Iron nanoparticles embedded in polypyrrole and tellurium oxide ternary nanocomposites for electrical conductivity and electromagnetic interference shielding

Patel, Bhaven; Revanasiddappa, M.; Yallappa, S.; Rangaswamy, D. R.

doi:10.1007/s10854-023-10298-w

Cited by 4 publications

(1 citation statement)

References 51 publications

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“…Due to their high surface area-to-volume ratios, these metal nanocomposites exhibit excellent optical and electronic properties. 1 Polyaniline conducting polymers embedded with silver nanoparticles have been shown to exhibit efficient electrocatalytic properties, 2 and have also been found to be useful in sensor devices 3 and fuel cells. 4 PANI has gained tremendous importance in the area of conducting polymers due to its decent environmental stability, ease of doping by chemical processes, and flexibility in synthesis, which can be readily obtained by oxidative polymerization chemical reactions of aniline.…”

Section: Introductionmentioning

confidence: 99%

Nanoclay-based conductive and electromagnetic interference shielding properties of silver-decorated polyaniline and its nanocomposites

Moolemane,

Nayak,

Marudhachalam

et al. 2023

Mater. Adv.

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Section: Introductionmentioning

confidence: 99%

Nanoclay-based conductive and electromagnetic interference shielding properties of silver-decorated polyaniline and its nanocomposites

Moolemane,

Nayak,

Marudhachalam

et al. 2023

Mater. Adv.

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Tellurium Nanoparticles Incorporated into Electrospun Poly(acrylonitrile) Nanofibers, Followed by Carbonization and Their Poly(dimethylsiloxane) Composites for Electromagnetic Interference Shielding

Sharma,

Joseph,

M S

et al. 2024

ACS Appl. Nano Mater.

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Miniaturized, flexible, and highly integrated electronic devices have become an essential part of everyday life. This has contributed to a huge increase in the emission of electromagnetic (EM) waves and has resulted in electromagnetic interference (EMI), which can affect the function of the devices. So, high-performance EMI shielding materials assume great importance. Low density and favorable flexibility are desirable properties for these shielding materials. The present study reports tellurium nanoparticles (Te NPs) incorporated into an nitrogendoped carbon nanofiber (Te-CNF) prepared through electrospinning, followed by carbonization, for EMI shielding applications. Tellurium is a metalloid with a narrow band gap, and the incorporation of Te NPs in carbon nanofiber (CNF) may alter the electronic properties to improve the 3D conductive network. Te NPs also can introduce polarization sites and heterointerfaces in CNF. Te-CNF exhibited an average EMI shielding effectiveness of 37 dB in the X-band region with a thickness of 0.08 mm and a density of 0.499 g cm −1 and possessed a high electrical conductivity of 0.68 S cm −1 . Te-CNF exhibited higher SE A values compared to SE R due to the synergistic effect of the incorporated Te NPs and nitrogen-doped CNF, such as interfacial polarization, conduction loss, polarization loss, and multiple scattering and multiple internal reflections of EM waves. Poly(dimethylsiloxane) (PDMS), which is a common flexible substrate, has been used to improve the flexibility and ease of handling of the prepared Te-CNF mat. Thus, the EMI shielding property of Te-CNF and the flexibility of the PDMS substrate have been made use of in the composite to achieve a flexible EMI shielding material. The Te-CNF and its PDMS composites are lightweight, flexible, and hydrophobic and exhibit a high EMI shielding property.

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Multifunctional composite materials for electromagnetic interference shielding

Sethi,

Malhotra,

Sachdeva

et al. 2024

Polymer-Plastics Technology and Materials

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Iron nanoparticles embedded in polypyrrole and tellurium oxide ternary nanocomposites for electrical conductivity and electromagnetic interference shielding

Cited by 4 publications

References 51 publications

Nanoclay-based conductive and electromagnetic interference shielding properties of silver-decorated polyaniline and its nanocomposites

Nanoclay-based conductive and electromagnetic interference shielding properties of silver-decorated polyaniline and its nanocomposites

Tellurium Nanoparticles Incorporated into Electrospun Poly(acrylonitrile) Nanofibers, Followed by Carbonization and Their Poly(dimethylsiloxane) Composites for Electromagnetic Interference Shielding

Multifunctional composite materials for electromagnetic interference shielding

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