Anaconda-shaped spiral multi-layered triboelectric nanogenerators with ultra-high space efficiency for wave energy harvesting

One Earth, Год журнала: 2022, Номер 5(9), С. 1055 - 1063

Опубликована: Сен. 1, 2022

Язык: Английский

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Nanogenerators‐Based Self‐Powered Sensors

Advanced Materials Technologies, Год журнала: 2022, Номер 7(12)

Опубликована: Апрель 30, 2022

Abstract With the rapid technological development, self‐powered sensor systems that are capable of operating without an external power supply becoming more and crucial in field sensing detection. One major drawbacks a typical is necessity or batteries, which makes complex less handy for mobile devices. In last decade's improvement triboelectric, piezoelectric, pyroelectric, thermoelectric nanogenerators their performance electrical output mechanical stability, it becomes widely used self‐power healthcare, environmental applications. Here this review, various types working principles first discussed, analyzed, then recent progress application systems, including biomedical wearable devices, physical applications, robotics, monitoring, smart cities, highlighted. Except practical sensors, future outlook prognosticated.

Язык: Английский

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A Capsule-Shaped Triboelectric Nanogenerator for Self-Powered Health Monitoring of Traffic Facilities

ACS Materials Letters, Год журнала: 2022, Номер 4(9), С. 1630 - 1637

Опубликована: Авг. 1, 2022

Structure health monitoring is very essential for the safe operation of traffic facilities, like bridges and railways. However, establishing real-time early event detection with a simple sensor device that does not require an external power supply remains crucial challenge. Here, self-powered based on capsule-shaped triboelectric nanogenerator (CS-TENG) cavity structure constructed to monitor structural traffic. With open-circuit voltage 30.3 V high sensitivity distance (precise 1 mm) pressure (0.86 V/kPa), CS-TENG manifests superb performance long service life. A bridge system turnout are proposed CS-TENG, practicability in application above also investigated spot. Benefiting from characteristic negligible changes forces can be detected, state facilities may recognized real-time. Then, results displayed alert personnel issues other road infrastructure, revealing its potential smart facilities.

Язык: Английский

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Polypyrrole@CNT@PU Conductive Sponge-Based Triboelectric Nanogenerators for Human Motion Monitoring and Self-Powered Ammonia Sensing

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(47), С. 54986 - 54995

Опубликована: Ноя. 15, 2023

Elastic sponges are ideal materials for triboelectric nanogenerators (TENGs) to harvest irregular and random mechanical energy from the environment. However, conductive design of elastic in TENGs often limits its applications. In this work, we have demonstrated that an sponge can be used as layer electrode TENGs. Such is prepared by a simple way adsorbing multiwalled carbon nanotubes monomers pyrrole grow polypyrroles on surface polyurethane (PU) sponge. Due porous structure PU (MWCNTs), PPy could provide large contact area improve output performance TENGs, sponge-based TENG generate open-circuit voltage 110 V or short-circuit current 12 μA, respectively. The good flexibility makes kinetic disordered motion with different amplitudes, allowing human monitoring. Furthermore, synergistic effects MWCNTs enable sense NH3 self-powered sensor. This work offers construct flexible system harvesting, monitoring, sensing.

Язык: Английский

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Advanced designs for electrochemically storing energy from triboelectric nanogenerators

Matter, Год журнала: 2023, Номер 6(7), С. 2153 - 2181

Опубликована: Июль 1, 2023

Язык: Английский

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