Formation of Sn filled CNTs nanocomposite: Study of their magnetic, dielectric properties and enhanced microwave absorption performance at gigahertz frequencies

Wang, Dongxing; Saleem, Muhammad Farooq; Javid, Muhammad; Qu, Xinghao; Farid, Amjad; Irfan, Muhammad; Xu, Xilong; Dong, Xinglong

doi:10.1016/j.ceramint.2022.04.183

Cited by 8 publications

(2 citation statements)

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“…β of some common solvents and metal halides packed into carbon nanotubes at the melting point has been tested or calculated as follows (unit: mN/m): water (72.8), methanol (22.07), acetone (23.46), tetrachloromethane (26.43) [42] , AgCl , AgBr (151), AgI (171), KCl (93), KI (70), NdCl 3 (102), ZnCl 4 (1.3), PbO (132), V 2 O 5 (53), etc. [43] The filling of salts such as metal halides and oxides is often carried out in this method, such as KI, AgI, and Sb 2 O 3 filled by Sloan's group [44] . The following table is a list of various materials that have been reported in the literature for filling CNTs in recent years.…”

Section: Ex-situ Fillingmentioning

confidence: 99%

“…Copyright 2019, Wiley). (E) Model illustration of Viol inside a metallic SWCNT, representative AC-HRTEM image of Viol@SWCNT and SEM image of a Viol@SWCNT (Reproduced with permission previously studied examples such as metal oxide [44,101] , carbides [61,84] , and halides [102][103][104] . This section will concentrate on some novel structures and systems, such as transition metal dichalcogenides (TMDs) [18,50,56,57,70,101,[105][106][107][108] and perovskite [53] .…”

Section: Metallic Inorganic Compoundsmentioning

confidence: 99%

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Filled carbon-nanotube heterostructures: from synthesis to application

2023

Microstructures

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Carbon nanotubes (CNTs) have a one-dimensional (1D) hollow tubular structure formed by graphene curling with remarkable electronic, optical, mechanical, and thermal properties. Except for the applications based on their intrinsic properties, such as electronic devices, THz sensors, and conductive fiber, CNTs can also act as nanovessels for nano-chemical reactions and hosts for encapsulating various materials to form heterostructures. In this review, we have summarized the research status on filled carbon-nanotube heterostructures from four aspects: synthesis, morphological and electronic structure analysis, potential applications, and perspective. We begin with an overview of the filling methods and mechanisms of the 1D heterostructures. Following that, we discuss their properties in terms of morphological and electronic structure. The burgeoning applications of 1D heterostructures in nano-electronic, energy, storage, catalysis, and other fields are then thoroughly overviewed. Finally, we offer a brief perspective on the possible opportunities and challenges of filled CNTs heterostructures.

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Section: Ex-situ Fillingmentioning

confidence: 99%

Section: Metallic Inorganic Compoundsmentioning

confidence: 99%

Filled carbon-nanotube heterostructures: from synthesis to application

2023

Microstructures

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Silane functionalized cardanol/calcium carbonate epoxy‐reinforced polymer nanocomposites for sustainable microwave absorption applications

Sathish Kumar,

Mandhakini,

Jeferson

et al. 2024

Polymer Composites

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Microwave absorption properties of epoxy resin/cardanol (ER/C) and epoxy resin/silane functionalized cardanol (ER/SFC) nanocomposites with various percentages of calcium carbonate nanoplatelets (CCNPs) studied in the frequency range of 8–18 GHz. The CCNPs obtained from the mussel shell were reinforced into a cardanol‐toughened ER matrix to mimic the composite structure of the abalone shell. The phase separation between ER, SFC, and CCNPs encapsulated in a polymer matrix was analyzed with SEM, and the presence of a low level of Fe3O4 magnetic impurities of 0.007 emu/g present as shown and verified by XRD and VSM analyses. The nanocomposites with ER/SFC/CCNPs 3 wt.% demonstrate a high surface roughness of 3.467 nm and an enhanced hydrophobicity, as indicated by a high contact angle of 102°. The silanization‐induced localization of CCNPs facilitates a mutually conducive morphology for excellent viscoelastic and microwave absorption properties. The increase in damping factor ratio of approximately 0.85 augments the microwave absorption property and it observed that ER/SFC/CCNPs 3 wt.% nanocomposites show higher reflection loss (RL) of more than 99.9% with RL of −43 dB at 12 GHz. The research aims to fabricate cost‐effective and multifunctional nanocomposites for microwave absorption applications.Highlights Excellent hydrophobicity owing to the surface roughness of 3.467 nm. Maximum contact angle of 102.1° due to the reinforcement of CCNPs and SFC to the epoxy matrix. Efficient microwave attenuation due to the reflection loss of −43 dB. Excellent microwave absorption of 99.99% with a damping factor of 0.85. Higher storage modulus due to the strong inter‐penetrating network of the composite.

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