Slippery contact on organogel enabling droplet energy harvest

Cui, Peng; Ge, Ying; Yao, Xi; Wang, Jingjing; Zhang, Jingjing; Meng, Huan; Liu, Lan; Wang, Jingsheng; Ju, Jie; Cheng, Gang; Du, Zongliang

doi:10.1016/j.nanoen.2023.108286

Cited by 15 publications

(8 citation statements)

References 27 publications

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“…1f), the D-TENG with a CE demonstrates a significantly higher output voltage. 32–35 Moreover, the D-TENG with a CE maintains its output performance without degradation during continuous water droplet energy harvesting for over 45 000 cycles (Fig. 1g), showcasing remarkable stability and durability.…”

Section: Resultsmentioning

confidence: 94%

Fluorine-free coating-based droplet triboelectric nanogenerators for highly efficient energy harvesting

Wang,

Feng,

Wang

et al. 2024

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 94%

Fluorine-free coating-based droplet triboelectric nanogenerators for highly efficient energy harvesting

Wang,

Feng,

Wang

et al. 2024

J. Mater. Chem. A

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“…The structure design is used to modify the shape of individual components of TENGs to accommodate en-ergy harvesting in various scenarios. For example, the singleelectrode structure is used to harvest droplet energy, [56][57][58] the sealed sphere structure is employed to harvest wave energy, [59][60][61] and the tube structure is designed for harvesting kinetic energy of water flow. [62,63] The structure adapted to the environment helps improve energy harvesting efficiency.…”

Section: Performance-enhancing Techniques and Their Applicationsmentioning

confidence: 99%

“…[126] The researchers found that the freestanding mode TENG had superior output performance compared to the traditional single-electrode droplet TENG. [56][57][58]128,129] The output current varied when droplets impacted different positions of the PTFE layer at the same height, with the highest current occurring when the droplets completely impacted one of the electrodes. This was because the droplets disrupted the The impact of the droplet on the output signal.…”

Section: Droplet Tengmentioning

confidence: 99%

A Comprehensive Review of Advancements and Challenges from Solid–Solid to Liquid–Solid Triboelectric Nanogenerators

Cheng,

Zhang,

et al. 2024

Adv Materials Technologies

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As the increasing scarcity of fossil fuels and the ever‐present need to address environmental concerns are faced, the development of efficient and sustainable energy harvesting techniques gains more and more significance. The liquid–solid triboelectric nanogenerator (TENG) has emerged as a promising solution for harvesting mechanical energy in water. Although the liquid–solid contact electrification technique is studied by numerous researchers, there is still a need to enhance energy harvesting efficiency in liquid–solid TENG. This comprehensive review discusses recent advances in kinetic energy harvesting from water, focusing on the solid–solid and liquid–solid interaction mechanisms when using TENGs as an energy conversion medium. The review summarizes the recent developments in structure design and material improvements, as well as hybridization with other generators as methods of enhancing the output performance of TENG. Besides discussing advancements of TENG, the potential impact and future challenges of liquid–solid TENG are highlighted. This paper provides insight into the current state of knowledge and the future directions of research in the field of liquid–solid TENG energy harvesting.

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“…Liquid–solid triboelectric nanogenerators (LS-TENGs) harness energy from water, capturing low-frequency, irregular energy from raindrops, , rivers, , and oceans. , Their performance is influenced by the properties of the liquid and the material surfaces and interfaces . The wettability and surface charge density of solid materials are pivotal in the electrification of liquid–solid contact. − Adjusting the chemical composition and surface structure of the solid material can create different surface wettability. Hydrophobicity of the solid surface promotes effective mass transfer and charge generation, enhancing the output performance of the LS-TENGs .…”

Section: Introductionmentioning

confidence: 99%

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

Zhou,

Qin,

Cui

et al. 2024

ACS Appl. Mater. Interfaces

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

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Slippery contact on organogel enabling droplet energy harvest

Cited by 15 publications

References 27 publications

Fluorine-free coating-based droplet triboelectric nanogenerators for highly efficient energy harvesting

Fluorine-free coating-based droplet triboelectric nanogenerators for highly efficient energy harvesting

A Comprehensive Review of Advancements and Challenges from Solid–Solid to Liquid–Solid Triboelectric Nanogenerators

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

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