters
Integrated Design of Highly Porous Cellulose- Loaded Polymer-Based Triboelectric Films toward Flexible, Humidity-Resistant, and Sustainable Mechanical Energy Harvesters
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DOI：
10.1021/acsenergylett.0c00635
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发表时间：
2020-07-10
影响因子：
22
通讯作者：
Yu, Jae Su
中科院分区：
文献类型：
--
作者：
Graham, Sontyana Adonijah;Dudem, Bhaskar;Yu, Jae Su
本文提出了一种高性能的可穿戴且耐湿的纤维素基柔性摩擦纳米发电机（FTENG）装置。在这方面，将从棉花中提取的纤维素与聚（乙烯醇）溶液相结合，并喷涂到导电柔性基材上，以开发出高度多孔且柔性的摩擦电膜（HPF），用于制造 FTENG。通过改变 HPF 的表面积，全面研究了电性能对表面积的依赖性。此外，基于 HPF 的 FTENG (HPF-FTENG) 重量轻、灵活且坚固；加工成本低；并能承受潮湿的环境。因此，所提出的装置不仅可用于清除周围环境内的各种机械扰动，还可用于在水下和恶劣的环境条件下收集机械能。最后，HPF-FTENG 产生的电力被用来为各种便携式电子设备供电，这支持了可穿戴和耐用机械能量采集器的范式转变。
A wearable and humidity-resistant cellulose-based flexible triboelectric nanogenerator (FTENG) device with high performance is proposed here. In this regard, cellulose extracted from cotton was combined with a poly(vinyl alcohol) solution and spray-coated onto a conductive-flexible substrate to develop a highly porous and flexible triboelectric film (HPF) which was employed in the fabrication of a FTENG. The dependence of electrical performance on the surface area was comprehensively studied by varying the surface area of the HPF. Furthermore, the HPF-based FTENG (HPF-FTENG) is lightweight, flexible, and robust; has a low processing cost; and can withstand a humid environment. Thus, the proposed device can be used not only to scavenge various mechanical disturbances within the surrounding environment but also to harvest mechanical energy underwater and in harsh environmental conditions. Finally, the electricity generated by the HPF-FTENG was employed to power various portable electronics, which supports a paradigm shift in the context of wearable and durable mechanical energy harvesters.