High Durable Bio-Inspired Self-Cleaning Solid-Liquid Contact Triboelectric Nanogenerator for Water Wave Energy Harvesting

Published: Jan. 1, 2025

Language: Английский

---

High‐Sensitive Bubble Level‐Based Triboelectric Sensor for Motion Monitoring

Energy Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 28, 2025

The self‐powered motion sensor based on solid friction electrification has attracted more and attention since its independent sustainable operation without an external power source in vibration monitoring. However, the measurement accuracy of these sensors is often affected by large force instability between solids, which highly limits their practical applications. Here, a novel high‐resolution bubble level‐based triboelectric (BL‐TES) proposed to detect weak vibrations basing liquid–solid triboelectrification inertial oscillations bubble. results indicate that electric signal BL‐TES can information real time with high sensitivity. Compared solid‐based dominated threshold static solid–solid force, solid–liquid very small high‐pressure differential driven result resolution 0.35 m s −2 sensitivity 6.35 nA −1 . Given easy fabrication high‐sensitive property, this type promising potential applications scavenging mechanical energy detecting vibration.

Language: Английский

---

Highly Adaptive and Sustainable Oil Purification Driven by Triboelectric Nanogenerator

Advanced Materials Technologies, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Abstract Oil contamination poses a critical challenge in mechanical systems, leading to significant degradation oil performance, and adversely affecting machinery operation longevity. This study introduces an innovative electrostatic purification method based on freestanding rotary triboelectric nanogenerator (FR‐TENG). By harnessing ambient energy, the FR‐TENG generates high‐voltage electric field, which induces forces solid contaminants, causing them migrate adhere dust collector. Multi‐physics simulations are utilized investigate dynamics explore underlying mechanisms, providing comprehensive understanding of process. Experiments further confirm that this is highly effective removing particles from with high moisture content while dehydrating oil. Compared traditional methods, require levels below 1000 ppm, maintains efficiency even containing up 10% content, extending permissible limit by nearly 100‐fold. These findings highlight potential adaptive sustainable technique for purification, allowing simultaneous efficient particle dehydration scenarios contamination. Thus paving way broader applications TENG technology industrial treatment.

Language: Английский

---

High Durable Bio-Inspired Self-Cleaning Solid-Liquid Contact Triboelectric Nanogenerator for Water Wave Energy Harvesting

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110971 - 110971

Published: April 1, 2025

Language: Английский

---

Arrayed-Smart Bracelet with Dielectrically Enhanced Hydrophobicity for Swimming Instructions

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 19, 2025

Triboelectric nanogenerators (TENGs) offer new avenues for the development of sustainable energy conversion and self-powered smart devices, where triboelectric materials with high dielectric constant may be key enhancing surface charge density output. In this study, different concentrations barium titanate (BTO) nanoparticles are introduced into polycarbonate (PC) matrix using phase inversion technique. A high-performance TENG (PB-TENG) was then developed a power 436 mW/m2 as-synthesized PC/BTO composite film as positive electrode material. Compared to PB-TENG at 0% BTO doping, peak increased by 153%. This enhancement output should attributed synergistic effect roughness film. The Arrayed-Smart Bracelet (A-SB) is designed health monitoring motion recognition in swimming, offering sensitivity, stability, selectivity water sports safety monitoring.

Language: Английский

---

Native Lignin Migration and Clustering in Wood: Superhydrophobic, Antimold, and Tribonegative Layers for Rain‐Driven Electrification

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 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.

Language: Английский

---

High-Performance Solid-Liquid Triboelectric Nanogenerator Enabled by Dual Physicochemical Modification for Wearable Sensing

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 111061 - 111061

Published: April 1, 2025

Language: Английский

---

Thermally Stable and Shape‐Adaptive Triboelectric Nanogenerators Based on Liquid Electrolytes with Low Vapor Pressure

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract Aqueous solution‐based liquid electrode triboelectric nanogenerators (TENGs) have attracted considerable interest in recent years due to their exceptional stretchability, deformability, and inherent shape‐adaptability. However, previous aqueous TENGs face challenges related drying, which may lead operational failures. In this study, a low‐vapor pressure (LVPL) TENG (LVPL‐TENG) is presented that uses branched polyethyleneimine (bPEI) or deep eutectic solvent, choline chloride/glycerol (ChCl:Gly), increase the stability of at high temperatures. The LVPL‐TENGs achieve power density ≈6.2 4.0 w m −2 when using bPEI ChCl:Gly as electrodes, respectively. Furthermore, these devices remarkable energy harvesting capabilities while being stretched up 400%. Importantly, maintain constant electrical output after stored 100 °C for 24 h. Utilizing simple single‐electrode design, can efficiently harvest various small physiological movements, i.e., finger bending, grasping coffee cup, clicking computer mouse. Additionally, potential function self‐powered tactile sensors detect touch any material object, indicating promising applications realm human‐machine interaction. This study opens new avenues deploying stretchable shape‐adaptable operating

Language: Английский

---

Probing Leidenfrost effect via contact electrification

Nano Energy, Journal Year: 2024, Volume and Issue: 134, P. 110570 - 110570

Published: Dec. 11, 2024

Language: Английский

---