Wearable, Biodegradable, and Antibacterial Multifunctional Ti3C2Tx MXene/Cellulose Paper for Electromagnetic Interference Shielding and Passive and Active Dual-Thermal Management

Yang, Jiaxin; Wang, Hong; Zhang, J; Liu, M.; Fu, Zhiwei; Zhang, Yifei; Guo, Qinglei; Yan, Lifeng; Cai, Rong; Qian, Kai

doi:10.1021/acsami.3c02569

Cited by 13 publications

(2 citation statements)

References 46 publications

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“…(a) EMI shielding model of WR-MXene coating film. Comparison of (b) EMI SE ,− and (c) switchable range. ,− …”

Section: Resultsmentioning

confidence: 99%

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Li,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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Modern miniaturized intelligent electronics call for smart switchable and flexible electromagnetic interference (EMI) shielding material for highly precise applications. However, most switchable EMI shielding materials are based on an explicit structural change. Herein, we report a succulent-inspired smart switchable MXene (WR-MXene) coating film realized by inner implicit structural change, which benefits from the insertion of our reversible large-cavity yolk−shell biomicrospheres. The novel switchable yolk−shell biomicrospheres contain a soft N-isopropylacrylamide (PNIPAM) hydrogel core, an "ON/OFF" switchable cavity (over 30% volume fraction), and a porous polydopamine (p-PDA) shell. The yolk−shell biomicrospheres can be obtained by a facile two-step polymerization and a simple drying-dehydration treatment. Because of the "ON/OFF" switchable void space brought by the smart biomicrospheres and conductive framework of MXene, an optimized ultralight and flexible WR-MXene coating film (vWR-coating film) showed both large switchable change (over 60 dB) and extraordinary EMI shielding effectiveness, reaching 95 and over 50 dB in the whole X band (8.2−12.4 GHz). These novel reversible yolk−shell biomicrospheres and the succulent-inspired switchable coating films are promising for smart flexible wearable devices and many advanced multifunctional systems needing dynamic real-time response.

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“…(a) EMI shielding model of WR-MXene coating film. Comparison of (b) EMI SE ,− and (c) switchable range. ,− …”

Section: Resultsmentioning

confidence: 99%

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Li,

Zhang

et al. 2024

ACS Appl. Mater. Interfaces

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“…Electronic textiles were constituted by MXene and AgNWs, showing self-powered pressure sensing, ultrafast joule heating, and highly efficient EMI shielding . A wearable MXene@cellulose hybrid film was also prepared, exhibiting high EMI SE value, passive solar radiative heating, and active Joule heating . The conversion of Joule/solar thermal energy was achieved by incorporating a phase-change material (PCM) into the MXene-based composites.…”

Section: Introductionmentioning

confidence: 99%

Carbonized Syndiotactic Polystyrene/Carbon Nanotube/MXene Hybrid Aerogels with Egg-Box Structure: A Platform for Electromagnetic Interference Shielding and Solar Thermal Energy Management

Gui,

Zhao,

Zuo

et al. 2023

ACS Appl. Mater. Interfaces

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Functional materials for electromagnetic interference (EMI) shielding are a consistently hot topic in the booming communication engineering, proceeding the development that tends to the multifunctional EMI shielding materials. Herein, a series of carbonized syndiotactic polystyrene/carbon nanotube/ MXene (CsPS/CNT/MXene) hybrid aerogels were fabricated for EMI shielding and solar thermal energy conversion purposes. To fabricate the hybrid aerogels, a porous CNT/MXene framework was initially prepared using freeze-casting. Subsequently, sPS was infused into the porous structure, followed by hyper-cross-linking and carbonization of sPS under an inert atmosphere. The resulting aerogels exhibited a distinctive egg-box structure, comprising numerous nanofibrous carbon microspheres embedded within the lamellar framework. The mass ratio between CNT and MXene was regulated to identify an optimum aerogel, that is, the CCM-4-6, which exhibited impressive properties including Young's compression modulus of 0.67 MPa, a water contact angle of 137.6 ± 4.1°, a specific surface area of 110 m 2 g −1 , an electrical conductivity of 43.0 S m −1 , and an EMI SE value of 40 dB. Meanwhile, phase-change composites were fabricated through encapsulating paraffin wax within the hybrid aerogels. For the CCM-4-6 aerogel, a noteworthy encapsulation ratio was achieved at about 76.7%, along with remarkable latent heat, good thermal reliability, and commendable solar thermal energy conversion capacity. This study presents a facile route to prepare multifunctional EMI shielding materials.

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Dielectric‐Based Metamaterials for Near‐Perfect Light Absorption

Wang,

Qin,

Duan

et al. 2024

Adv Funct Materials

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The emergence of metamaterials and their continued prosperity have built a powerful working platform for accurately manipulating the behavior of electromagnetic waves, providing sufficient possibility for the realization of metamaterial absorbers with outstanding performance. However, metamaterial absorbers composed of metallic materials typically possess many unfavorable factors, such as non‐adjustable absorption, easy oxidation, low‐melting, and expensive preparation costs. The selection of dielectric materials provides excellent alternatives due to their remarkable properties, thus dielectric‐based metamaterial absorbers (DBMAs) have attracted much attention. To promote breakthroughs in DBMAs and guide their future development, this work systematically and deeply reviews the recent research progress of DBMAs from four different but progressive aspects, including physical principles; classifications, material selections and tunable properties; preparation technologies; and functional applications. Five different types of theories and related physical mechanisms, such as Mie resonance, guided‐mode resonance, and Anapole resonance, are briefly outlined to explain DBMAs having near‐perfect absorption performance. Mainstream material selections, structure designs, and different types of tunable DBMAs are highlighted. Several widely utilized preparation methods for customizing DBMAs are given. Various practical applications of DBMAs in sensing, stealth technology, solar energy absorption, and electromagnetic interference suppression are reviewed. Finally, some key challenges and feasible solutions for DBMAs’ future development are provided.

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Wearable, Biodegradable, and Antibacterial Multifunctional Ti₃C₂T_x MXene/Cellulose Paper for Electromagnetic Interference Shielding and Passive and Active Dual-Thermal Management

Cited by 13 publications

References 46 publications

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Succulent-Inspired Implicit Structural Change for Smart “ON/OFF” Switchable and Flexible EMI Shielding Coating

Carbonized Syndiotactic Polystyrene/Carbon Nanotube/MXene Hybrid Aerogels with Egg-Box Structure: A Platform for Electromagnetic Interference Shielding and Solar Thermal Energy Management

Dielectric‐Based Metamaterials for Near‐Perfect Light Absorption

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