Characterization of high quality carbon nanotubes synthesized via Aerosol -CVD

Musayeva, Nahida; Abdullayeva, S. H.; Frigeri, C.; Huseynov, Asger B.; Jabbarov, Rasim B.

doi:10.24297/jap.v11i3.6943

Cited by 14 publications

(7 citation statements)

References 49 publications

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“…Starting materials: as starting materials we used MWCNTs obtained by Aerosol CVD method and polymers-Polydimethylsiloxane (PDMS) and epoxy resins. Synthesis technology details of used MWCNTs have been demonstrated in [11] [12]. Cyclohexane and ferrocene in relative concentration of 20 mg/ml have been used as carbon source and catalyst, respectively.…”

Section: Materials and Methods Experimentsmentioning

confidence: 99%

Carbon Nanotubes Dispersion in Polymers by Two-Factor Mechanical Method

Abdullayeva¹,

Huseynov²,

Musayeva³

et al. 2016

AMPC

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The article reports the results on the development of highly optimized two-factor mechanical method of dispersion of multiwalled carbon nanotubes (MWCNTs) in polymer matrixes with the aim of preparing of nanocomposites. The investigation of the MWCNTs and nanocomposites was carried out by using scanning electron microscopy, X-ray diffraction and Raman spectroscopy. The effectiveness of the developed method is demonstrated by comparing the electrical conductivity of MWCNT/polymer nanocomposites prepared on the basis of polydimethylsiloxane (PDMS) and the epoxy resin, using two methods-the known chemical and the proposed one-two-factor mechanical.

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Section: Materials and Methods Experimentsmentioning

confidence: 99%

Carbon Nanotubes Dispersion in Polymers by Two-Factor Mechanical Method

Abdullayeva¹,

Huseynov²,

Musayeva³

et al. 2016

AMPC

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“…В качестве исходного сырья был использован толуол, катализатора -ферроцен. Методика синтеза МУНТ подробно описана в работе [31]. Полученные образцы анализировались с помощью сканирующей электронной микроскопии (SEM) и элементного анализа (EDX).…”

Section: экспериментальная частьunclassified

Aerobic-peroxide oxidation of naphthalene in the presence of transition metal on a nanocarbon carrier

Zeynalov¹,

Naghiyev²,

Huseynov³

et al. 2022

SOCAR Proceedings

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The paper describes the results of aerobic-peroxide catalytic oxidation of naphthalene in the presence of iron-containing multi-walled carbon nanotubes Fe@MWCNT. The active nanocarbon substrate containing α-iron atoms and carbides realizes by the Fenton reaction active formation of active particles and intensive oxidation of the hydrocarbon under rather mild conditions. It was found that at the temperature range 333 - 353K, in the presence of hydrogen peroxide (30% aqueous solution) and Fe@MWCNT (Fe ≈3.7 wt. %), under intense air current, the reaction proceeds without destroying the cyclic structure of the molecule with predominant formation of phthalic anhydride and naphthol. Identification of the functional groups of the main target products was performed by the infrared (IR) spectroscopy. The results obtained can be proposed for further development of such studies and bringing them into compliance with the standards of the industrial process. Keywords: aerobic oxidation of hydrocarbons; oxidation of naphthalene; hydrogen peroxide; multi-walled carbon nanotubes; nanocarbon catalysis; Fenton system, oxygencontaining aromatic compounds.

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“…Synthesis of MWCNTs were carried out in a horizontal reactor (a cylindrical tube of the quartz glass with size: length ¼ 1 m, internal diameter ¼ 33 mm) of an aerosol CVD set up. 25,26 For uniform deposition of CNTs during the synthesis, the electric furnace (length ¼ 0.35 m) was automatically moved along the length of the reactor at a fixed rate of 10 mm/min.…”

Section: Synthesis Of Mwcntsmentioning

confidence: 99%

“…The synthesis of MWCNTs from CyH was conducted at the optimum temperature of 900 C, based on the experimental data of our previous studies. 25,26 The synthesis process was performed at ambient pressure with the duration of 85 min.…”

Section: Synthesis Of Mwcntsmentioning

confidence: 99%

Fabrication and characterization of MWCNT/natural Azerbaijani bentonite electroconductive ceramic composites

Huseynov

Israfilov

Mammadova

et al. 2019

Journal of Composite Materials

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Multi-walled carbon nanotubes have been synthesized by Aerosol-Chemical Vapor Deposition method. Carbon nanotubes firstly have been used as filler in affordable and prevalent natural Azerbaijani bentonite clays for fabrication electroconductive ceramic composites. In this paper, multi-walled carbon nanotubes/natural Azerbaijani bentonite ceramic composites were prepared by two-factor mechanical method and followed by calcination at 1050℃ in an inert atmosphere. The ceramic composites were characterized by scanning electron microscope, atomic force microscope, X-ray diffraction and thermogravimetric-differential-thermal analysis. X-ray diffraction analysis confirmed the presence of two principal components – multi-walled carbon nanotube and bentonite in composites. From the thermogravimetric-differential-thermal data, it was revealed that multi-walled carbon nanotube/ bentonite ceramic composites demonstrate thermo-oxidative stability up to 580–640℃. Scanning electron microscope images demonstrated a sufficiently high dispersibility of carbon nanotubes and satisfactory homogeneity in the composites. Experimental results demonstrated that by increasing the mass fraction of multi-walled carbon nanotubes from 1% to 8% in multi-walled carbon nanotube/bentonite ceramic composites, the electrical conductivity enhances substantially. The enhancement of electrical conductivity of the composites explained the mass fraction of multi-walled carbon nanotubes, as well as the uniform dispersion of multi-walled carbon nanotubes in the bentonite clays. Compared with other 8% multi-walled carbon nanotubes/bentonite ceramic composites, the electrical conductivity of heptane-multi-walled carbon nanotube/Gobu bentonite (σ = 397 S·m−1) and heptane-multi-walled carbon nanotubes/Atyali (σ = 305 S·m−1) composites is 2–5 times higher than the conductivity of composites obtained with cyclohexane carbon nanotubes- cyclohexane-multi-walled carbon nanotube/Atyali (σ = 78 S·m−1), cyclohexane-multi-walled carbon nanotube/Gobu (σ = 111,5 S·m−1). These results can be explained with the structure, the number of layers, purity and diameter distribution, as well as the type and amount of defects in internal and external layers of Hep-multi-walled carbon nanotubes which cause better dispersion in bentonite clays. Due to the high conductivity and high temperature stability, these composites can be used as promising material for fabrication heating elements, electrodes, substrates for microelectronic devices, etc.

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Characterization of high quality carbon nanotubes synthesized via Aerosol -CVD

Cited by 14 publications

References 49 publications

Carbon Nanotubes Dispersion in Polymers by Two-Factor Mechanical Method

Carbon Nanotubes Dispersion in Polymers by Two-Factor Mechanical Method

Aerobic-peroxide oxidation of naphthalene in the presence of transition metal on a nanocarbon carrier

Fabrication and characterization of MWCNT/natural Azerbaijani bentonite electroconductive ceramic composites

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