All-Fiber-Based Superhydrophobic Wearable Self-Powered Triboelectric Nanogenerators for Biomechanical and Droplet Energy Harvesting

Zhang, Ruizhe; Shen, Lei; Li, Jiehui; Xue, Yuyu; Liu, Hui; He, Jinmei; Qu, Mengnan

doi:10.1021/acsanm.3c04628

Cited by 5 publications

(3 citation statements)

References 54 publications

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“…For example, an all-fiber-based single electrode triboelectric nanogenerator (F-TENG) using electrostatic spinning technology and a coating process is a polyvinylidene fluoride (PVDF) nanofiber membrane with a built-in polydopamine (PDA) e-coated carbon cloth electrode. The open-circuit voltage, short-circuit current, and maximum power density of this F-TENG are 270 V, 80 μA, and 1.79 W/m 2 , respectively 118 . In addition, chitosan extracted from shrimp shells was used for electrostatic spinning to prepare electrostatically spun fibers with chitosan concentrations of 1.5 wt%, 2 wt%, and 2.5 wt%, respectively, and to compare the piezoelectric properties of electrostatically spun fibers with different concentrations of chitosan (Fig.…”

Section: Applicationsmentioning

confidence: 92%

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Recent advances in solid–liquid triboelectric nanogenerator technologies, affecting factors, and applications

Yuan,

Guo

2024

Sci Rep

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Converting dispersed mechanical energy into electrical energy can effectively improve the global energy shortage problem. The dispersed mechanical energy generated by liquid flow has a good application prospect as one of the most widely used renewable energy sources. Solid–liquid triboelectric nanogenerator (S–L TENG) is an inspiring device that can convert dispersed mechanical energy of liquids into electrical energy. In order to promote the design and applications of S–L TENG, it is of vital importance to understand the underlying mechanisms of energy conversion and electrical energy output affecters. The current research mainly focuses on the selection of materials, structural characteristics, the liquid droplet type, and the working environment parameters, so as to obtain different power output and meet the power supply needs of diversified scenarios. There are also studies to construct a theoretical model of S–L TENG potential distribution mechanism through COMSOL software, as well as to obtain the adsorption status of different kinds of ions with functional groups on the surface of friction power generation layer through molecular dynamics simulation. In this review, we summarize the main factors affecting the power output from four perspectives: working environment, friction power generation layer, conductive part, and substrate shape. Also summarized are the latest applications of S–L TENG in energy capture, wearable devices, and medical applications. Ultimately, this review suggests the research directions that S–L TENG should focus on in the future to enhance electrical energy output, as well as to expand the diversity of application scenarios.

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Section: Applicationsmentioning

confidence: 92%

“…( a ) WT-TENG charge transfer process picture 90 . ( b ) Nanofiber membrane made of PVDF-coated e-coated carbon cloth electrode 118 . ( c ) Dual-mode textile TENG with F-TENG and CS-TENG 120 .…”

Section: Applicationsmentioning

confidence: 99%

Recent advances in solid–liquid triboelectric nanogenerator technologies, affecting factors, and applications

Yuan,

Guo

2024

Sci Rep

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“…Paper-based superhydrophobic materials with unique wetting properties have a very wide range of applications in many fields such as smart packaging, energy harvesting and environmentally friendly coatings. − In order to prepare paper-based superhydrophobic materials, on one hand, it is necessary to construct a microscopic rough structure on the paper surface, and on the other hand, it is also desirable to reduce the free energy of the paper surface. Researchers have successfully prepared paper-based superhydrophobic materials using various processes such as layer by layer self-assembly, − the sol–gel method, surface chemical modification, , phase separation, the template method, , and electrostatic spinning technology, which exhibit excellent waterproofing, anticorrosion, self-cleaning, and oil–water separation properties. However, the single hydrophobic performance somewhat limits their applications in complex multitasking environments.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Flexible Ionically Conductive Superhydrophobic Papers via Deep Eutectic Polymer-Enhanced Interfacial Interactions

Xu,

Cao,

2024

Langmuir

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Endowing paper with highly flexible, conductive, and superhydrophobic properties will effectively expand its applications in fields such as green packaging, smart sensing, and paper-based electronics. Herein, a multifunctional superhydrophobic paper is reported in which a highly flexible transparent conductive substrate is prepared by introducing a hydrophobic deep eutectic polymer into the ethylcellulose network via a matrix swelling-polymerization strategy, and then the substrate is modified using fluorinated silica to impart superhydrophobicity. By introducing soft deep eutectic polymers, (1) the superhydrophobic paper can efficiently dissipate energy during deformation, (2) intrinsically ion-conducting deep eutectic polymers can endow the material with good electrical sensing properties, and (3) meanwhile, enhanced interfacial interactions can anchor inorganic particles, thereby improving the coating stability. The prepared superhydrophobic paper has an ultrahigh water contact angle (contact angle ≈ 162.2°) and exhibits a stable electrical response signal to external deformation/pressure, and the electrical properties are almost unaffected by external water molecules. In addition, the superhydrophobic paper was able to withstand 5000 bending−recovery cycles at a large angle of 150°, exhibiting stable electrical performance. The design concepts demonstrated here will provide insights into the development of superhydrophobic paper-based flexible electronic devices.

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Enhancing the Humidity Resistance of Triboelectric Nanogenerators: A Review

Zhang,

Boyer,

Zhang

2024

Small

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Triboelectric nanogenerators (TENGs) are sustainable energy resources for powering electronic devices from miniature to large‐scale applications. However, their output performance and stability can deteriorate significantly when TENGs are exposed to moisture or humidity caused by the ambient environment or human physiological activities. This review provides an overview of the recent research advancements in enhancing the humidity resistance of TENGs. Various approaches have been reviewed including encapsulation techniques, surface modification of triboelectric materials to augment hydrophobicity or superhydrophobicity, the creation of fibrous architectures for effective moisture dissipation, leveraging water assistance for TENG performance enhancement, and other strategies like charge excitation. These research efforts contribute to the improvement of environmental adaptability and lead to expanded practical TENG applications both as energy harvesters and self‐powered sensors. The efficacy of these strategies and future challenges are also discussed to facilitate the continued development of resilient TENGs in high humidity environments.

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All-Fiber-Based Superhydrophobic Wearable Self-Powered Triboelectric Nanogenerators for Biomechanical and Droplet Energy Harvesting

Cited by 5 publications

References 54 publications

Recent advances in solid–liquid triboelectric nanogenerator technologies, affecting factors, and applications

Recent advances in solid–liquid triboelectric nanogenerator technologies, affecting factors, and applications

High-Performance Flexible Ionically Conductive Superhydrophobic Papers via Deep Eutectic Polymer-Enhanced Interfacial Interactions

Enhancing the Humidity Resistance of Triboelectric Nanogenerators: A Review

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