Fabrication of CNTs supported binary nanocomposite with multiple strategies to boost electrochemical activities

Aadil, Muhammad; Zulfiqar, Sonia; Shahid, Muhammad; Agboola, Philips O.; Al-Khalli, Najeeb Faud; Warsi, Muhammad Farooq; Shakir, Imran

doi:10.1016/j.electacta.2021.138332

Cited by 89 publications

(9 citation statements)

References 51 publications

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“…Figure a shows the Raman spectra of CNFs and LSCO-CNFs. Both the samples show peaks at 1349 and 1593 cm –1 corresponding to D-band and G-band, respectively, similar to nanostructured carbonaceous materials such as graphene and CNTs. − The D band is associated with disordered turbostratic structures, whereas G-band is attributed to the graphitic structures. The ratio of intensity of D-band and G-band ( I D / I G ) of CNFs and LSCO-CNFs is 0.90 and indicates the turbostratic carbon structure of both the samples.…”

Section: Resultsmentioning

confidence: 96%

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La_0.85Sr₀.₁₅CoO_3−δ Nanoparticles for Green EMI Shielding

Sharma

James

2023

ACS Appl. Nano Mater.

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High-performance green electromagnetic interference (EMI) shielding materials are in great demand due to the growing need for portable electronic devices and high speed digital communication devices. Developing high-efficiency, lightweight, and flexible EMI shielding materials for practical applications is still a major challenge. Herein, we demonstrate a facile approach for fabricating thin and lightweight N-doped carbon nanofibers (CNFs) containing La 0.85 Sr 0.15 CoO 3−δ (LSCO) nanoparticles (NPs) (LSCO-CNFs) through electrospinning followed by heat treatment. CNFs incorporated with 25 wt % LSCO NPs (LSCO-CNFs-25) exhibited high electrical conductivity (2.1 S cm −1 ) and high EMI shielding effectiveness (EMI SE) of 45 dB with a low thickness (0.08 mm) in Xband, K u -band, and K-band (8.2−26.5 GHz). The material showed an absorption-dominated shielding mechanism due to formation of a 3D electrically conductive network, high interfacial polarization arising from the presence of LSCO NPs in CNFs, and the porous and layer-by-layer structure of CNFs. The flexible polydimethylsiloxane (PDMS) composites of LSCO-CNFs were prepared by hand lay-up methods for enhancing the mechanical properties and hydrophobicity. The LSCO-CNFs-25 PDMS composites exhibited a high EMI SE of 45.6 dB with a thickness of 0.62 mm. The LSCO-CNFs-PDMS composites are ideal for fabricating lightweight, thin, waterproof, flexible, and high-performance EMI shielding materials.

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Section: Resultsmentioning

confidence: 96%

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La_0.85Sr₀.₁₅CoO_3−δ Nanoparticles for Green EMI Shielding

Sharma

James

2023

ACS Appl. Nano Mater.

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“…26 The GZFO/C nanomaterial's Bragg reflection is almost similar to that of the GZFO nanomaterial except for an additional weakly intense hump around 2 θ = 25°, which could be attributed to the CNT's existence in the composite sample. 27,28 Eqn (2) and (3) were used to determine the % crystallinity and % porosity of the ZFO and GZFO nanomaterials. 29,30 In this context, A CP and A AP denote the corresponding measurements of the area under the crystalline and all diffraction peaks.…”

Section: Resultsmentioning

confidence: 99%

Gadolinium doped zinc ferrite nanoarchitecture reinforced with a carbonaceous matrix: a novel hybrid material for next-generation flexible capacitors

Aadil,

Taki,

Zulfiqar

et al. 2023

RSC Adv.

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“…The per cent porosity (% Porosity ) was also determined by the following well-known relationship [26-29]: In Equation (2), d x and d b denote the X-ray and bulk density, respectively. The % Porosity for the SiO 2 /CFs-1350 sample comes to 92.12%.…”

Section: Resultsmentioning

confidence: 99%

“…The per cent porosity (%Porosity) was also determined by the following well-known relationship [26][27][28][29]:…”

Section: Phase Component Analysismentioning

confidence: 99%

Effects of sol contents and sintering temperatures on SiO₂ coated needled carbon fibre felt composites

Wang

Chen

Huang

et al. 2022

Advances in Applied Ceramics

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Carbon fibre has excellent mechanical properties at high temperatures but weak oxidation resistance. The paper prepared the anti-oxidative silica coating on the surface of needled carbon fibre felt by the sol-gel method and discussed the effects of sol content and sintering temperature on the coatings' performance. The phase composition, density, thermal conductivity and thermal stability of derived composites were characterised, and the structure and morphology of SiO 2 coatings were also analysed by scanning electron microscopy. The results indicated that a uniform and complete coating could be formed on the fibre surface when the sol content exceeds 20%. Ceramic particles sintered below 1200°C were amorphous silica, while those sintered at 1350°C were cristobalite. Compared with other processes, 20% silica sol content or sintering at 1350°C could provide better antioxidant protection. The new coating process is significant for retarding fibre oxidation in a high-temperature environment.

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Fabrication of CNTs supported binary nanocomposite with multiple strategies to boost electrochemical activities

Cited by 89 publications

References 51 publications

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La_0.85Sr₀.₁₅CoO_3−δ Nanoparticles for Green EMI Shielding

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La_0.85Sr₀.₁₅CoO_3−δ Nanoparticles for Green EMI Shielding

Gadolinium doped zinc ferrite nanoarchitecture reinforced with a carbonaceous matrix: a novel hybrid material for next-generation flexible capacitors

Effects of sol contents and sintering temperatures on SiO₂ coated needled carbon fibre felt composites

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Fabrication of CNTs supported binary nanocomposite with multiple strategies to boost electrochemical activities

Cited by 89 publications

References 51 publications

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La0.85Sr0.15CoO3−δ Nanoparticles for Green EMI Shielding

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La0.85Sr0.15CoO3−δ Nanoparticles for Green EMI Shielding

Gadolinium doped zinc ferrite nanoarchitecture reinforced with a carbonaceous matrix: a novel hybrid material for next-generation flexible capacitors

Effects of sol contents and sintering temperatures on SiO2 coated needled carbon fibre felt composites

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Product

Resources

About

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La_0.85Sr₀.₁₅CoO_3−δ Nanoparticles for Green EMI Shielding

Flexible N-Doped Carbon Nanofiber-Polydimethylsiloxane Composite Containing La_0.85Sr₀.₁₅CoO_3−δ Nanoparticles for Green EMI Shielding

Effects of sol contents and sintering temperatures on SiO₂ coated needled carbon fibre felt composites