Science and Technology of Advanced Materials ( IF 5.5 ) Pub Date : 2020-03-05 Jihoon Chung, Handong Cho, Hyungseok Yong, Deokjae Heo, You Seung Rim, Sangmin Lee
The triboelectric nanogenerator (TENG) is a recent mechanical energy harvesting technology that has been attracting significant attention. Its working principle involves the combination of triboelectrification and electrostatic induction. The TENG can harvest electrical energy from both solid–solid and liquid–solid contact TENGs. Due to their physical difference, triboelectric materials in the solid–solid TENG need to have high mechanical properties and the surface of the liquid–solid contact TENG should repel water. Therefore, the surface of the TENG must be versatile for applications in both solid–solid and liquid–solid contact environments. In this work, we develop a solid–solid/liquid–solid convertible TENG that has a slippery liquid-infused porous surface (SLIPS) at the top of the electrode. The SLIPS consists of a HDFS coated hierarchical Al(OH)3 structure and fluorocarbon liquid. The convertible TENG developed in this study is capable of harvesting electricity from both solid–solid and liquid–solid contacts due to the high mechanical property of Al(OH)3 and the water-based liquid repelling nature of the SLIPS. When the contact occurs in freestanding mode, electrical output was generated through solid–solid/liquid–solid sliding motions. The convertible TENG can harvest electricity from both solid–solid and liquid–solid contacts; thus, it can be a unified solution for TENG surface fabrication.
中文翻译:
基于氟碳液体注入表面的固体-固体/液体-固体摩擦电纳米发电机的通用表面
摩擦电纳米发电机(TENG)是一种最新的机械能收集技术,受到了广泛的关注。它的工作原理涉及摩擦起电和静电感应的结合。TENG可以从固-固接触和液-固接触TENG收集电能。由于它们的物理差异,固体-固体TENG中的摩擦电材料需要具有较高的机械性能,并且液体-固体接触TENG的表面应排斥水。因此,在固体-固体和液体-固体接触环境中,TENG的表面必须具有通用性。在这项工作中,我们开发了一种固-固/液-固可转换的TENG,该TENG在电极顶部具有光滑的注液多孔表面(SLIPS)。3结构与碳氟化合物液体。由于Al(OH)3的高机械性能和SLIPS的水排斥性,本研究开发的可转换TENG能够从固-固和液-固接触中收集电力。当接触以独立模式发生时,通过固体-固体/液体-固体滑动运动产生电输出。可转换的TENG可以从固-固接触和液-固接触中获取电力。因此,它可以成为TENG表面制造的统一解决方案。