Self-powered gas sensor based on triboelectric nanogenerators (TENG): a comparative review of sensing mechanisms

Micro and Nano Systems Letters, Journal Year: 2025, Volume and Issue: 13(1)

Published: March 1, 2025

Abstract With the advancements of industrialization and Internet Things (IoT), demand for gas sensing technologies has grown significantly. However, conventional sensors, which rely on external power supplies, face limitations in lifespan, capacity, replacement convenience. As a result, interest self-powered solutions grown, with triboelectric nanogenerators (TENGs) emerging as promising alternative. TENG-based sensors utilize triboelectricity, enabling detection without power. Notably, TENGs offer unique advantage integrating energy harvesting into single device. This review categorizes mechanisms two main types introduces each mechanism detail. Through case studies, it provides comprehensive understanding these sensors. Additionally, aims to analyze challenges faced by new insights research strategies, ultimately contributing advancement this technology.

Language: Английский

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A Flexible and Stretchable Triboelectric Nanogenerator with Agarose/P(HEA‐co‐AA)‐Al/NaCl Electrodes for Bio‐Mechanical Energy Harvesting and Fall Detection

ChemistryOpen, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Recent advancements in wearable electronics for fall detection have shown significant potential, yet challenges remain developing reliable, energy-efficient systems capable of continuous monitoring real-world conditions. In this work, a double-network (DN) conductive hydrogel, comprising NaCl-coordinated agarose and poly (2-hydroxyethyl acrylate-co-acrylic acid) (Agarose/P(HEA-co-AA)-Al/NaCl) (APA-hydrogel), was synthesized. The forms stable first network, while the second network is established by P(HEA-co-AA) through aluminum ion coordination. Immersion NaCl solution leads to formation hydrated sodium ions ([Na(H2O)n]+), which are anchored within hydrogel matrix via hydrogen bonding metal resulting APA-hydrogel applied as triboelectric nanogenerator (APA-TENG), demonstrating excellent performance with an open-circuit voltage 900 V, short-circuit current 73.42 μA, peak power output 3.52 mW at 3 MΩ load. APA-TENG shows strong potential energy harvesting powering low-power devices, well real-time sensing motion detection, making it highly suitable assistive technologies powered human activity.

Language: Английский

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Self‐Powered Fire Safety Indicator Based on Fabric‐Based Triboelectric Nanogenerator

Energy Technology, Journal Year: 2025, Volume and Issue: unknown

Published: March 30, 2025

Fire‐retardant materials‐based triboelectric nanogenerators (F‐TENG) are gaining significant interest for their dual roles in energy harvesting and self‐powered sensing, especially suited areas with limited electricity access or during fire emergencies. Despite this, there has been exploration of F‐TENGs, such as the availability new retardant materials fire‐related scenarios, where multifunctional adaptable devices increasingly demand. This study first introduces a flame‐retardant material based on white glue baking soda coated upon cotton cloth further, it is used an effective F‐TENG operating single‐electrode mode. The treated fabric obtained by simple coating drying techniques, which illustrates that fabrics demonstrate excellent self‐extinguishing properties. achieves maximum peak power 61 μW at tapping frequency 2 Hz. output TENG maintains 80% its original electrical voltage (60–47 V) after burning 6 times. subsequently utilized to create sensor indication, enhancing rescue evacuation efforts. invention expands application technology preventing building fires, could lead creation urban ecosystems improvements smart structures.

Language: Английский

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Highly Adaptive and Sustainable Oil Purification Driven by Triboelectric Nanogenerator

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

Published: April 1, 2025

Abstract Oil contamination poses a critical challenge in mechanical systems, leading to significant degradation oil performance, and adversely affecting machinery operation longevity. This study introduces an innovative electrostatic purification method based on freestanding rotary triboelectric nanogenerator (FR‐TENG). By harnessing ambient energy, the FR‐TENG generates high‐voltage electric field, which induces forces solid contaminants, causing them migrate adhere dust collector. Multi‐physics simulations are utilized investigate dynamics explore underlying mechanisms, providing comprehensive understanding of process. Experiments further confirm that this is highly effective removing particles from with high moisture content while dehydrating oil. Compared traditional methods, require levels below 1000 ppm, maintains efficiency even containing up 10% content, extending permissible limit by nearly 100‐fold. These findings highlight potential adaptive sustainable technique for purification, allowing simultaneous efficient particle dehydration scenarios contamination. Thus paving way broader applications TENG technology industrial treatment.

Language: Английский

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Beyond Traditional Energy Harvesting: Magneto-Mechano-Electric Technology for Sustainable Powering and Sensing

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 2, 2025

Language: Английский

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Anatase Versus Rutile: Optimizing TiO₂‐Based Triboelectric Nanogenerators for Clean Energy Harvesting

Advanced Sustainable Systems, Journal Year: 2025, Volume and Issue: unknown

Published: May 3, 2025

Abstract Triboelectric nanogenerators (TENGs) have emerged as a promising alternative technology for sustainable energy harvesting, which is aligning with Sustainable Development Goal 7 (SDG 7). Strategies such optimizing material selection, modifying surface morphology, and engineering interfacial structures been explored to enhance TENG performance. However, the role of semiconductor metal oxides in applications remains relatively underexplored. In this manuscript, titanium dioxide (TiO₂), particularly its rutile anatase phases, improving output performance TENGs investigated. The fabricated TiO₂‐based are systematically analyzed, revealing that rutile‐phase TiO₂ demonstrated superior compared anatase, 1.25‐fold increase voltage 1.16‐fold current. This enhancement attributed rutile's higher dielectric constant, improved charge mobility, optimized morphology. achieved impressive metrics, including 500 V, current 140 µA, power density 8.16 W m − 2 , making it highly suitable self‐powered applications. present findings underscore viability scalable efficient solution, paving way

Language: Английский

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Ultrahigh Charge Density of Cellulose-Based Triboelectric Materials Based on Built-in Electric Field and Deep Trap Synergy

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: May 12, 2025

Cellulose-based triboelectric nanogenerators (TENGs) are increasingly studied as potential candidates for advancing sustainable wearable electronics due to their biodegradability, self-powering capability, and high sensitivity. However, the near-electroneutrality of cellulose its lack efficient charge storage sites result in rapid dissipation. This study's synergistic approach constructing deep traps built-in electric fields effectively promotes trapping. achieved nearly 2 orders magnitude improvement deep-trap density modified a 74% reduction dissipation rate, compared with cellulose, yielding 332 μC/m2, comparable output produced by ion injection. The integrated TENG demonstrates reliable high-sensitivity signal transmission electronic device. study presents simple scalable strategy fabricating high-performance cellulose-based TENGs, underscoring significant self-powered electronics.

Language: Английский

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Advances in tribonegative layer for 2D material-based triboelectric nanogenerators: Material modifications and architectural designs

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 163854 - 163854

Published: May 1, 2025

Language: Английский

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A high output triboelectric nanogenerator based on 2D boron nitride nanosheet–PVP composite ink and electrospun cellulose acetate nanofibers for kinetic energy harvesting and self-powered tactile sensing applications

Sustainable Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The development of intelligent systems integrated with high-sensitivity sensors is critical for next-generation electronic applications.

Language: Английский

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