Flexible and Waterproof 2D/1D/0D Construction of MXene-Based Nanocomposites for Electromagnetic Wave Absorption, EMI Shielding, and Photothermal Conversion

Nano-Micro Letters, Journal Year: 2021, Volume and Issue: 13(1)

Published: June 25, 2021

High-performance electromagnetic wave absorption and interference (EMI) shielding materials with multifunctional characters have attracted extensive scientific technological interest, but they remain a huge challenge. Here, we reported an electrostatic assembly approach for fabricating 2D/1D/0D construction of Ti3C2Tx/carbon nanotubes/Co nanoparticles (Ti3C2Tx/CNTs/Co) nanocomposites excellent absorption, EMI efficiency, flexibility, hydrophobicity, photothermal conversion performance. As expected, strong reflection loss -85.8 dB ultrathin thickness 1.4 mm were achieved. Meanwhile, the high efficiency reached 110.1 dB. The performances originated from charge carriers, electric/magnetic dipole polarization, interfacial natural resonance, multiple internal reflections. Moreover, thin layer polydimethylsiloxane rendered hydrophilic hierarchical Ti3C2Tx/CNTs/Co hydrophobic, which can prevent degradation/oxidation MXene in humidity condition. Interestingly, film exhibited remarkable performance thermal cycle stability tenability. Thus, possessing unique blend outstanding shielding, light-driven heating performance, flexible water-resistant features highly promising next-generation intelligent attenuation system.

Language: Английский

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Ti₃C₂T_x MXene-Based Flexible Piezoresistive Physical Sensors

ACS Nano, Journal Year: 2022, Volume and Issue: 16(2), P. 1734 - 1758

Published: Feb. 11, 2022

MXenes have received increasing attention due to their two-dimensional layered structure, high conductivity, hydrophilicity, and large specific surface area. Because of these distinctive advantages, are considered as very competitive pressure-sensitive materials in applications flexible piezoresistive sensors. This work reviews the preparation methods, basic properties, assembly methods recent developments sensor applications. The MXene-based sensors can be categorized into one-dimensional fibrous, planar, three-dimensional according various structures. trends multifunctional integration pressure also summarized. Finally, we end this review by describing opportunities challenges for great prospects field

Language: Английский

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High‐Performance Flexible Pressure Sensor with a Self‐Healing Function for Tactile Feedback

Advanced Science, Journal Year: 2022, Volume and Issue: 9(20)

Published: April 15, 2022

High-performance flexible pressure sensors have attracted a great deal of attention, owing to its potential applications such as human activity monitoring, man-machine interaction, and robotics. However, most high-performance are complex costly manufacture. These cannot be repaired after external mechanical damage lack tactile feedback applications. Herein, sensor based on MXene/polyurethane (PU)/interdigital electrodes is fabricated by using low-cost universal spray method. The sprayed MXene the spinosum structure PU other arbitrary substrates (represented polyimide membrane filter) act sensitive layer interdigital electrodes, respectively. shows an ultrahigh sensitivity (up 509.8 kPa-1 ), extremely fast response speed (67.3 ms), recovery (44.8 good stability (10 000 cycles) due interaction between electrodes. In addition, hydrogen bond endows device with self-healing function. can also integrated circuit, which realize This MXene-based sensor, along designing/fabrication, expected widely used in detection, electronic skin, intelligent robots, many aspects.

Language: Английский

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In situ polymerized polyaniline/MXene (V2C) as building blocks of supercapacitor and ammonia sensor self-powered by electromagnetic-triboelectric hybrid generator

Nano Energy, Journal Year: 2021, Volume and Issue: 88, P. 106242 - 106242

Published: June 18, 2021

Language: Английский

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Advances in High‐Performance Autonomous Energy and Self‐Powered Sensing Textiles with Novel 3D Fabric Structures

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(21)

Published: Jan. 27, 2022

The seamless integration of emerging triboelectric nanogenerator (TENG) technology with traditional wearable textile materials has given birth to the next-generation smart textiles, i.e., TENGs, which will play a vital role in era Internet Things and artificial intelligences. However, low output power inferior sensing ability have largely limited development TENGs. Among various approaches improve performance, such as material modification, structural design, environmental management, 3D fabric scheme is facile, efficient, controllable, scalable strategy increase effective contact area for electrification TENGs without cumbersome processing service restrictions. Herein, recent advances current reported structures are comprehensively summarized systematically analyzed order clarify their superiorities over 1D fiber 2D terms pressure sensing. forward-looking abilities fabrics also discussed at end. It believed that overview analysis distinctive contribute realization high-power micro/nanowearable sources high-quality self-powered sensors.

Language: Английский

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Bio‐Inspired Hybrid Dielectric for Capacitive and Triboelectric Tactile Sensors with High Sensitivity and Ultrawide Linearity Range

Advanced Materials, Journal Year: 2021, Volume and Issue: 33(27)

Published: June 1, 2021

Abstract The trade‐off between sensitivity and linearity is critical for preserving the high pressure‐resolution over a broad range simplifying signal processing/conversion of flexible tactile sensors. Conventional dielectrics suffer from difficulty quantitatively controlling interacted mechanical dielectric properties, thus causing restricted capacitive Herein, inspired by human skin, novel hybrid composed low‐permittivity (low‐ k ) micro‐cilia array, high‐permittivity (high‐ rough surface, micro‐dome array developed. pressure‐induced series‐parallel conversion low‐ high‐ components enables linear effective constant controllable initial/resultant capacitance. gradient compressibility behavior elastic modulus with pressures, which derives capacitance variation determined constant. Therefore, an ultrawide up to 1000 kPa 0.314 –1 are simultaneously achieved optimized dielectric. design also applicable triboelectric sensors, realizes similar output voltage enhanced sensitivity. With across range, potential applications such as healthcare monitoring in diverse scenarios control command via single sensor demonstrated.

Language: Английский

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Human body IoT systems based on the triboelectrification effect: energy harvesting, sensing, interfacing and communication

Energy & Environmental Science, Journal Year: 2022, Volume and Issue: 15(9), P. 3688 - 3721

Published: Jan. 1, 2022

Human body IoT systems based on the triboelectrification effect for energy harvesting, sensing, and interaction via wireless communication.

Language: Английский

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Significance of Flexible Substrates for Wearable and Implantable Devices: Recent Advances and Perspectives

Advanced Materials Technologies, Journal Year: 2021, Volume and Issue: 7(3)

Published: Nov. 2, 2021

Abstract In the past decade, flexible electronics have attracted significant research attention due to their distinct features and emerging applications in numerous fields such as, displays, implantable sensors, energy storage systems, among other applications. Due development of electronics, this paper details substrates employed produce electronic devices, given that generally govern overall device properties. The increase can be attributed use films as substrates, which enable implementation design strategies engineering methodologies, thus leading extensive advances manufacturing quality prospect various This provides a comprehensive review significance wearable over substrate properties requirements, processing classification, important applications, including sensing, storage, devices.

Language: Английский

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Shark Tooth-Inspired Microneedle Dressing for Intelligent Wound Management

ACS Nano, Journal Year: 2021, Volume and Issue: 15(9), P. 15316 - 15327

Published: Sept. 17, 2021

Intelligent management beyond therapeutic drug treating holds significant prospects in facilitating the recovery of intractable chronic wounds. Here, inspired by flat and inclined structure shark teeth, we present a tooth-inspired microneedle patch for intelligent wound management. By simply replicating negative molds fabricated laser engraving using origami, such biomimetic can be easily rapidly. The structures endow with stable adhesion during long-term process Porous ordered temperature-responsive hydrogel are utilized to construct controllable release system on patch. microfluidic channel composed arrays porous enables capacity analyze several inflammatory factors. In addition, MXene electronics was patterned order achieve sensitive motion monitoring. Also, it demonstrated from invivo diabetic rat experiments that full-thickness cutaneous wounds including stripe-shaped circular facilitated employing drug-loaded

Language: Английский

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Skin-inspired flexible and high-performance MXene@polydimethylsiloxane piezoresistive pressure sensor for human motion detection

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 617, P. 478 - 488

Published: March 7, 2022

Language: Английский

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