Three-dimensional triboelectric nanogenerator with carboxymethylated cellulose nanofiber and perfluoroalkoxy films

Abstract

Here we describe the fabrication of a three-dimensional triboelectric nanogenerator (TENG) with car-boxymethylated cellulose nanofiber (CM-CNF) and perfluoroalkoxy (PFA) films. The origami designed TENG of CM-CNF/PFA is compact, flexible and lightweight with improved durability. We highlight the dependence of output performance of the TENG upon functionalization of the CM-CNF film along with various loading force and frequencies. Carboxymethylation of the cellulose nanofiber directly increases the output voltage and current of the CM-CNF/PFA TENG. The designed TENG can produce a maximum of 2000 lW of output power at 10 MX of load resistance under 10 N of force at 2 Hz. The generated elec-trical output from the TENG is stored in a capacitor and used to power light-emitting diodes. The TENG demonstrates an effective and portable system of functionalized CM-CNF films for energy harvesting with more than 10,000 cyclic test, which confirms no loss in output performance. (c) 2023 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.