The Study by Spectroscopy Method of Carbon Nanostructure in Carbonized Ferrochromic Spinel

Baitimbetova, B. A.; Ryabikin, Yuryi A.; Zashkvara, O. V.

doi:10.1080/00387010701799589

Cited by 2 publications

(6 citation statements)

References 9 publications

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“…IR-Fourier studies show that the absorption bands in the ranges of 1652.2, 1574.7 and 1449.9 cm -1 are due to the absorption of collective modes of carbon nanosystems (multilayer nanotubes, graphenes, fullerenes and nanofibers). In terms of their structure, carbon nanosystems can be considered three-dimensional analogues of aromatic compounds [4,5]. Thus, IR spectroscopic studies confirm the formation of carbon nanosystems in the samples under study, which is in good agreement with literature data [5,6,9,10].…”

Section: Discussionsupporting

confidence: 83%

“…In terms of their structure, carbon nanosystems can be considered three-dimensional analogues of aromatic compounds [4,5]. Thus, IR spectroscopic studies confirm the formation of carbon nanosystems in the samples under study, which is in good agreement with literature data [5,6,9,10]. 5 Б.А.…”

Section: Discussionsupporting

confidence: 81%

“…The spectra of the initial graphite powder and graphene are well described by the authors of [1]. Two absorption maxima were obtained by IR spectroscopy at 1273 and 2373 cm -1 , which we attributed to the C-O-C and C-O 2 bonds in accordance with the data of [5]. The formation of these bonds is due to the oxidation of graphite and the formation of broken carbon-carbon bonds, which increases the reactivity of the resulting graphene.…”

Section: Introductionsupporting

confidence: 86%

“…Based on these data, it can be concluded that vibrations of single carbon-carbon bonds of carbon nanosystems are observed in the ranges of 1320-1652.2 cm -1 [5,6].…”

Section: Discussionmentioning

confidence: 97%

“…and carbonate-carboxylate compounds and polyaromatic condensed systems in the studied samples have been studied and analyzed. With an increase in the time of sonication, numerous single carbon-carbon bonds are formed due to the collective modes of carbon nanostructures, including carbon nanotubes [5,6].…”

Section: Methodsmentioning

confidence: 99%

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The study of carbon nanomaterials by IR-Fourier spectroscopy, obtained by the action of an ultrasonic field on graphite

Baitimbetova¹,

Tolubayev²,

Ryabikin³

et al. 2022

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In this work, the absorption lines corresponding to nanomaterials (nanotubes, nanofibers, graphene), as well as vibrational spectra in the studied samples of graphene structures obtained by processing an ultrasonic field on an aromatic hydrocarbon and pure graphite, are studied by IR-Fourier spectroscopy. With an increase in time in the studied spectra of ultrasonic treatment on pure graphite, absorption bands are observed in the frequency range of ν= 2967,7 cm-1, 2926,1 cm-1, 2853 cm-1, 1449 cm-1, related to stretching and deformation vibrations of the bond C-H of saturated aromatic hydrocarbons. The spectra of carbonyl (carbon) compounds of the C-C bond are also noted in the regions of the absorption bands: 1449,9 cm-1÷1652,6 cm-1. This means that in the IR spectra, with an increase in the time of sonication, the carbon formations of asymmetric stretching vibrations of C-C bonds increase. In these frequency ranges, the absorption bands corresponding to adsorbed benzene are not observed. With an increase in the processing time of the samples, the absorption band of OH hydroxyl groups is not observed. In the samples under study, numerous aromatic carbon-carbon bonds are observed, due to the collective groups of vibrations of carbon nanomaterials (graphene structures, nanofibers, single-layer and multilayer carbon nanotubes, etc.).

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Section: Discussionsupporting

confidence: 83%

Section: Discussionsupporting

confidence: 81%

Section: Introductionsupporting

confidence: 86%

“…Based on these data, it can be concluded that vibrations of single carbon-carbon bonds of carbon nanosystems are observed in the ranges of 1320-1652.2 cm -1 [5,6].…”

Section: Discussionmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

The study of carbon nanomaterials by IR-Fourier spectroscopy, obtained by the action of an ultrasonic field on graphite

Baitimbetova¹,

Tolubayev²,

Ryabikin³

et al. 2022

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Paramagnetic Properties of Carbon Films

Baitimbetova,

Ryabikin,

Rakymetov

et al. 2023

Coatings

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This research paper presents the results of obtaining carbon films on various substrates (quartz, mica, and silicon) at temperatures from 0 °C (initial) to 800 °C through plasma chemical vapor deposition. The carbon films obtained on various films were studied using the method of electron paramagnetic resonance (EPR). EPR measurements were carried out on twenty samples at a perpendicular and parallel arrangement of the sample plane concerning the orientation of the magnetic field. When measuring the resonance conditions by changing the magnetic field, an EPR signal appeared in all of the deposited samples. The paper presents a general view of the EPR spectrum in all of the samples, including the signal intensity, g-factor, line widths, and normalized signal intensity of the carbon films on various substrates at temperatures from 0 °C to 800 °C. Studies show that with an increase in temperature, the normalized intensity of the EPR signal line increases during the deposition of a carbon in all deposited substrates (quartz, mica, and silicon) using the method of plasma decomposition of a mixture of methane and hydrogen.

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The Study by Spectroscopy Method of Carbon Nanostructure in Carbonized Ferrochromic Spinel

Cited by 2 publications

References 9 publications

The study of carbon nanomaterials by IR-Fourier spectroscopy, obtained by the action of an ultrasonic field on graphite

The study of carbon nanomaterials by IR-Fourier spectroscopy, obtained by the action of an ultrasonic field on graphite

Paramagnetic Properties of Carbon Films

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