Natural wood templated hierarchically cellular NbC/Pyrolytic carbon foams as Stiff, lightweight and High-Performance electromagnetic shielding materials

Liu, Xingmin; Liu, Heqiang; Xu, Hailong; Xie, Wenjie; Li, Minghang; Liu, Jianxi; Liu, Guoqiang; Weidenkaff, Anke; Riedel, Ralf

doi:10.1016/j.jcis.2021.08.110

Cited by 24 publications

(10 citation statements)

References 55 publications

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“…4). 33–63 Detailed data for the comparison of EMI shielding properties including SE Total and thickness-normalized specific SE (SSE/d) are shown in Tables 1 and 2.…”

Section: Resultsmentioning

confidence: 99%

Time-difference blow-spinning to a flexible dual-scale multilayer fabric for highly efficient electromagnetic interference shielding

Song

et al. 2022

J. Mater. Chem. C

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“…4). 33–63 Detailed data for the comparison of EMI shielding properties including SE Total and thickness-normalized specific SE (SSE/d) are shown in Tables 1 and 2.…”

Section: Resultsmentioning

confidence: 99%

Time-difference blow-spinning to a flexible dual-scale multilayer fabric for highly efficient electromagnetic interference shielding

Song

et al. 2022

J. Mater. Chem. C

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“…It has attracted a lot of research attention in the past three decades since its structure can be adjusted and regulated based on its uses. Such a lightweight and tunable material has great potential applications in many areas like structural materials for automotive and aerospace, catalyst supports for membranes, pollutant removal, EMI shielding, , and so on. Though metals like gold or nickel can be foamed, they have limited applications.…”

Section: Introductionmentioning

confidence: 99%

Introduction of the Polymer Compatibility Factor for Preparation of Pitch-Based Carbon Foams by Polymer-Assisted Template Foaming

Banerjee

Chandaliya

Dash

2023

ACS Appl. Eng. Mater.

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Preparation of coal tar pitch-based carbon foams has been attempted through a polymer-assisted sacrificial template method. The polymer helped in ensuring maximum impregnation of the foaming precursor in the template. The polymer compatibility factor has been introduced to study the compatibility of different polymers with the precursor. It is a very crucial parameter that can serve as a quantitative and qualitative indicator in the field of polymer-assisted template foaming. The result shows that a precursor particle size of 100 μm or less is suitable for foaming. Polyvinyl alcohol seems to be the most compatible polymer for polymer-assisted template foaming. A lower polymer concentration of 3 wt % is optimum for ensuring the highest compatibility factor of 0.49 and maximum compressive strength of the resultant foam. The final carbon foam obtained by this method exhibited a bulk density of 0.24 g/cc and a compressive strength of 4.23 MPa.

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“…Furthermore, we noticed that the design of the porous structure is vital for achieving high-performance and controllable EMI shields. Compared with the randomly porous structures, biomimetic ordered pores like honeycomb and lamellar aligned pores can improve the multiple reflections of incident EMWs, enhancing the interactions between EMWs and cell walls and thus the EMI shielding performance [36][37][38][39][40]. Although this has been reported in the porous foam/aerogel-based EMI shields, the EMI shielding hydrogels with biomimetic ordered pores have not been developed yet.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2022

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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.

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Natural wood templated hierarchically cellular NbC/Pyrolytic carbon foams as Stiff, lightweight and High-Performance electromagnetic shielding materials

Cited by 24 publications

References 55 publications

Time-difference blow-spinning to a flexible dual-scale multilayer fabric for highly efficient electromagnetic interference shielding

Time-difference blow-spinning to a flexible dual-scale multilayer fabric for highly efficient electromagnetic interference shielding

Introduction of the Polymer Compatibility Factor for Preparation of Pitch-Based Carbon Foams by Polymer-Assisted Template Foaming

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

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