Recent advances in graphene aerogels as absorption-dominated electromagnetic interference shielding materials

Cheng, Zheng; Wang, Ruofeng; Wang, Yang; Cao, Yishu; Shen, Ya; Huang, Yi; Chen, Yongsheng

doi:10.1016/j.carbon.2023.01.032

Cited by 70 publications

(50 citation statements)

References 168 publications

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“…The use of membrane shielding material is a very effective electromagnetic/radiation protection method, which can reduce the radiation by reflection or absorption, especially when the distance and time are limited [ 17 , 18 , 19 ]. In order to obtain a good shielding effect, appropriate shielding materials should be selected that are appropriate for the given application.…”

Section: Introductionmentioning

confidence: 99%

Research Progress with Membrane Shielding Materials for Electromagnetic/Radiation Contamination

Zhang

2023

Membranes

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As technology develops at a rapid pace, electromagnetic and radiation pollution have become significant issues. These forms of pollution can cause many important environmental issues. If they are not properly managed and addressed, they will be everywhere in the global biosphere, and they will have devastating impacts on human health. In addition to minimizing sources of electromagnetic radiation, the development of lightweight composite shielding materials to address interference from radiation has become an important area of research. A suitable shielding material can effectively reduce the harm caused by electromagnetic interference/radiation. However, membrane shielding materials with general functions cannot effectively exert their shielding performance in all fields, and membrane shielding materials used in different fields must have specific functions under their use conditions. The aim of this review was to provide a comprehensive review of these issues. Firstly, the causes of electromagnetic/radiation pollution were briefly introduced and comprehensively identified and analyzed. Secondly, the strategic solutions offered by membrane shielding materials to address electromagnetic/radiation problems were discussed. Then, the design concept, technical innovation, and related mechanisms of the existing membrane shielding materials were expounded, the treatment methods adopted by scholars to study the environment and performance change laws were introduced, and the main difficulties encountered in this area of research were summarized. Finally, on the basis of a comprehensive analysis of the protection provided by membrane shielding materials against electromagnetic/radiation pollution, the action mechanism of membrane shielding materials was expounded in detail, and the research progress, structural design and performance characterization techniques for these materials were summarized. In addition, the future challenges were prospected. This review will help universities, research institutes, as well as scientific and technological enterprises engaged in related fields to fully understand the design concept and research progress of electromagnetic/radiation-contaminated membrane shielding materials. In addition, it is hoped that this review will facilitate efforts to accelerate the research and development of membrane shielding materials and offer potential applications in areas such as electronics, nuclear medicine, agriculture, and other areas of industry.

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Section: Introductionmentioning

confidence: 99%

Research Progress with Membrane Shielding Materials for Electromagnetic/Radiation Contamination

Zhang

2023

Membranes

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“…2,3 In the field of national defense and military, electromagnetic wave leakage will seriously endanger national defense information security and national secret protection. 4,5 Electromagnetic radiation pollution has become the fourth largest public hazard after air pollution, noise pollution, and water pollution. Therefore, people have done a lot of research to develop effective electromagnetic shielding and electromagnetic absorption materials to alleviate the adverse effects of electromagnetic wave pollution.…”

Section: Introductionmentioning

confidence: 99%

“…With the rapid advances in fifth-generation mobile communication technologies very recently, the use of compact and miniaturized electronic equipment continues to increase, and the electromagnetic environment is also becoming increasingly complex, which inevitably brings more electromagnetic wave pollution problems . Electromagnetic interference (EMI) will not only interfere and seriously affect electronic equipment but also cause harm to human health and the environment. , In the field of national defense and military, electromagnetic wave leakage will seriously endanger national defense information security and national secret protection. , Electromagnetic radiation pollution has become the fourth largest public hazard after air pollution, noise pollution, and water pollution. Therefore, people have done a lot of research to develop effective electromagnetic shielding and electromagnetic absorption materials to alleviate the adverse effects of electromagnetic wave pollution.…”

Section: Introductionmentioning

confidence: 99%

Ultrathin and Flexible ANF/APP/PRGO Composite Films for High-Performance Electromagnetic Interference Shielding and Joule Heating

Wang

Zhang

2023

Ind. Eng. Chem. Res.

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With the problem of electromagnetic interference (EMI) increasingly serious, the development of lightweight and flexible electromagnetic shielding composite films with excellent Joule heating performance and good mechanical properties is of great significance for modern electronic devices. In this study, we prepared aramid nanofiber/aramid nanofiber-poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate)/polydopamine-modified reduced graphene oxide (ANF/APP/PRGO) composite films with excellent electromagnetic shielding properties and electrical heating properties by stepwise vacuum filtration. With high conductivity (124.10 S/cm) and multi-interface electromagnetic wave reflection caused by the layered structure, the composite films achieve an EMI shielding effectiveness (SE) as high as 40.52 dB at 8.2–12.4 GHz (X-band) with a low thickness (∼22 μm). At the same time, the composite films also exhibit excellent electrical heating performance with fast response and cycle stability, which can reach a surface saturation temperature as high as 127.6 °C under an applied voltage of 7 V. Therefore, it can be envisaged that the ANF/APP/PRGO composite films have certain practical application value in the fields of electromagnetic shielding and electric heating.

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“…Due to its porous nature, graphene networks can be excellent candidates for the storage and adsorption of other elements; for example, hydrogen or catalytic metal nanoparticles [ 23 ]. Graphene aerogels also show a wide bandwidth, high electrical conductivity [ 24 ], thermal insulation [ 25 ] and high compressibility [ 23 , 26 , 27 ]. The fabrication methods used to obtain various 3D graphenes will significantly affect their physical and mechanical properties [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Graphene Networks under Compression: A Molecular Dynamics Simulation

Polyakova

Baimova

2023

IJMS

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Molecular dynamics simulation is used to study and compare the mechanical properties obtained from compression and tension numerical tests of multilayered graphene with an increased interlayer distance. The multilayer graphene with an interlayer distance two-times larger than in graphite is studied first under biaxial compression and then under uniaxial tension along three different axes. The mechanical properties, e.g., the tensile strength and ductility as well as the deformation characteristics due to graphene layer stacking, are studied. The results show that the mechanical properties along different directions are significantly distinguished. Two competitive mechanisms are found both for the compression and tension of multilayer graphene—the crumpling of graphene layers increases the stresses, while the sliding of graphene layers through the surface-to-surface connection lowers it. Multilayer graphene after biaxial compression can sustain high tensile stresses combined with high plasticity. The main outcome of the study of such complex architecture is an important step towards the design of advanced carbon nanomaterials with improved mechanical properties.

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Recent advances in graphene aerogels as absorption-dominated electromagnetic interference shielding materials

Cited by 70 publications

References 168 publications

Research Progress with Membrane Shielding Materials for Electromagnetic/Radiation Contamination

Research Progress with Membrane Shielding Materials for Electromagnetic/Radiation Contamination

Ultrathin and Flexible ANF/APP/PRGO Composite Films for High-Performance Electromagnetic Interference Shielding and Joule Heating

Mechanical Properties of Graphene Networks under Compression: A Molecular Dynamics Simulation

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