
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Апрель 21, 2025
Abstract The development of wood‐based materials for energy harvesting, particularly triboelectric nanogenerators (TENGs), has recently attracted significant attention. Traditional strategies TENG primarily rely on delignification to enhance tribo‐positivity, overlooking the intrinsic potential lignin and necessitating use fluoropolymers maintain performance. In this study, native within wood matrix is used create a superhydrophobic, fully tribonegative material (referred as Lig‐wood), functioning liquid–solid nanogenerator (L–S TENG) upon contact with water. Through process pretreatment in‐situ regeneration, undergoes migration, assembly, redistribution wood's hierarchical architecture. This results in enhanced hydrophobicity (water angle 148°) efficient surface charge transfer. morphological chemical changes significantly boost Lig‐wood's performance, achieving 7.5‐fold increase voltage 6‐fold current compared unmodified wood. Lig‐wood powers LEDs digital timers under simulated rainfall, demonstrating its functionality green harvesting material. Importantly, surface‐localized imparts self‐cleaning antimold properties, supporting long‐term, outdoor use. By leveraging inherent functionalities lignin, approach presents sustainable strategy rain‐driven representing advancement renewable technologies.
Язык: Английский