Electrospun PVDF-TrFE/MXene Nanofiber Mat-Based Triboelectric Nanogenerator for Smart Home Appliances

ACS Applied Materials & Interfaces, Journal Year: 2021, Volume and Issue: 13(4), P. 4955 - 4967

Published: Jan. 21, 2021

Understanding of the triboelectric charge accumulation from view microcapacitor formation plays a critical role in boosting output performance nanogenerator (TENG). Here, an electrospun nanofiber-based TENG (EN-TENG) using poly(vinylidene fluoride-trifluoroethylene) (PVDF-TrFE)/MXene nanocomposite material with superior dielectric constant and high surface density is reported. The influence properties on EN-TENG investigated theoretically experimentally. fabricated exhibited maximum power 4.02 W/m2 at matching external load resistance 4 MΩ. PVDF-TrFE/MXene improved fourfold. successfully powered electronic stopwatch thermo-hygrometer by harvesting energy human finger tapping. Moreover, it was utilized smart home applications as self-powered switch for controlling electrical appliances, including fire alarms, fans, doors. This work presents effective innovative approach toward systems, human-machine interfaces, applications.

Language: Английский

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Recent Advances in Triboelectric Nanogenerators: From Technological Progress to Commercial Applications

ACS Nano, Journal Year: 2023, Volume and Issue: 17(12), P. 11087 - 11219

Published: May 23, 2023

Serious climate changes and energy-related environmental problems are currently critical issues in the world. In order to reduce carbon emissions save our environment, renewable energy harvesting technologies will serve as a key solution near future. Among them, triboelectric nanogenerators (TENGs), which is one of most promising mechanical harvesters by means contact electrification phenomenon, explosively developing due abundant wasting sources number superior advantages wide availability selection materials, relatively simple device configurations, low-cost processing. Significant experimental theoretical efforts have been achieved toward understanding fundamental behaviors range demonstrations since its report 2012. As result, considerable technological advancement has exhibited it advances timeline achievement proposed roadmap. Now, technology reached stage prototype development with verification performance beyond lab scale environment commercialization. this review, distinguished authors world worked together summarize state art theory, devices, systems, circuits, applications TENG fields. The great research achievements researchers field around over past decade expected play major role coming fruition unexpectedly accelerated next decade.

Language: Английский

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Soft fibers with magnetoelasticity for wearable electronics

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Nov. 19, 2021

Abstract Magnetoelastic effect characterizes the change of materials’ magnetic properties under mechanical deformation, which is conventionally observed in some rigid metals or metal alloys. Here we show magnetoelastic can also exist 1D soft fibers with stronger magnetomechanical coupling than that traditional counterparts. This explained by a wavy chain model based on dipole-dipole interaction and demagnetizing factor. To facilitate practical applications, further invented textile generator (MEG), weaving conductive yarns to couple induction, paves new way for biomechanical-to-electrical energy conversion short-circuit current density 0.63 mA cm −2 , internal impedance 180 Ω, intrinsic waterproofness. Textile MEG was demonstrated convert arterial pulse into electrical signals low detection limit 0.05 kPa, even heavy perspiration underwater situations without encapsulations.

Language: Английский

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MXenes for Energy Harvesting

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(21)

Published: Jan. 20, 2022

Abstract Energy harvesting modules play an increasingly important role in the development of autonomous self‐powered microelectronic devices. MXenes (i.e., 2D transition metal carbide/nitride) have recently emerged as promising candidates for energy applications due to their excellent electronic conductivity, large specific surface area, and tunable properties. Herein, a perspective on using harvest from various sources environment is presented. First, characteristics that facilitate capturing are systematically introduced preparation strategies derived nanostructures tailored toward such summarized. Subsequently, mechanism different (e.g., solar energy, thermoelectric triboelectric piezoelectric salinity‐gradient electrokinetic ultrasound humidity energy) discussed. Then, recent progress MXene‐based harvesting, well applications, introduced. Finally, opinions existing challenges future directions nanostructure

Language: Английский

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Materials Beyond Conventional Triboelectric Series for Fabrication and Applications of Triboelectric Nanogenerators

Advanced Energy Materials, Journal Year: 2021, Volume and Issue: 11(33)

Published: July 20, 2021

Abstract Triboelectric nanogenerators (TENGs) were first developed in 2012, and have become the desirable choice as energy harvesters research community worldwide. The popularity of TENGs is attributed to their low weight, cost, high output, wide range materials device designs. been explored for many applications including sensing, implantable power sources, healthcare, biomedical applications. performance depends largely on material since charge density (σ) a property. Moreover, 2D investigated an alternative conventional metal electrodes. dominance polymers metals traditional triboelectric series has lead researchers explore novel extend improve TENG output. This review article summarizes progress development frictional layers electrode TENGs. mechanism output enhancement are discussed detail. Finally, perspective future relevant challenges discussed.

Language: Английский

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Electrospun nanofiber based TENGs for wearable electronics and self-powered sensing

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 452, P. 139060 - 139060

Published: Sept. 9, 2022

There has been much recent interest in developing triboelectric nanogenerators (TENGs) to scavenge freely available mechanical energy address future requirements for clean and sustainable technologies. The macroscale performance of TENGs is determined by the multifaceted role surface material properties at nanoscale, which must be understood TENG development. To achieve desired performance, various protocols fabrication tuning surfaces materials are required. A particularly viable application area source relatively low powered wearable electronic sensors devices via textile or fibrous TENGs. Therefore, this review focuses on advances prepared electrospinning from combinations terms design, function, obtain next generation nanofiber-based devices. remarkable physical chemical characteristics a wide range electrospun nanostructured achieving optimised discussed. Recent developments flexible electronics, self-powered also discussed detail.

Language: Английский

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Self-Healing and Elastic Triboelectric Nanogenerators for Muscle Motion Monitoring and Photothermal Treatment

ACS Nano, Journal Year: 2021, Volume and Issue: 15(9), P. 14653 - 14661

Published: Sept. 15, 2021

Owing to wearing and unpredictable damage, the working lifetime of triboelectric nanogenerators (TENGs) is largely limited. In this work, we prepared a single-electrode multifunctional TENG (MF-TENG) that exhibits fast self-healing, human health monitoring capability, photothermal properties. The device consists thin self-healing poly(vinyl alcohol)-based hydrogel sandwiched between two silicone elastomer films. MF-TENG short-circuit current, transfer charge, open-circuit voltage 7.98 μA, 78.34 nC, 38.57 V, respectively. Furthermore, owing repairable networks dynamic imine bonds in charged layer borate ester electrodes, could recover its original state after mechanical damage within 10 min at room temperature. can be attached different joints for self-powered personal information. Additionally, under near-infrared laser irradiation provide therapy assisting recovery motion. It envisaged proposed applied fields wearable electronics health-monitoring devices.

Language: Английский

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Two‐dimensional MXenes: New frontier of wearable and flexible electronics

InfoMat, Journal Year: 2022, Volume and Issue: 4(4)

Published: Feb. 22, 2022

Abstract Wearable electronics offer incredible benefits in mobile healthcare monitoring, sensing, portable energy harvesting and storage, human‐machine interactions, etc., due to the evolution of rigid structure flexible stretchable devices. Lately, transition metal carbides nitrides (MXenes) are highly regarded as a group thriving two‐dimensional nanomaterials extraordinary building blocks for emerging platforms because their excellent electrical conductivity, enriched surface functionalities, large area. This article reviews most recent developments MXene‐enabled wearable electronics. Several electronic devices designed on nanometric scale highlighted by drawing attention widely developed nonstructural attributes, including 3D configured devices, textile planer substrates, bioinspired structures, printed materials. Furthermore, unique progress these nanodevices is representative applications healthcare, energy, electromagnetic interference (EMI) shielding, humanoid control machines. The prospects MXene key frontier next‐generation envisioned design challenges systems also discussed, followed proposed solutions. image

Language: Английский

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Ethylene chlorotrifluoroethylene/hydrogel-based liquid-solid triboelectric nanogenerator driven self-powered MXene-based sensor system for marine environmental monitoring

Nano Energy, Journal Year: 2022, Volume and Issue: 100, P. 107509 - 107509

Published: June 15, 2022

Language: Английский

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Self-Powered Monitoring of Ammonia Using an MXene/TiO₂/Cellulose Nanofiber Heterojunction-Based Sensor Driven by an Electrospun Triboelectric Nanogenerator

ACS Sensors, Journal Year: 2022, Volume and Issue: 7(1), P. 312 - 321

Published: Jan. 14, 2022

Real-time monitoring of harmful gases is great significance to identify the environmental hazards people's lives. However, this application scenario requiring low-power consumption, superior sensitivity, portability, and self-driven operation gas sensors remains a challenge. Herein, an electrospun triboelectric nanogenerator (TENG) synthesized using highly electronegative conducting MXene nanofibers (NFs) paired with biodegradable cellulose acetate NFs (CA-NFs) as layers, which supports sufficient power density (∼1361 mW/m2@2 MΩ) shows self-powered ability operate chemiresistive sensor fabricated in work. Further, by (C-NFs) substrate, new kind MXene/TiO2/C-NFs heterojunction-based sensory component developed for detection NH3. This exhibits excellent reproducibility, high selectivity, sensitivity toward NH3 (1–100 ppm) along fast response/recovery time (76 s/62 s) at room temperature. Finally, system comprising TENG-powered sensor, equivalent circuit, LED visualizer has been assembled successfully demonstrated fully device leakage detection. Thus, work pushes forward intelligent sensing network human motion energy, dispensing external battery dependence environment reduce possible health effects.

Language: Английский

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