Constructing highly flexible dielectric sponge for enhancing triboelectric performance

Yin, Lu; Qin, Qinghao; Meng, Jiajing; Mi, Yajun; Wang, Xueqing; Cao, Xia; Wang, Ning

doi:10.1016/j.cej.2023.143802

Cited by 11 publications

(5 citation statements)

References 37 publications

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“…Materials with better dielectric properties can enhance the electrostatic induction process. [41,42] The addition of high dielectric constant particles and the formation of microcapacitors in the triboelectric layer can enhance the dielectric constant of the composite layer, thereby, enhancing polarization and increasing the number of induced charges on the electrode. [43] Peng et al coated Ag nanoparticles with amorphous carbon to make the spatial electric field more uniform.…”

Section: Current Optimization Methods For Triboelectric Layersmentioning

confidence: 99%

Perspectives of Material Optimization Strategies for High‐Performance Triboelectric Nanogenerators

Ji,

Sun,

Sun

et al. 2024

Advanced Sustainable Systems

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Triboelectric nanogenerators (TENGs) have unique advantages in harvesting low‐frequency irregular mechanical energy, and their output mainly depends on the surface charge density. Inhibiting the loss of triboelectric charges and optimizing the dielectric properties of materials are effective methods for boosting the surface charge density. Several optimization strategies for triboelectric layers, such as surface modification, insertion of intermediate layers, and optimization of dielectric properties, have been reported to improve the output performance of TENGs. In this perspective, first, the material optimization strategies for improving the output performance of TENGs are discussed. Then, in terms of output enhancement, the problems that need to be solved in the future are proposed. Finally, the future roads of high‐performance TENGs for truly realizing efficient mechanical‐energy harvesting are discussed.

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Section: Current Optimization Methods For Triboelectric Layersmentioning

confidence: 99%

Perspectives of Material Optimization Strategies for High‐Performance Triboelectric Nanogenerators

Ji,

Sun,

Sun

et al. 2024

Advanced Sustainable Systems

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show abstract

“…Due to the frictional forces on the surfaces, the properties of the materials cause charge transfer when the surfaces separate or come into a connection, leading to the separation of charges and the development of a potential difference (Figure 2a). When an external circuit is connected to a load, current flows out [86]. By undergoing periodic contact and separation, this mode can generate a continuous current signal.…”

Section: Working Modes Of Tengsmentioning

confidence: 99%

Magnetic Material in Triboelectric Nanogenerators: A Review

Sun,

Zhu,

Rehman

et al. 2024

Nanomaterials

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Nowadays, magnetic materials are also drawing considerable attention in the development of innovative energy converters such as triboelectric nanogenerators (TENGs), where the introduction of magnetic materials at the triboelectric interface not only significantly enhances the energy harvesting efficiency but also promotes TENG entry into the era of intelligence and multifunction. In this review, we begin from the basic operating principle of TENGs and then summarize the recent progress in applications of magnetic materials in the design of TENG magnetic materials by categorizing them into soft ferrites and amorphous and nanocrystalline alloys. While highlighting key role of magnetic materials in and future opportunities for improving their performance in energy conversion, we also discuss the most promising choices available today and describe emerging approaches to create even better magnetic TENGs and TENG-based sensors as far as intelligence and multifunctionality are concerned. In addition, the paper also discusses the integration of magnetic TENGs as a power source for third-party sensors and briefly explains the self-powered applications in a wide range of related fields. Finally, the paper discusses the challenges and prospects of magnetic TENGs.

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“…They identified the significant influence of dielectric constant and porosity on the surface charge density and pore fraction of the dielectric in TENG design. As a result of their innovation, they achieved a 2.5-fold power enhancement in the TENG [77]. PTFE, ranking higher than PDMS in electronic attraction, offers significant potential for TENG development.…”

Section: Foam-based Polymer Dielectricsmentioning

confidence: 99%

Porous Polymer Materials in Triboelectric Nanogenerators: A Review

Mi,

Zhao,

et al. 2023

Polymers

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Since the invention of the triboelectric nanogenerator (TENG), porous polymer materials (PPMs), with different geometries and topologies, have been utilized to enhance the output performance and expand the functionality of TENGs. In this review, the basic characteristics and preparation methods of various PPMs are introduced, along with their applications in TENGs on the basis of their roles as electrodes, triboelectric surfaces, and structural materials. According to the pore size and dimensionality, various types of TENGs that are built with hydrogels, aerogels, foams, and fibrous media are classified and their advantages and disadvantages are analyzed. To deepen the understanding of the future development trend, their intelligent and multifunctional applications in human–machine interfaces, smart wearable devices, and self-powering sensors are introduced. Finally, the future directions and challenges of PPMs in TENGs are explored to provide possible guidance on PPMs in various TENG-based intelligent devices and systems.

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Constructing highly flexible dielectric sponge for enhancing triboelectric performance

Cited by 11 publications

References 37 publications

Perspectives of Material Optimization Strategies for High‐Performance Triboelectric Nanogenerators

Perspectives of Material Optimization Strategies for High‐Performance Triboelectric Nanogenerators

Magnetic Material in Triboelectric Nanogenerators: A Review

Porous Polymer Materials in Triboelectric Nanogenerators: A Review

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