Zhang Renyun, Dahlström Christina, Zou Haiyang, Jonzon Julia, Hummelgård Magnus, Örtegren Jonas, Blomquist Nicklas, Yang Ya, Andersson Henrik, Olsen Martin, Norgren Magnus, Olin Håkan, Wang Zhong Lin
Department of Natural Sciences, Mid Sweden University, Holmgatan 10, Sundsvall, SE-85170, Sweden.
FSCN, Surface and Colloid Engineering, Mid Sweden University, Holmgatan 10, Sundsvall, SE-85170, Sweden.
Adv Mater. 2020 Sep;32(38):e2002824. doi: 10.1002/adma.202002824. Epub 2020 Aug 16.
Triboelectric nanogenerators (TENGs) have attracted increasing attention because of their excellent energy conversion efficiency, the diverse choice of materials, and their broad applications in energy harvesting devices and self-powered sensors. New materials have been explored, including green materials, but their performances have not yet reached the level of that for fluoropolymers. Here, a high-performance, fully green TENG (FG-TENG) using cellulose-based tribolayers is reported. It is shown that the FG-TENG has an output power density of above 300 W m , which is a new record for green-material-based TENGs. The high performance of the FG-TENG is due to the high positive charge density of the regenerated cellulose. The FG-TENG is stable after more than 30 000 cycles of operations in humidity of 30%-84%. This work demonstrates that high-performance TENGs can be made using natural green materials for a broad range of applications.
摩擦纳米发电机（TENGs）因其出色的能量转换效率、多样的材料选择以及在能量收集装置和自供电传感器中的广泛应用而受到越来越多的关注。人们已经探索了包括绿色材料在内的新材料，但其性能尚未达到含氟聚合物的水平。在此，报道了一种使用基于纤维素的摩擦层的高性能全绿色TENG（FG-TENG）。结果表明，FG-TENG的输出功率密度高于300 W m ，这是基于绿色材料的TENG的新纪录。FG-TENG的高性能归因于再生纤维素的高正电荷密度。FG-TENG在30%-84%湿度下经过30000多次循环操作后仍保持稳定。这项工作表明，可以使用天然绿色材料制造出高性能的TENG，用于广泛的应用。
