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Graphene and MXene-based porous structures for multifunctional electromagnetic interference shielding

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Abstract

Electrically conductive porous structures are ideal candidates for lightweight and absorption-dominant electromagnetic interference (EMI) shielding. In this review, we summarize the recent progress in developing porous composites and structures from emerging two-dimensional (2D) graphene and MXene nanosheets for EMI shielding applications. Important properties contributing to various energy loss mechanisms are probed with a critical discussion on their correlations with EMI shielding performance. Technological approaches to constructing bulk porous structures, such as 2D porous films, three-dimensional (3D) aerogels and foams, and hydrogels, are compared to highlight important material and processing parameters required to achieve optimal microstructures. A comprehensive comparison of EMI shielding performance is also carried out to elucidate the effects of different assembly techniques and microstructures. Distinctive multifunctional applications in adaptive EMI shielding, mechanical force attenuation, thermal management, and wearable devices are introduced, underlining the importance of unique compositions and microstructures of porous composites. The process-structure-property relationships established in this review would offer valuable guidance and insights into the design of lightweight EMI shielding materials.

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Acknowledgements

This project was financially supported by the Research Grants Council (GRF Projects: 16205517, 16209917, and 16200720) and the Innovation and Technology Commission (ITS/012/19) of Hong Kong SAR, and start-up fund for new recruits of PolyU (Nos. P0038855 and P0038858). This project was also supported by the Research Institute for Sports Science and Technology of PolyU (No. P0043535).

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  1. Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, 999077, China

    Xi Shen

  2. School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, NSW, 2052, Australia

    Jang-Kyo Kim

  3. The Research Institute for Sports Science and Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong, 999077, China

    Xi Shen

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Shen, X., Kim, JK. Graphene and MXene-based porous structures for multifunctional electromagnetic interference shielding. Nano Res. 16, 1387–1413 (2023). https://doi.org/10.1007/s12274-022-4938-6

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