Lightweight Ti                         2                         CT                          x                          MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature

Hailong Xu; Xiaowei Yin; Xinliang Li; Minghang Li; Shuang Liang; Litong Zhang; Laifei Cheng

doi:10.1021/acsami.8b21671

Lightweight Ti ₂ CT _x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature

Hailong Xu, Xiaowei Yin, Xinliang Li, Minghang Li, Shuang Liang, Litong Zhang, Laifei Cheng

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

573 Scopus citations

Abstract

Lightweight absorption-dominated electromagnetic interference (EMI) shielding materials are more attractive than conventional reflection-dominated counterparts because they minimize the twice pollution of the reflected electromagnetic (EM) wave. Here, porous Ti ₂ CT _x MXene/poly(vinyl alcohol) composite foams constructed by few-layered Ti ₂ CT _x (f-Ti ₂ CT _x ) MXene and poly(vinyl alcohol) (PVA) are fabricated via a facile freeze-drying method. As superior EMI shielding materials, their calculated specific shielding effectiveness reaches up to 5136 dB cm ² g ^-1 with an ultralow filler content of only 0.15 vol % and reflection effectiveness (SE _R ) of less than 2 dB, representing the excellent absorption-dominated shielding performance. Contrast experiment reveals that the good impedance matching derived from the multiple porous structures, internal reflection, and polarization effect (dipole and interfacial polarization) plays a synergistic role in the improved absorption efficiency and superior EMI shielding performance. Consequently, this work provides a promising MXene-based EMI shielding candidate with lightweight and high strength features.

Original language	English
Pages (from-to)	10198-10207
Number of pages	10
Journal	ACS Applied Materials and Interfaces
Volume	11
Issue number	10
DOIs	https://doi.org/10.1021/acsami.8b21671
State	Published - 13 Mar 2019

Keywords

Ti CT MXene
electromagnetic wave absorption
electromagnetic wave shielding
polymer
ultralight foam

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10.1021/acsami.8b21671

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Xu, H., Yin, X., Li, X., Li, M., Liang, S., Zhang, L., & Cheng, L. (2019). Lightweight Ti ₂ CT _x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature ACS Applied Materials and Interfaces, 11(10), 10198-10207. https://doi.org/10.1021/acsami.8b21671

Xu, Hailong ; Yin, Xiaowei ; Li, Xinliang et al. / Lightweight Ti ₂ CT _x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature In: ACS Applied Materials and Interfaces. 2019 ; Vol. 11, No. 10. pp. 10198-10207.

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title = " Lightweight Ti 2 CT x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature ",

abstract = " Lightweight absorption-dominated electromagnetic interference (EMI) shielding materials are more attractive than conventional reflection-dominated counterparts because they minimize the twice pollution of the reflected electromagnetic (EM) wave. Here, porous Ti 2 CT x MXene/poly(vinyl alcohol) composite foams constructed by few-layered Ti 2 CT x (f-Ti 2 CT x ) MXene and poly(vinyl alcohol) (PVA) are fabricated via a facile freeze-drying method. As superior EMI shielding materials, their calculated specific shielding effectiveness reaches up to 5136 dB cm 2 g -1 with an ultralow filler content of only 0.15 vol % and reflection effectiveness (SE R ) of less than 2 dB, representing the excellent absorption-dominated shielding performance. Contrast experiment reveals that the good impedance matching derived from the multiple porous structures, internal reflection, and polarization effect (dipole and interfacial polarization) plays a synergistic role in the improved absorption efficiency and superior EMI shielding performance. Consequently, this work provides a promising MXene-based EMI shielding candidate with lightweight and high strength features.",

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author = "Hailong Xu and Xiaowei Yin and Xinliang Li and Minghang Li and Shuang Liang and Litong Zhang and Laifei Cheng",

note = "Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

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doi = "10.1021/acsami.8b21671",

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Xu, H , Yin, X, Li, X, Li, M, Liang, S, Zhang, L & Cheng, L 2019, ' Lightweight Ti ₂ CT _x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature ', ACS Applied Materials and Interfaces, vol. 11, no. 10, pp. 10198-10207. https://doi.org/10.1021/acsami.8b21671

Lightweight Ti ₂ CT _x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature . / Xu, Hailong ; Yin, Xiaowei; Li, Xinliang et al.
In: ACS Applied Materials and Interfaces, Vol. 11, No. 10, 13.03.2019, p. 10198-10207.

Research output: Contribution to journal › Article › peer-review

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T1 - Lightweight Ti 2 CT x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature

AU - Xu, Hailong

AU - Yin, Xiaowei

AU - Li, Xinliang

AU - Li, Minghang

AU - Liang, Shuang

AU - Zhang, Litong

AU - Cheng, Laifei

PY - 2019/3/13

Y1 - 2019/3/13

N2 - Lightweight absorption-dominated electromagnetic interference (EMI) shielding materials are more attractive than conventional reflection-dominated counterparts because they minimize the twice pollution of the reflected electromagnetic (EM) wave. Here, porous Ti 2 CT x MXene/poly(vinyl alcohol) composite foams constructed by few-layered Ti 2 CT x (f-Ti 2 CT x ) MXene and poly(vinyl alcohol) (PVA) are fabricated via a facile freeze-drying method. As superior EMI shielding materials, their calculated specific shielding effectiveness reaches up to 5136 dB cm 2 g -1 with an ultralow filler content of only 0.15 vol % and reflection effectiveness (SE R ) of less than 2 dB, representing the excellent absorption-dominated shielding performance. Contrast experiment reveals that the good impedance matching derived from the multiple porous structures, internal reflection, and polarization effect (dipole and interfacial polarization) plays a synergistic role in the improved absorption efficiency and superior EMI shielding performance. Consequently, this work provides a promising MXene-based EMI shielding candidate with lightweight and high strength features.

AB - Lightweight absorption-dominated electromagnetic interference (EMI) shielding materials are more attractive than conventional reflection-dominated counterparts because they minimize the twice pollution of the reflected electromagnetic (EM) wave. Here, porous Ti 2 CT x MXene/poly(vinyl alcohol) composite foams constructed by few-layered Ti 2 CT x (f-Ti 2 CT x ) MXene and poly(vinyl alcohol) (PVA) are fabricated via a facile freeze-drying method. As superior EMI shielding materials, their calculated specific shielding effectiveness reaches up to 5136 dB cm 2 g -1 with an ultralow filler content of only 0.15 vol % and reflection effectiveness (SE R ) of less than 2 dB, representing the excellent absorption-dominated shielding performance. Contrast experiment reveals that the good impedance matching derived from the multiple porous structures, internal reflection, and polarization effect (dipole and interfacial polarization) plays a synergistic role in the improved absorption efficiency and superior EMI shielding performance. Consequently, this work provides a promising MXene-based EMI shielding candidate with lightweight and high strength features.

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Xu H , Yin X, Li X, Li M, Liang S, Zhang L et al. Lightweight Ti ₂ CT _x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature ACS Applied Materials and Interfaces. 2019 Mar 13;11(10):10198-10207. doi: 10.1021/acsami.8b21671

Lightweight Ti ₂ CT _x MXene/Poly(vinyl alcohol) Composite Foams for Electromagnetic Wave Shielding with Absorption-Dominated Feature

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