Journal ArticleDOI
Broadband and Tunable High‐Performance Microwave Absorption of an Ultralight and Highly Compressible Graphene Foam
Yi Zhang,Yi Huang,Tengfei Zhang,Huicong Chang,Peishuang Xiao,Honghui Chen,Zhiyu Huang,Yongsheng Chen +7 more
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TLDR
The broadband and tunable high-performance microwave absorption properties of an ultralight and highly compressible graphene foam (GF) are investigated and it is shown that via physical compression, the microwave absorption performance can be tuned.Abstract:
The broadband and tunable high-performance microwave absorption properties of an ultralight and highly compressible graphene foam (GF) are investigated. Simply via physical compression, the microwave absorption performance can be tuned. The qualified bandwidth coverage of 93.8% (60.5 GHz/64.5 GHz) is achieved for the GF under 90% compressive strain (1.0 mm thickness). This mainly because of the 3D conductive network.read more
Citations
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Multiaxial electrospun generation of hollow graphene aerogel spheres for broadband high-performance microwave absorption
TL;DR: In this paper, a controllable hollow structure (HGAS) was designed and manufactured via coaxial electrospinning coupled with freeze-drying and calcination, and the as-obtained HGAS showed a minimum reflection loss of -52.7 dB, and a broad effective absorption bandwidth (fE) of 7.0 GHz with thickness of 2.3 mm.
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Starfish-like C/CoNiO2 heterostructure derived from ZIF-67 with tunable microwave absorption properties
TL;DR: In this paper, a starfish-like C/CoNiO2 has been prepared by a solvothermal synthesis and was further thermally etched, which exhibited significantly enhanced electromagnetic attenuation and reflection loss.
Journal ArticleDOI
In Situ Confined Bimetallic Metal-Organic Framework Derived Nanostructure within 3D Interconnected Bamboo-like Carbon Nanotube Networks for Boosting Electromagnetic Wave Absorbing Performances.
TL;DR: Attributed to the synergistic contributions of 3D interconnected carbon nanotube networks and MOFs derived M/C for multiple transmission path, impedance matching and dielectric loss, the FeNi@CNT/CNRs nanoarchitectures have demonstrated superior EMW absorbing performance.
Journal ArticleDOI
Nd doping of bismuth ferrite to tune electromagnetic properties and increase microwave absorption by magnetic–dielectric synergy
TL;DR: In this paper, the authors presented Nd doped BiFeO3 with electromagnetic matching, which exhibits tunable electromagnetic properties and high-performance microwave absorption, and highlighted the applications of BFO as a highperformance microwave absorber and opened up a promising feasible route to the development of microwave absorbers in imaging, healthcare, information safety and military fields.
Journal ArticleDOI
Constructing flower-like core@shell MoSe2-based nanocomposites as a novel and high-efficient microwave absorber
Jingjing Zhang,Zihan Li,Xiaosi Qi,Xiaosi Qi,Xiu Gong,Ren Xie,Chaoyong Deng,Wei Zhong,Youwei Du +8 more
TL;DR: In this paper, a simple and effective strategy was proposed to produce flower-like core-shell structure MoSe2-based nanocomposites, which could be applied as the very desirable candidates for high-performance microwave absorption materials.
References
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Journal ArticleDOI
Three-dimensional flexible and conductive interconnected graphene networks grown by chemical vapour deposition
TL;DR: The direct synthesis of three-dimensional foam-like graphene macrostructures, which are called graphene foams (GFs), by template-directed chemical vapour deposition is reported, demonstrating the great potential of GF/poly(dimethyl siloxane) composites for flexible, foldable and stretchable conductors.
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Microwave Absorption Enhancement and Complex Permittivity and Permeability of Fe Encapsulated within Carbon Nanotubes
TL;DR: In this paper, the absorption properties of CNT/crystalline Fe nanocomposites have been investigated and it was shown that the absorption property is due to the confinement of crystalline Fe in carbon nanoshells, deriving mainly from magnetic rather than electric effects.
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Multifunctional, ultra-flyweight, synergistically assembled carbon aerogels.
Haiyan Sun,Zhen Xu,Chao Gao +2 more
TL;DR: All carbon aerogels with ultralow density and temperature-invariant super-elasticity are fabricated by facile assembling of commercial carbon nanotubes and chemically-converted giant graphene sheets, on the basis of the synergistic effect between elastic CNTs ribs and giant graphene cell walls.
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Lightweight and Flexible Graphene Foam Composites for High‐Performance Electromagnetic Interference Shielding
TL;DR: It is believed that high electrical conductivity and connectivity of the conductive fi llers can improve EMI shielding performance.
Journal ArticleDOI
Reduced graphene oxides: light-weight and high-efficiency electromagnetic interference shielding at elevated temperatures.
Bo Wen,Mao-Sheng Cao,Ming-Ming Lu,Wen-Qiang Cao,Honglong Shi,Jia Liu,Xi-Xi Wang,Haibo Jin,Xiao-Yong Fang,Wenzhong Wang,Jie Yuan +10 more
TL;DR: Chemical graphitized r-GOs, as the thinnest and lightest material in the carbon family, exhibit high-efficiency electromagnetic interference shielding at elevated temperature, attributed to the cooperation of dipole polarization and hopping conductivity.