The operation cost of an intelligent high-speed train system is greatly increased by the enormous energy demand large-scale signal and sensor networks. However, wind generated trains completely neglected. Herein, a wind-energy-harvesting device, which based on elastic rotation triboelectric nanogenerator (ER-TENG), fabricated to harvest moving power relevant sensing devices. Due significant decrease in friction force resulting from reasonable material selection structure design,...

The liquid-solid triboelectric nanogenerator (LS-TENG) has been demonstrated to harvest energy efficiently through the contact electrification effect between liquid and solid materials, which can avoid wear issue in solid-solid TENG. However, droplet-based LS-TENG reveals problems that it generally works with continuous falling droplets or needs be fully packaged, greatly limit its practical application. Here, a (DB-TENG) simple open structure is designed effectively solve these problems....

The triboelectric nanogenerator shows a broad application potential in wind energy collection and speed sensing. However, it is difficult to realize real-time monitoring one simple device without external power support. Here, high-performance dual-mode proposed simultaneously collect efficiently monitor real time, which composed by an alternating current (AC-TENG) direct-current (DC-TENG). Based on the material optimization, charge density of AC-TENG improves factor 1 compared with previous...

Vibration sensor is very necessary for monitoring the structural health of constructions. However, it still a major challenge to meet simultaneously real-time monitoring, continuous assessment, and early incident warning in simple device without complicated power analysis system. Here, we report self-powered vibration system achieve detection characteristics from dual-mode triboelectric nanogenerator (AC/DC-TENG), which can produce either alternating current (AC) or direct (DC) within...

Abstract Triboelectric nanogenerators (TENGs) have been introduced as a new cost‐effective technology for harvesting renewable wave energy their unmatchable performance in low frequency (<5 Hz). Here, bifilar‐pendulum‐assisted multilayer‐structured triboelectric nanogenerator (BM‐TENG) modules incorporated into vessel are reported, which high output and adaptive capacity actual marine environment. Compared with previous research work on collection by TENG, the designed BM‐TENG, is...

A universal method for triboelectric nanogenerator is provided to obtain a constant-voltage output rather than pulse-voltage output, simultaneously solving the key problems of high crest factor, low average power, and energy-output inefficiency.

Abstract The ocean, as one of the most important areas for human production and living, plays a vital role in transportation, food production, energy supply. However, it is greatly desired to develop relevant advanced technologies achieve efficient safe ocean exploitation utilization. triboelectric nanogenerator (TENG), which can transform mechanical motion into electric harvesting related obtain corresponding characteristics by electronic signal, significant choice marine exploitation....

Abstract Water wave energy is a vital renewable‐energy resource, but it less developed due to the characteristics of water with low and varying frequency. Herein, bifilar‐pendulum coupled hybrid nanogenerator (BCHNG) module, which includes an electromagnetic generator (EMG), two piezoelectric nanogenerators (PENGs), multilayer‐structured triboelectric (TENGs), incorporated into vessel‐like platform for harvesting. The combination lightweight TENG heavy PENG EMG can not only increase ability...

A self-powered system composed of an electrochemical recycling reactor and a triboelectric nanogenerator is proposed for spent lithium-ion battery with the advantages high purity, self-powering, simplified procedure, profit.

Due to the simple installation and convenient maintenance, floating water wave energy harvesting devices have significant economic advantages. Mass power density is most important index evaluate advancement of devices. Herein, a self-adaptive rotating triboelectric nanogenerator (SR-TENG) with compound pendulum functional gear-set provided for harvesting. First, structure low center gravity high moment inertia obtained by geometric design mechanical study. Besides, compared previous one-way...

Flexible and wearable sensors have a crucial impact on the development of intelligent information technology. However, current commercial cannot meet relevant performance requirements. Herein, based electrospinning process, extra polarization, triboelectric nanogenerator technologies, we propose high-performance flexible sensor (HFWS) with self-powered breathable function, which is constructed by polarized polyvinylidene fluoride-barium titanate (PVDF-BTO) electrospun film Ni fabric...

6G communication mainly occurs in the THz band (0.1–10 THz), which can achieve excellent performance. Self-powered modulators are essential for achieving better conduction, modulation, and manipulation of waves. Herein, a self-powered terahertz modulator, is based on metamaterials, liquid crystals (LCs), rotary triboelectric nanogenerators (R-TENGs), proposed to realize driving different array elements. The corresponding designs an integrated design preparation method dynamic...

An ocean wave contains various marine information, but it is generally difficult to obtain the high-precision quantification meet needs of development and utilization. Here, we report a self-powered high-performance triboelectric ocean-wave spectrum sensor (TOSS) fabricated using tubular nanogenerator (TENG) hollow ball buoy, which not only can adapt measurement surface water waves in any direction also eliminate influence seawater on performance sensor. Based high-sensitivity advantage...

Abstract The high‐output triboelectric nanogenerator (TENG) is indispensable for its practical applications toward industrial products. However, the electricity loss in simple parallel connection among all units and typically high crest factor output seriously hamper of TENG. Here, a rectified TENG reported structure to solve problem connection. rotational contact–separation with phase difference between TENGs addresses extends service life simultaneously. current dramatically decreased 1.31...

Abstract Motion vector sensors play an important role in artificial intelligence and internet of things. Here, a triboelectric sensor (TVS) based on direct‐current nanogenerator is reported, for self‐powered measuring various motion parameters, including displacement, velocity, acceleration, angular, angular velocity. Based the working mechanism contact‐electrification effect electrostatic breakdown, continuous DC signal can be collected to directly monitor moving objects free from...

Dielectric material selection coupled with surface-charge engineering is demonstrated to effectively improve the output performance of triboelectric nanogenerators in a high humidity environment.

Water splitting for yielding high-purity hydrogen represents the ultimate choice to reduce carbon dioxide emission owing superior energy density and zero-pollution after combustion. However, high electricity consumption requirement of large quantities pure water impede its large-scale application. Here, a triboelectric nanogenerator (W-TENG) converting offshore wind into is proposed commercial electric saving cost reduction. By introducing PTFE/POM dielectric pairs with matched HOMO/LUMO...

The liquid-solid triboelectric nanogenerator is broadly studied for its self-powered sensing and blue energy harvesting, thanks to low wear highly efficient contact. However, the corresponding research studies focusing on deionized-water nanogenerators (DL-TENGs) seawater-type TENGs (SL-TENGs) are rarely being carried out at present. Here, a SL-TENG fabricated by applying dielectric film as organic coating coated uncoated steel hull two electrodes. Based reasonable material selection of...

Triboelectric nanogenerators (TENGs) have attracted great attention in the distributed power sources field due to their ability convert environment mechanical energy into electrical energy. However, density, durability, and humidity resistance of TENGs remain be improved for large-scale application. Here, a noncontact constant-voltage triboelectric nanogenerator via charge excitation (ECV-TENG) is proposed enhance output performance, which first applies an adaptive-contact TENG as pump...