Journal ArticleDOI
Ferroferric Oxide/Multiwalled Carbon Nanotube vs Polyaniline/Ferroferric Oxide/Multiwalled Carbon Nanotube Multiheterostructures for Highly Effective Microwave Absorption
Mao-Sheng Cao,Jian Yang,Wei-Li Song,Deqing Zhang,Bo Wen,Haibo Jin,Zhi-Ling Hou,Jie Yuan,Jie Yuan +8 more
TLDR
Ferroferric oxide (Fe(3)O(4)) was selected as the phase in multiwalled carbon nanotube (MWCNT)-based composites for enhancing magnetic properties to obtain improved electromagnetic attenuation and exhibited enhanced magnetic properties coupled with increased dielectric properties.Abstract:
Light-weight nanocomposites filled with carbon nanotubes (CNTs) are developed for their significant potentials in electromagnetic shielding and attenuation for wide applications in electronics, communication devices, and specific parts in aircrafts and vehicles. Specifically, the introduction of a second phase into/onto CNTs for achieving CNT-based heterostructures has been widely pursued due to the enhancement in either dielectric loss or magnetic loss. In this work, ferroferric oxide (Fe(3)O(4)) was selected as the phase in multiwalled carbon nanotube (MWCNT)-based composites for enhancing magnetic properties to obtain improved electromagnetic attenuation. A direct comparison between the two-phase heterostructures (Fe(3)O(4)/MWCNTs) and polyaniline (PANI) coated Fe(3)O(4)/MWCNTs, namely, three-phase heterostructures (PANI/Fe(3)O(4)/MWCNTs), was made to investigate the interface influences of Fe(3)O(4) and PANI on the complex permittivity and permeability separately. Compared to PANI/Fe(3)O(4)/MWCNTs, Fe(3)O(4)/MWCNTs exhibited enhanced magnetic properties coupled with increased dielectric properties. Interfaces between MWCNTs and heterostructures were found to play a role in the corresponding properties. The evaluation of microwave absorption of their wax composites was carried out, and the comparison between Fe(3)O(4)/MWCNTs and PANI/Fe(3)O(4)/MWCNTs with respect to highly efficient microwave absorption and effective absorption bandwidth was discussed.read more
Citations
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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.
Journal ArticleDOI
Temperature dependent microwave attenuation behavior for carbon-nanotube/silica composites
Bo Wen,Mao-Sheng Cao,Zhi-Ling Hou,Wei-Li Song,Lu Zhang,Ming-Ming Lu,Haibo Jin,Xiao-Yong Fang,Wenzhong Wang,Jie Yuan +9 more
TL;DR: In this paper, the authors evaluated the dielectric properties and microwave attenuation performances over the full X-band (8.2-12.4 GHz) at a wide temperature ranging from 100 to 500 °C.
Journal ArticleDOI
Polymer/carbon based composites as electromagnetic interference (EMI) shielding materials
Jean-Michel Thomassin,Christine Jérôme,Thomas Pardoen,Christian Bailly,Isabelle Huynen,Christophe Detrembleur +5 more
TL;DR: A review of the state-of-the-art research in the design and characterization of polymer/carbon based composites as EMI shielding materials can be found in this paper.
Journal ArticleDOI
2D MXenes: Electromagnetic property for microwave absorption and electromagnetic interference shielding
TL;DR: In this article, the state-of-the-art in electromagnetic wave absorbing and shielding of MXene-based matrials is evaluated and dissected, highlighting the major problems and bottlenecks.
References
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Journal ArticleDOI
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.
Journal ArticleDOI
The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave-absorption of short carbon fiber/silica composites
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Journal ArticleDOI
Novel carbon nanotube-polystyrene foam composites for electromagnetic interference shielding.
TL;DR: The electromagnetic interference (EMI) shielding effectiveness measurements indicated that a novel carbon nanotube-polystyrene foam composite can be used as very effective, lightweight shielding materials.
Journal ArticleDOI
Electromagnetic Interference (EMI) Shielding of Single-Walled Carbon Nanotube Epoxy Composites
Ning Li,Yi Huang,Feng Du,Xiaobo He,Xiao Lin,Hong-Jun Gao,Yanfeng Ma,Feifei Li,Yongsheng Chen,Peter C. Eklund +9 more
TL;DR: The results indicate that single-walled carbon nanotube-polymer composites can be used as effective lightweight EMI shielding materials and are found to correlate with the dc conductivity.