High‐Performance Droplet‐Based Triboelectric Nanogenerators: A Comparison of Device Configuration and Operating Parameters DOI Open Access

Kanokwan Chaithaweep,

Utchawadee Pharino,

Satana Pongampai

et al.

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

Published: Jan. 14, 2025

Abstract Droplet‐based electricity generators (DEGs) harness liquid‐solid electrification to convert water droplets impacts into electrical energy. This study systematically examines how droplet height, volume, flow rate, and substrate tilt angle influence DEG performance using polytetrafluoroethylene (PTFE) as a triboelectric layer deionized water. Three electrode designs (double, top, bottom) are evaluated, revealing that the double‐electrode configuration delivers highest output. enhanced arises from synergistic motion, double‐layer formation, charge discharge, validated by an equivalent circuit model. By varying heights 1–20 cm, volumes of 7.7–50 µL, rates 50–300 drops/min, angles 0–90°, optimized setup yields −70 V 22 mA, translating power density 0.28 µW cm −2 . High‐speed imaging correlates these outputs with impact dynamics resulting transfer. Additionally, can small electronic devices, capacitors, monitor artificial acid rain in real‐time, displaying distinct signals compared typical rainwater. These findings underscore potential DEGs renewable energy harvesters smart environmental sensors, paving way for advanced on‐demand generation diverse settings.

Language: Английский

Influence of temperature difference on performance of solid-liquid triboelectric nanogenerators DOI
Fan Shen, Di Zhang, Qin Zhang

et al.

Nano Energy, Journal Year: 2022, Volume and Issue: 99, P. 107431 - 107431

Published: May 27, 2022

Language: Английский

Citations

82
Mechanically Ultra‐Robust, Elastic, Conductive, and Multifunctional Hybrid Hydrogel for a Triboelectric Nanogenerator and Flexible/Wearable Sensor DOI Open Access
Yong Long, Zhuo Wang, Fan Xu

et al.

Small, Journal Year: 2022, Volume and Issue: 18(47)

Published: Oct. 13, 2022

Abstract Flexibility/wearable electronics such as strain/pressure sensors in human–machine interactions (HMI) are highly developed nowadays. However, challenges remain because of the lack flexibility, fatigue resistance, and versatility, leading to mechanical damage device materials during practical applications. In this work, a triple‐network conductive hydrogel is fabricated by combining 2D Ti 3 C 2 T x nanosheets with two kinds 1D polymer chains, polyacrylamide, polyvinyl alcohol. The act crosslinkers, which combine chains PAM PVA via hydrogen bonds. Such unique structure endows (MPP‐hydrogel) merits ultra‐robust, super‐elasticity, excellent resistance. More importantly, introduced not only enhance hydrogel's conductivity but help form double electric layers (DELs) between MXene free water molecules inside MPP‐hydrogel. When MPP‐hydrogel used electrode triboelectric nanogenerator (MPP‐TENG), due dynamic balance DELs under initial potential difference generated from contact electrification driving force, an enhanced electrical output TENG generated. Moreover, flexible for tiny low‐frequency human motion detection achieved. This work demonstrates promising electronic material e‐skin HMI.

Language: Английский

Citations

72
Liquid–Solid Triboelectric Nanogenerator Arrays Based on Dynamic Electric‐Double‐Layer for Harvesting Water Wave Energy DOI
Xi Liang, Shijie Liu, Shiquan Lin

et al.

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(24)

Published: May 10, 2023

Abstract In the new energy era, ocean wave is recognized as one of most important clean and renewable sources. As an advanced technology, developing triboelectric nanogenerators (TENGs) to harvest has become a promising research direction. However, for current fully enclosed TENGs or liquid–solid TENGs, industrialization limited. this work, TENG with working scheme proposed water harvesting. Through designing opposite dynamic electric‐double‐layers, efficient conversion kinetic into electrical achieved. Moreover, structure extended array. Under irregular waves, array exhibits desired output performance, stable 60.0 µA, voltage V, average power density 5.38 W m −3 . Finally, demonstrated successfully signal spotlights, digital thermometer quality detector. This study not only broadens ideas but also provides mechanism exploitation, which great significance blue energy.

Language: Английский

Citations

67
Advanced Dielectric Materials for Triboelectric Nanogenerators: Principles, Methods, and Applications DOI
Yi Li,

Yi Luo,

Haocheng Deng

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(52)

Published: March 22, 2024

Abstract Triboelectric nanogenerator (TENG) manifests distinct advantages such as multiple structural selectivity, diverse selection of materials, environmental adaptability, low cost, and remarkable conversion efficiency, which becomes a promising technology for micro‐nano energy harvesting self‐powered sensing. Tribo‐dielectric materials are the fundamental core components high‐performance TENGs. In particular, charge generation, dissipation, storage, migration dielectrics, dynamic equilibrium behaviors determine overall performance. Herein, comprehensive summary is presented to elucidate dielectric transport mechanism tribo‐dielectric material modification principle toward The contact electrification started first, followed by introducing basic Subsequently, mechanisms strategies highlighted regarding physical/chemical, surface/bulk, coupling, structure optimization. Furthermore, representative applications based TENGs power sources, sensors demonstrated. existing challenges potential opportunities advanced outlined, guiding design, fabrication, materials.

Language: Английский

Citations

67
Triboelectric Nanogenerator Array as a Probe for In Situ Dynamic Mapping of Interface Charge Transfer at a Liquid–Solid Contacting DOI
Jinyang Zhang, Shiquan Lin, Zhong Lin Wang

et al.

ACS Nano, Journal Year: 2023, Volume and Issue: 17(2), P. 1646 - 1652

Published: Jan. 5, 2023

Contact between water droplets with hydrophobic surfaces is a common phenomenon at functional interfaces, and it has been extensively studied. However, quantifying the charge transfer liquid–solid interfacial contacting, especially for density distribution throughout movement of liquid droplet on dielectric surface, remains to be investigated. Here, we developed pixeled triboelectric nanogenerator (pixeled droplet-TENG) array high-density electrode as probe measuring interface when drop moves surface. To intuitively observe interface, "imaged" transferred charges along trajectory slides tilted solid surface spatial resolution 0.4 mm time sensitivity 0.02 s. Our study shows that are not uniformly distributed path, which possibly due two-step model electron ion adsorbed thus formation an electric double layer will inevitably shield net presents technology potential applications in chemistry, physics, material science, cell biology.

Language: Английский

Citations

57
Contact-electro-catalysis (CEC) DOI
Ziming Wang, Xuanli Dong, Wei Tang

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(9), P. 4349 - 4373

Published: Jan. 1, 2024

Contact-electro-catalysis (CEC) is an emerging field that utilizes electron transfer occurring at the liquid–solid and even liquid–liquid interfaces because of contact-electrification effect to stimulate redox reactions.

Language: Английский

Citations

43
Spontaneous Wetting Induced by Contact‐Electrification at Liquid–Solid Interface DOI
Zhen Tang, Dan Yang, Hengyu Guo

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(25)

Published: March 26, 2024

Abstract Wettability significantly influences various surface interactions and applications at the liquid–solid interface. However, understanding is complicated by intricate charge exchange occurring through contact electrification (CE) during this process. The of influence triboelectric on wettability remains challenging, especially due to complexities involved in concurrently measuring angles interfacial electrical signals. Here, relationship investigated between density change angle dielectric films after with water droplets. It observed that when spared lead a spontaneous wetting phenomenon, which termed as induced (CEW). Notably, these results demonstrate linear dependence (CA) materials solid surface. Continuous CEW tests show not only static CA but also dynamics are influenced accumulation charges mechanism behind involves redistribution polar molecules within liquid. This interaction decrease interface energy, leading reduction CA. Ab initio calculations suggest energy may stem from enhanced substrate, strengthens hydrogen bond substrate. These findings have potential advance CE phenomena, harvesting, catalysis, droplet manipulation interfaces.

Language: Английский

Citations

28
Enhancing the Output of Liquid–Solid Triboelectric Nanogenerators through Surface Roughness Optimization DOI

Zunkang Zhou,

Huaifang Qin,

Peng Cui

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(4), P. 4763 - 4771

Published: Jan. 2, 2024

The advent of liquid–solid triboelectric nanogenerators (LS-TENGs) has ushered in a new era for harnessing and using energy derived from water. To date, extensive research been conducted to enhance the output LS-TENGs, thereby improving water utilization efficiency facilitating their practical application. However, contrast intricate chemical treatment methods specialized structures, straightforward operational process cost-effective materials are more conducive widespread adoption LS-TENGs applications. This work presents novel method by increasing contact area. approach involves creating roughness on solid surface through sandpaper grinding, which is simple design easy operate significantly reduces cost experiment. theory applied layer commonly used LS-TENG, demonstrating its universality wide applicability improve LS-TENG. performance device demonstrated charging capacitor external load driving hygrometer commercial 5 W LED light bulb, can directly up 300 light-emitting diodes (LEDs) driven drop provides optimization contributes application LS-TENGs. significant step forward field harvesting utilization.

Language: Английский

Citations

26
Advances in liquid-solid triboelectric nanogenerators and its applications DOI

Tengfei Xiang,

Xuxin Chen,

Hui Sun

et al.

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 214, P. 153 - 169

Published: July 17, 2024

Language: Английский

Citations

25
Boosting the Output of Liquid–Solid Triboelectric Nanogenerator by an External Charge‐Pumping Strategy DOI
Peipei Wu, Peng Yang, Zhaoqi Liu

et al.

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(16)

Published: Jan. 12, 2024

Abstract In recent years, liquid–solid triboelectric nanogenerator (LSTENG) has attracted great attention. However, its low average power density and long charging time limit the practical application of this technique. Here, for first time, a combined with external charge‐pumping method (ECP‐LSTENG) is proposed. Compared to traditional LSTENGs, charge storage capacitor added in ECP‐LSTENG store output charges from pumping generator. Then, extraction formed by spreading shrinking processes falling droplet, while discharging process between capacitors can generate displacement current circuit. Meanwhile, it found that special charged droplets adhesion phenomenon happens at interface, which seriously hinders continuous ECP‐LSTENG. To overcome limitation, coaxial deceleration commutation component designed ensure Finally, peak droplet (50 µL) reaches 231.8 W m −2 , surpassing highest research record date 1.43 times. This provides different approach future development large‐scale integrated raindrop generators efficient energy harvesting.

Language: Английский

Citations

21