Boosting the output performance of triboelectric nanogenerators <i>via</i> surface engineering and structure designing

Wu, Lingang; Xue, Pan; Fang, Shize; Gao, Meng; Yan, Xiaojie; Jiang, Hong; Liu, Yang; Wang, Huihui; Liu, Hongbin; Cheng, Bowen

doi:10.1039/d3mh00614j

Cited by 20 publications

(4 citation statements)

References 208 publications

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“…[ 24–26 ] However, it's worth noting that microstructure design often involves techniques such as electron beam lithography or ion beam etching systems, and electrospinning, which can be costly, complex, and limited effect. [ 27–29 ] This can potentially affect the feasibility of widespread, high‐efficiency TENG applications. Therefore, in the continued development of TENG technology, ongoing research and optimization of materials and microstructures are essential to overcome these challenges and improve its performance and sustainability.…”

Section: Introductionmentioning

confidence: 99%

Auxetic Structure‐Assisted Triboelectric Nanogenerators for Efficient Energy Collection and Wearable Sensing

Yue,

Wang,

Zhou

et al. 2024

Advanced Energy Materials

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Triboelectric nanogenerators (TENGs) are recognized for energy conversion efficiency and applications including electronics and energy storage devices. This study introduces a groundbreaking development in TENG by incorporating negative Poisson's ratio metamaterials to fabricate auxetic‐assisted triboelectric nanogenerators (Auxetic‐TENG), subversively overcoming the low power density of traditional materials. Subtly, an integrated layer‐by‐layer‐assembly and core–shell accumulation strategy is employed to create a synclastic polytetrafluoroethylene negative friction shell‐skeleton, into which positive Poisson's ratio nature collagen aggregate (CA) foam is inwardly embedded as the positive friction core‐material. Surprisingly, the on‐demand introduction of metamaterials in synergy with CA significantly increases the contact area and mechanical energy absorption of the Auxetic‐TENG under pressure. This enhancement in the conversion efficiency of mechanical to electricity capitalizes on the contraction origins of negative Poisson's ratio metamaterials, integrated with the expansion characteristics of the positive Poisson's ratio materials within the structure, facilitating the synergistic compression of the positive and negative friction stratum. Consequently, Auxetic‐TENG achieves an open‐circuit voltage of 85 V, an overturning four times compared to conventional contact–separation TENG, and a power density of 4.2 W m−2. Application experiments demonstrate the superior performance of auxetic‐TENG under various compression ratios and stress conditions, highlighting its potential for real‐time monitoring in healthcare applications.

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Section: Introductionmentioning

confidence: 99%

Auxetic Structure‐Assisted Triboelectric Nanogenerators for Efficient Energy Collection and Wearable Sensing

Yue,

Wang,

Zhou

et al. 2024

Advanced Energy Materials

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“…Therefore, providing the surface of any substrate with specific functionalities (even more than one at the same time) makes the material suitable for applications that would have never been envisaged without that particular surface treatment. Additionally, these newly conferred characteristics do not modify the overall bulk properties of the treated substrate, hence (i) avoiding the use of high amounts of additives/modifiers/fillers that are usually diluted in the material's bulk (thus providing a limited effect), (ii) determining a negligible impact on those properties that do not require any modification, and, finally, (iii) focusing on the most critical area, i.e., the material's surface [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Nanostructured Flame-Retardant Layer-by-Layer Architectures for Cotton Fabrics: The Current State of the Art and Perspectives

Malucelli

2024

Nanomaterials

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Nowadays, nanotechnology represents a well-established approach, suitable for designing, producing, and applying materials to a broad range of advanced sectors. In this context, the use of well-suited “nano” approaches accounted for a big step forward in conferring optimized flame-retardant features to such a cellulosic textile material as cotton, considering its high ease of flammability, yearly production, and extended use. Being a surface-localized phenomenon, the flammability of cotton can be quite simply and effectively controlled by tailoring its surface through the deposition of nano-objects, capable of slowing down the heat and mass transfer from and to the textile surroundings, which accounts for flame fueling and possibly interacting with the propagating radicals in the gas phase. In this context, the layer-by-layer (LbL) approach has definitively demonstrated its reliability and effectiveness in providing cotton with enhanced flame-retardant features, through the formation of fully inorganic or hybrid organic/inorganic nanostructured assemblies on the fabric surface. Therefore, the present work aims to summarize the current state of the art related to the use of nanostructured LbL architectures for cotton flame retardancy, offering an overview of the latest research outcomes that often highlight the multifunctional character of the deposited assemblies and discussing the current limitations and some perspectives.

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“…Features such as roughness, nanostructures, and surface patterning can enhance contact electrification and improve TENG performance. 28,29 The interfacial properties between the embedded material and substrate or other triboelectric layers are crucial for promoting effective charge transfer and minimizing charge leakage. To obtain a polymer matrix with high surface roughness and high surface-to-volume ratio, electrospinning is highly attractive.…”

Section: Introductionmentioning

confidence: 99%

Triboelectric nanogenerator based on electrospun molecular ferroelectric composite nanofibers for energy harvesting

Deswal,

Arab,

et al. 2024

RSC Appl. Polym.

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Boosting the output performance of triboelectric nanogenerators via surface engineering and structure designing

Abstract: Various surface morphologies and structures in triboelectric nanogenerators with the resulting boosted output performance are reviewed comprehensively.

Cited by 20 publications

References 208 publications

Auxetic Structure‐Assisted Triboelectric Nanogenerators for Efficient Energy Collection and Wearable Sensing

Auxetic Structure‐Assisted Triboelectric Nanogenerators for Efficient Energy Collection and Wearable Sensing

Nanostructured Flame-Retardant Layer-by-Layer Architectures for Cotton Fabrics: The Current State of the Art and Perspectives

Triboelectric nanogenerator based on electrospun molecular ferroelectric composite nanofibers for energy harvesting

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