Cellulose II Aerogel-Based Triboelectric Nanogenerator

Lei Zhang, Yang Liao, Yi Cheng Wang, Steven Zhang, Weiqing Yang, Xuejun Pan, Zhong Lin Wang

Research output: Contribution to journalArticlepeer-review

Abstract

Cellulose-based triboelectric nanogenerators (TENGs) have gained increasing attention. In this study, a novel method is demonstrated to synthesize cellulose-based aerogels and such aerogels are used to fabricate TENGs that can serve as mechanical energy harvesters and self-powered sensors. The cellulose II aerogel is fabricated via a dissolution–regeneration process in a green inorganic molten salt hydrate solvent (lithium bromide trihydrate), where. The as-fabricated cellulose II aerogel exhibits an interconnected open-pore 3D network structure, higher degree of flexibility, high porosity, and a high surface area of 221.3 m2 g−1. Given its architectural merits, the cellulose II aerogel-based TENG presents an excellent mechanical response sensitivity and high electrical output performance. By blending with other natural polysaccharides, i.e., chitosan and alginic acid, electron-donating and electron-withdrawing groups are introduced into the composite cellulose II aerogels, which significantly improves the triboelectric performance of the TENG. The cellulose II aerogel-based TENG is demonstrated to light up light-emitting diodes, charge commercial capacitors, power a calculator, and monitor human motions. This study demonstrates the facile fabrication of cellulose II aerogel and its application in TENG, which leads to a high-performance and eco-friendly energy harvesting and self-powered system.

Original languageEnglish (US)
Article number2001763
JournalAdvanced Functional Materials
Volume30
Issue number28
DOIs
StatePublished - Jul 1 2020

Keywords

  • energy harvesting
  • human motion monitoring
  • regenerated cellulose
  • self-powered sensors
  • triboelectric nanogenerators

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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