Low-cost, environmentally friendly and high-performance cellulose-based triboelectric nanogenerator for self-powered human motion monitoring

Cellulose-based triboelectric nanogenerators (TENGs) can provide power for various monitoring devices and are environmentally friendly sustainable. Chemical functional modification is a common method to improve the electrical output performance of cellulose-based TENGs. In this work, an high-performance nanogenerator based on polydopamine/cellulose nanofibril (PDA/CNF) composite membrane fluorinated ethylene propylene was developed. Dopamine generates polydopamine nanoparticles through oxidative self-polymerization adheres surface nanofibers. The synergistic effect amino group introduction microstructure effectively enhanced TENGs certain extent. effects PDA content, CNF film thickness different working conditions were systematically investigated. optimized PDA/CNF-TENGs exhibited with voltage, current, density values ?205 V, ?20 µA, ?48.75 ?W·cm?2, respectively. stable identifiable signals when used as self-powered sensor human motion monitoring, showing potential prospects cellulose materials TENGS other electronic applications.