Achieving High‐Efficiency Wind Energy Harvesting Triboelectric Nanogenerator by Coupling Soft Contact, Charge Space Accumulation, and Charge Dissipation Design

Advanced Functional Materials, Год журнала: 2023, Номер 34(2)

Опубликована: Сен. 29, 2023

Abstract To enhance the durability of a triboelectric nanogenerator (TENG), soft contact is an effective approach due to its flexible and elastic mode. However, hard obtain with large charge density by triboelectrification, resulting in low power output. Herein, novel blade TENG (BSC‐TENG), coupling functional blades shielded electrodes on rotor, accumulation, dissipation design stator, proposed. Extra polishing debris storage grooves are adopted BSC‐TENG further ensure high durability. A remarkable 328 µC m −2 achieved, setting new record for TENGs. Besides, output remains at 100% even after 200 000 cycles. The wind‐driven not only can 3840 green LEDs 80 parallel hygrothermometers but also drive electronic devices smart farms, establishing self‐powered sensing systems. This work provides strategy enhancing

Язык: Английский

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Facile Direct Growth of ZIF-67 Metal–Organic Framework for Triboelectric Nanogenerators and Their Application in the Internet of Vehicles

ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(47), С. 16806 - 16817

Опубликована: Ноя. 13, 2023

Metal–organic framework (MOF) materials have become a potential candidate in the field of triboelectric nanogenerators (TENGs). However, direct utilization MOFs TENG device technology is still relatively obscured area, with only limited number reports addressing this topic. Instead, most existing literature investigated composite that combine polymers or binder for fabrication. method does not accurately reveal actual properties MOFs. Consequently, growth on conducting substrates poses significant challenge realizing devices. This report addresses gap by employing simple, cost-effective hydrothermal directly growing ZIF-67 an aluminum (Al) substrate. The ZIF-67-based has yielded impressive results, achieving noteworthy maximum power density 2.35 W/m2. demonstrated practical applications effectively integrating into intelligent parking systems and providing to portable electronic Furthermore, approach employed study can be extended other which synthesized flexible substrates. research opens up new possibilities exploring inherent their placement within series.

Язык: Английский

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A New Single‐Electrode Generator for Water Droplet Energy Harvesting with A 3 mA Current Output

Advanced Energy Materials, Год журнала: 2023, Номер 14(5)

Опубликована: Дек. 10, 2023

Abstract Triboelectric nanogenerators (TENGs) based on water droplets can harvest kinetic energy using triboelectrification and electrostatic induction mechanisms. However, the development of traditional liquid–solid TENGs (L–S TENGs) is severely limited due to their low‐performance output high device encapsulation requirements for preparation technology. In this work, a single‐electrode mode droplet‐based TENG (D‐TENG) devised effectively by optimizing interface contact behavior droplets, increasing short‐circuit current ( I SC ) one drop from microamperes milliamperes levels. D‐TENG configuration, electrode positioned above dielectric rather than at bottom, allowing efficient utilization generated friction charges reducing dissipation these charges, thereby enhancing performance TENG. The influencing factors operational mechanisms are studied obtain optimized working conditions improve its performance. Under optimal conditions, saturate charge PTFE surface with only 8 achieving an up 3.51 mA voltage V O 298.27 V. This work provides convenient method efficiently harvesting interfacial control.

Язык: Английский

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Eco-friendly and humidity-sensitive cellulosic triboelectric materials tailored by xylanase for monitoring the freshness of fruits

Nano Energy, Год журнала: 2023, Номер 116, С. 108803 - 108803

Опубликована: Авг. 19, 2023

Язык: Английский

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Controllable Manipulation of Large‐Volume Droplet on Non‐Slippery Surfaces Based on Triboelectric Contactless Charge Injection

Advanced Materials, Год журнала: 2024, Номер 36(21)

Опубликована: Фев. 16, 2024

Controllable droplet manipulation is crucial in diverse scientific and engineering fields. Traditional electric-based methods usually rely on commercial high-voltage (HV) power sources, which are typically bulky, expensive, potentially hazardous. The triboelectric nanogenerator (TENG) a highly studied device that can generate HV output with limited current, showing great potential applications. However, current TENG-based approaches utilize traditional free-standing TENGs produce short-pulsed alternating-current signals. This limitation hinders continuous electrostatic forces necessary for precise control, leading to complex circuitry suboptimal motion control terms of volume, distance, direction, momentum. Here, contactless charge injection (TCCI) method employing novel dual-functional (DF-TENG), proposed. DF-TENG both high voltage constant during unidirectional motion, enabling corona discharges into the droplets. Using this method, large-volume (3000 µL) be controlled momentum up 115.2 g mm s

Язык: Английский

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