Polyimide aerogel-derived amorphous porous carbon/crystalline carbon composites for high-performance microwave absorption

Wang, Ziqing; Min, Yonggang; Fang, Jiyong; Yu, Wentao; Huang, Wanjun; Lu, Xiaochuang; Wang, Bolin

doi:10.1039/d3ra00155e

Cited by 7 publications

(1 citation statement)

References 51 publications

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“…Fe 3 O 4 , CoFe 2 O 4 ). 12–15 Over the past few years, there has been a growing interest in carbon materials such as porous carbon, 16,17 carbon fibre (CF), 18,19 and carbon nanotubes (CNT). 20–22 These carbon materials exhibit characteristics distinct from metal composites in electromagnetic wave absorption applications, including lighter weight, higher dielectric loss, and chemical stability.…”

Section: Introductionmentioning

confidence: 99%

Polyimide-based porous carbon and cobalt nanoparticle composites as high-performance electromagnetic wave absorbers

Yu,

Lin,

Zhao

et al. 2024

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Polyimide-based porous carbon and cobalt nanoparticle composites as high-performance electromagnetic wave absorbers

Yu,

Lin,

Zhao

et al. 2024

RSC Adv.

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Multifunctional Electromagnetic Responsive Porous Materials Synthesized by Freeze Casting: Principles, Progress, and Prospects

Ning,

Zeng,

Huang

et al. 2024

Adv Funct Materials

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Freeze casting is a solidification technique utilized in the fabrication of porous materials. However, the freeze casting process is quite complex, and significant challenges remain in precisely controlling the pore size and shape of porous structures. This study aims to investigate the customization of multifunctional electromagnetic wave (EMW) absorbers with 3D porous structures via freeze casting. This review initially presents the fundamental principles underlying the freeze casting technique and examines the correlation between internal and external factors during the preparation process and porosity. The emerging trends in constructing novel and intricate macroscopic structures through freeze casting are subsequently outlined. Furthermore, this review focuses on the fabrication of composites with various porous microstructures through freeze casting of low‐dimensional building blocks, and their EMW response and multifunctional properties. By regulating the internal and external influencing mechanisms of freeze casting, porous EMW absorption materials exhibit outstanding advantages such as electromagnetic property manipulation, controllable structure, high porosity, high specific surface area, lightweight, and flexibility. These features broaden their applications in electromagnetic shielding, mechanical property, radar stealth, thermal insulation and fire prevention, flexible sensors, antifreeze ability, etc. In addition, we discuss the challenges and prospects of high‐performance EMW absorbers using freeze casting techniques.

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Prussian blue derived N-doped porous carbon/Fe4N/rGO for broadband electromagnetic wave absorption

Dong,

Li,

Zhang

et al. 2024

Ceramics International

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Polyimide aerogel-derived amorphous porous carbon/crystalline carbon composites for high-performance microwave absorption

Abstract: High-performance polyimide-based porous carbon/crystalline composite absorbers (PIC/CNT) were prepared by vacuum freeze-drying and high-temperature pyrolysis.

Cited by 7 publications

References 51 publications

Polyimide-based porous carbon and cobalt nanoparticle composites as high-performance electromagnetic wave absorbers

Polyimide-based porous carbon and cobalt nanoparticle composites as high-performance electromagnetic wave absorbers

Multifunctional Electromagnetic Responsive Porous Materials Synthesized by Freeze Casting: Principles, Progress, and Prospects

Prussian blue derived N-doped porous carbon/Fe4N/rGO for broadband electromagnetic wave absorption

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