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Review Article | Open Access

Hydrogel-based composites beyond the porous architectures for electromagnetic interference shielding

Yunfei Yang1,§, Mingrui Han1,§, Wei Liu2,3, Na Wu4( ), Jiurong Liu1( )
Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, Shandong University, Jinan 250061, China
State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
Shenzhen research institute of Shandong University, Shenzhen 518052, China
Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich CH-8093, Switzerland

§ Yunfei Yang and Mingrui Han contributed equally to this work.

Show Author Information

Graphical Abstract

In this review, we summarized the hydrogel-based composites for electromagnetic interference (EMI) shielding. The preparation process, research progress, as well as the multifunctionalities of the hydrogel-based EMI shields were introduced. The importance of pore structure design and preparation process of biomimetic aligned porous architectures were also emphasized to provide a reference for hydrogel-based EMI shields.

Abstract

With the rapid development of the electronic industry and wireless communication technology, electromagnetic interference (EMI) or pollution has been increasingly serious. This not only severely endangers the normal operation of electronic equipment but also threatens human health. Therefore, it is urgent to develop high-performance EMI shielding materials. The advent of hydrogel-based materials has given EMI shields a novel option. Hydrogels combined with conductive functional materials have good mechanical flexibility, fatigue durability, and even high stretchability, which are beneficial for a wide range of applications, especially in EMI shielding and some flexible functional devices. Herein, the current progress of hydrogel-based EMI shields was reviewed, in the meanwhile, some novel studies about pore structure design that we believe will help advance the development of hydrogel-based EMI shielding materials were also included. In the outlook, we suggested some promising development directions for the hydrogel-based EMI shields, by which we hope to provide a reference for designing hydrogels with excellent EMI shielding performance and multifunctionalities.

Keywords

electromagnetic interference (EMI) shieldingporoushydrogelsstructural designcomposites

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Nano Research
Volume 15 Issue 10,
October 2022
Pages 9614-9630
DOI: 10.1007/s12274-022-4817-1
Cite this article:
Yang Y, Han M, Liu W, et al. Hydrogel-based composites beyond the porous architectures for electromagnetic interference shielding. Nano Research, 2022, 15(10): 9614-9630. https://doi.org/10.1007/s12274-022-4817-1
Topics:
AerogelsFabricationGelsMicrowave sensorsPore structureStructural design
Part of a topical collection:
EM Wave Functional Materials

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Received: 21 June 2022
Revised: 19 July 2022
Accepted: 24 July 2022
Published: 18 August 2022
© The Author(s) 2022

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