Lightweight MXene/Cellulose Nanofiber Composite Film for Electromagnetic Interference Shielding

Cui, Zhibo; Gao, Chunlei; Fan, Zhimin; Wang, Jingfeng; Cheng, Zhongjun; Xie, Zhimin; Liu, Yuyan; Wang, Youshan

doi:10.1007/s11664-020-08718-2

Cited by 56 publications

(17 citation statements)

References 48 publications

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“…Furthermore, the strong hydrogen bond interaction between MXene and HNFs promotes the load transfer and energy dissipation of the nanopaper during stretching. Compared to previously reported MXene-based composites (Figure e and Table S1), alternating multilayered HNFs/MXene nanopapers exhibit prominent advantages in terms of mechanical properties. ,− Therefore, the presented alternating multilayered HNFs/MXene nanopaper provides a new strategy for ultrathin and high mechanical EMI electromagnetic shielding materials.…”

Section: Resultsmentioning

confidence: 79%

Strong Holocellulose-Based Nanopaper with a Sandwich-Like Structure for Effective Electromagnetic Shielding

Rao

Ding

et al. 2022

ACS Sustainable Chem. Eng.

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Preparation of flexible, lightweight, stable, and robust electromagnetic interference (EMI) shielding materials is greatly desired but remains a scientific challenge. Herein, holocellulose nanofibers (HNFs) were employed to fabricate an alternating multilayered HNFs/MXene composite nanopaper with long-term durability and effective electromagnetic shielding performance by an alternate strategy. As a control, a hybrid method was adopted to prepare a nanopaper with a nacre-like lamellar structure. The alternating multilayered HNFs/MXene nanopaper with three layers of MXene (42.8% Ti 3 C 2 T x content) exhibits an impressive EMI shielding performance of 36.91 dB. More importantly, the mechanical properties of the alternating multilayered HNFs/MXene nanopaper are demonstrated at a superior level (tensile strength > 159.39 MPa, toughness > 7.36 MJ m −3 ). The outside HNFs and hexadecyltrimethoxysilane (HDTMS) hydrophobic layers of the alternating multilayered nanopaper can effectively protect MXene from oxygen and water molecules, decelerating the oxidation rate of MXene. Therefore, the EMI shielding efficiency of the alternating multilayered HNFs/ MXene nanopaper (the mass fraction of MXene is 40%) remained from 99.95 to 99.51% without obvious fatigue after 60 days in the atmosphere. This work provides an efficient strategy for promising materials for EMI shielding applications.

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Section: Resultsmentioning

confidence: 79%

Strong Holocellulose-Based Nanopaper with a Sandwich-Like Structure for Effective Electromagnetic Shielding

Rao

Ding

et al. 2022

ACS Sustainable Chem. Eng.

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“…Therefore, the MTBC films present surface-specific SE values (SSE/t) up to 16 660.2 dB·cm 2 ·g –1 , outperforming that of previously reported MXene-based films (Figure S13 and Table S4). ,,− To summarize, the MTBC-2.0% film presents the superior comprehensive performance in terms of mechanical properties, electrical conductivity, and EMI SE among all of the MXene–TOCNF films (Figure S15). It also demonstrates a great advantage in tensile strength, Young’s modulus, and electrical conductivity over most previously reported MXene-based composite films (Figure c and Table S5).…”

Section: Resultsmentioning

confidence: 97%

Rheology-Guided Assembly of a Highly Aligned MXene/Cellulose Nanofiber Composite Film for High-Performance Electromagnetic Interference Shielding and Infrared Stealth

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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Delicately aligned structures of two-dimensional (2D) MXene nanosheets have demonstrated positive effects on applications, especially in electromagnetic interference (EMI) shielding and infrared (IR) stealth. However, precise regulation of structural assembly by theory-guided solution processing is still a great challenge. Herein, one-dimensional (1D) cellulose nanofibers (CNFs) with a high aspect ratio are applied as a reinforcing agent and a rheological modifier for MXene/CNF colloids to fabricate aligned MXene-based materials for EMI shielding and IR stealth. Notably, a systematical rheological study of the MXene/CNF colloids is proposed to determine the optimal solution-processing conditions for finely oriented component arrangement requirements and provides in-depth information on the interactions between the components. The delicately regulated orientation structure assembled by shear inducement is convincingly demonstrated through micro-CT and wide-angle X-ray diffraction/small-angle X-ray scattering (WAXD/SAXS), which endows the MXene/CNF film with a significantly enhanced electrical conductivity of 46 685 S m–1, a tensile strength of 281.7 MPa, and Young’s modulus of 14.8 GPa. Furthermore, the highly aligned structure of the ultrathin film possesses a great enhancement in EMI shielding effectiveness (50.2 dB) and IR stealth (0.562 emissivity). These findings provide a fruitful understanding of the optimized fabrication in solution processing of high-performance MXene-based functional composite films and open up a great opportunity for the development of multifunctional stealth materials.

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“…3d). 48 When the CNF/PEDOT:PSS/MXene-50 nanocomposite film strip is connected to a circuit, an LED can be lit even when the strip is bent and twisted, indicating the excellent conductivity and flexibility of the film (Fig. 3e).…”

Section: Resultsmentioning

confidence: 99%

“…Due to the high conductivity of the CNF/PEDOT:PSS/MXene composite film, there is a large amount of free charge on their surfaces, causing a part of the electromagnetic waves injected into the surface of the composite films to be immediately reflected. 48 The dipolar polarization of the MXene nanosheet surface terminal caused by the incident electromagnetic wave also promotes the improvement of the overall EMI shielding performance. At the same time, due to the continuous conductive network structure, it is difficult for the incident electromagnetic waves to pass through the CNF/PEDOT:PSS/MXene nanocomposite film.…”

Section: Resultsmentioning

confidence: 99%

Strong, flexible, and highly conductive cellulose nanofibril/PEDOT:PSS/MXene nanocomposite films for efficient electromagnetic interference shielding

Liu

et al. 2022

Nanoscale

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Lightweight MXene/Cellulose Nanofiber Composite Film for Electromagnetic Interference Shielding

Cited by 56 publications

References 48 publications

Strong Holocellulose-Based Nanopaper with a Sandwich-Like Structure for Effective Electromagnetic Shielding

Strong Holocellulose-Based Nanopaper with a Sandwich-Like Structure for Effective Electromagnetic Shielding

Rheology-Guided Assembly of a Highly Aligned MXene/Cellulose Nanofiber Composite Film for High-Performance Electromagnetic Interference Shielding and Infrared Stealth

Strong, flexible, and highly conductive cellulose nanofibril/PEDOT:PSS/MXene nanocomposite films for efficient electromagnetic interference shielding

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