Design of triboelectric nanogenerators featuring motion form conversion, motion rectification, and frequency multiplication for low-frequency ocean energy harvesting

Jiang, Wenyong; Chen, Chengjun; Wang, Congyu; Li, Jiawei; Zhao, Maomi; Xiang, Tengfei; Wang, Peng

doi:10.1039/d3ee02688d

Cited by 12 publications

(4 citation statements)

References 53 publications

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“…29 Therefore, the triboelectric materials and the distance between the stator and rotator (2 mm) were kept consistent throughout this study. The influence of rotary speed (93.75, 187.5, 281.25, 375, 468.75, and 562.5 rpm) and the number of interdigitated electrodes (3,4,6, and 8 units) on the output and antibacterial performance was studied in this work. Details regarding the structural characteristics of FR-TENG with different units of interdigitated electrodes are reported in Figure S1a.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

“…As a promising technology for converting small-scale mechanical motions into electrical energy, the newly developed triboelectric nanogenerators (TENGs) have received great attention due to their distinctive merits. − These unique merits, such as high power density, excellent portability, and low cost, make TENGs highly suitable for use as energy harvesters in outdoor environments. Consequently, the continuous development of TENGs has led to the emergence of self-powered systems .…”

Section: Introductionmentioning

confidence: 99%

“…These self-powered systems, such as self-powered sterilizers − and biosensors, , hold significant importance in various circumstances, including offshore environments. To facilitate the applications of self-powered systems, researchers have diligently explored the optimization of triboelectric materials, , the design of device structures, and the management of electrical circuits . However, research on TENG-based self-powered systems is still in its early stages.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Collaborative Optimization Design of Self-Powered Sterilizer with Highly Efficient Synergistic Antibacterial Effect

Li,

Zhou,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

Self Cite

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The development of self-powered sterilizers has garnered significant attention in the scientific and engineering fields. However, there remains an urgent need to improve their sterilization efficiency. In this study, we present a self-powered sterilizer with superior antibacterial capability by maximizing the utilization of breakdown discharge generated by a soft-contact freestanding rotary triboelectric nanogenerator (FR-TENG). To achieve this, a collaborative optimization strategy is proposed, encompassing the structural design of the FR-TENG, the implementation of double voltage rectification, and manipulation of the gaseous phase. Through a comprehensive analysis of antibacterial rates and microscopic images, the effectiveness of the self-powered sterilizer against various types of bacteria, including Gram-positive and Gram-negative species, as well as mixed bacteria in natural seawater, is demonstrated. Further investigations into bacterial morphologies and solution compositions reveal that the synergistic effect between electroporation and the generation of reactive oxygen/nitrogen species contributes to efficient sterilization. Additionally, controlled trials and molecular dynamics simulations are conducted to quantitatively elucidate the synergistic antibacterial effect between electroporation and reactive oxygen/nitrogen species. This study highlights the effectiveness of the collaborative optimization strategy in enhancing the sterilization efficiency of self-powered sterilizers while providing valuable insights into the synergistic antibacterial mechanisms of physical and chemical sterilization.

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Section: ■ Experimental Sectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Collaborative Optimization Design of Self-Powered Sterilizer with Highly Efficient Synergistic Antibacterial Effect

Li,

Zhou,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

Self Cite

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“…Han et al proposed a cylindrical wave-driven linkage mechanism triboelectric nanogenerator (WLM-TENG) with unidirectional rotation [ 37 ]; the WLM-TENG, driven by enormous buoyancy force, showed excellent output performance, and its peak power could reach 50 mW. Jiang et al presented a TENG based on a screw rod and ratchet design (SR-TENG) [ 38 ]. It enables the rotor to rotate in one direction for positive excitation energy collection and accumulation, and the frequency of electrical output was increased.…”

Section: Introductionmentioning

confidence: 99%

Wind-Wave Synergistic Triboelectric Nanogenerator: Performance Evaluation Test and Potential Applications in Offshore Areas

Pan,

Wu,

Zhou

et al. 2024

Micromachines

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Triboelectric nanogenerators (TENGs) can effectively collect low-frequency, disordered mechanical energy and are therefore widely studied in the field of ocean energy collection. Most of the rotary TENGs studied so far tend to have insufficient rotation, resulting in slow charge transfer rates in low-frequency ocean environments. For this reason, in this paper, we propose a wind-wave synergistic triboelectric nanogenerator (WWS-TENG). It is different from the traditional rotary TENGs based on free-standing mode in that its power generation unit has two types of rotors, and the two rotors rotate in opposite directions under the action of wind energy and wave energy, respectively. This type of exercise can more effectively collect energy. The WWS-TENG has demonstrated excellent performance in sea wind and wave energy harvesting. In the simulated ocean environment, the peak power can reach 13.5 mW under simulated wind-wave superposition excitation; the output of the WWS-TENG increased by 49% compared to single-wave power generation. The WWS-TENG proposal provides a novel means of developing marine renewable energy, and it also demonstrates broad application potential in the field of the self-powered marine Internet of Things (IoT).

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Scavenging Energy and Information through Dynamically Regulating the Electrical Double Layer

Li,

Wang,

Wei

2024

Adv Funct Materials

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The electrical double layer (EDL) between solids and liquids serves as the primary interface for ionic‐electronic coupling and is pivotal in nanoscale phenomena, governing electric field effects, ion transport, surface interactions, etc. Dynamically regulating the EDL through mechanical or electrostatic methods can influence charge carrier behavior, thereby impacting energy scavenging and storage processes. This regulation enabled efficient energy scavenging by governing ionic migration and optimizing charge carrier concentration at the interface, presenting a novel avenue to achieve efficient energy and information flow. Here, various scavenging energy and information devices through dynamically regulating the EDL are systematically reviewed. They are classified into three groups by regulating the distribution and movement of charge carriers throughout the entire EDL, diffuse layer, and Debye length range. The review provided a comprehensive overview of the operating principles, influencing factors, output characteristics, and typical applications, along with a discussion on future challenges. This holistic examination offers researchers valuable insights for evaluating their applicability in various scenarios.

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Design of triboelectric nanogenerators featuring motion form conversion, motion rectification, and frequency multiplication for low-frequency ocean energy harvesting

Abstract: Wave energy is characteristic of low frequency and reciprocal motion, but is difficult to harvest. Triboelectric nanogenerator (TENG) has proven potential for wave energy harvesting and conversion. How to improve...

Cited by 12 publications

References 53 publications

Collaborative Optimization Design of Self-Powered Sterilizer with Highly Efficient Synergistic Antibacterial Effect

Collaborative Optimization Design of Self-Powered Sterilizer with Highly Efficient Synergistic Antibacterial Effect

Wind-Wave Synergistic Triboelectric Nanogenerator: Performance Evaluation Test and Potential Applications in Offshore Areas

Scavenging Energy and Information through Dynamically Regulating the Electrical Double Layer

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