Electrodischarge technology and equipment to produce new carbon nanomaterials

Кускова, Н. И.; Dubovenko, K.V.; Петриченко, Сергей Владимирович; Tsolin, P. L.; Чабан, С. О.

doi:10.3103/s1068375513030095

Cited by 5 publications

(4 citation statements)

References 4 publications

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“…The method of high-voltage breakdown of hydrocarbons to obtain nanocarbon is relatively simple to implement. In [26], the basics of a continuous, waste-free electric discharge technology for obtaining nanocarbon are considered. The difference between this technology and the previously proposed electric discharge methods is the application of the flow mode, the working fluid circulates in a closed hydraulic system.…”

Section: Results Of the Analysis Of Mass Yield Of Nanocarbonmentioning

confidence: 99%

“…Work [26] reports an original sequence of operations for obtaining carbon nanomaterials. This sequence includes the stage of separation of the obtained nanomaterial into various allotropic forms of carbon or composites by the methods of centrifugation, magnetic separation, filtration, and high-voltage electrophoresis.…”

Section: Results Of the Analysis Of Mass Yield Of Nanocarbonmentioning

confidence: 99%

“…The experiment was carried out on the installation described in [26]. As a result of previous experiments, it was observed that the removal of the mixture of gases formed as a result of high-voltage breakdown from the working area of the reactor is a necessary action to ensure stable conditions for high-voltage processing of liquid hydrocarbons.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Synthesis of nanocarbon by high-voltage breakdown of hydrocarbons

Kuskova,

Malyushevskaya,

Prystash

et al. 2023

EEJET

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The object of research is the mechanisms of synthesis of nanocarbon structures in the process of electric high-voltage breakdown of hydrocarbons. The problem to be solved is the purposeful synthesis of various types of nanocarbon with small losses of raw materials. Mechanisms of nanocarbon formation in the process of high-voltage electric breakdown of hydrocarbons have been established. It is shown that a high-voltage breakdown leads to a cascade of chemical transformations. As a result of transformations, lower gaseous hydrocarbons are formed due to the destruction of molecules and higher ones – as a result of polymerization, and as a result of dehydrocyclization and polymerization with the participation of metal catalysts – various carbon nanostructures. The possibility of targeted synthesis of fullerene-like structures, nanotubes with diameters from 10 to 50 nm, nanofibers, and films is demonstrated. Experimental studies have confirmed that the qualitative and quantitative composition of nanocarbon can be varied in a wide range. With an increase in the number of carbon atoms or the number of C–C bonds in the raw material molecules, other things being equal, the practical yield of solid nanocarbon increases. It was determined that the synthesis of structured nanocarbon from a mixture of hydrocarbon gases, formed as a result of high-voltage breakdown of liquid hydrocarbons, actively occurs on the nickel-chromium catalytic surface. An increase in the area of the catalytic deposition surface leads to an increase in the yield of nanocarbon. The study of the ability of the obtained nanocarbon samples to absorb electromagnetic radiation confirmed the potential of the method of high-voltage breakdown of hydrocarbons for the synthesis of materials that weaken electromagnetic radiation at a frequency of 25 to 38 GHz. The greatest weakening is observed for samples consisting mainly of carbon nanotubes and nickel nanoparticles

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Section: Results Of the Analysis Of Mass Yield Of Nanocarbonmentioning

confidence: 99%

Section: Results Of the Analysis Of Mass Yield Of Nanocarbonmentioning

confidence: 99%

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Synthesis of nanocarbon by high-voltage breakdown of hydrocarbons

Kuskova,

Malyushevskaya,

Prystash

et al. 2023

EEJET

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“…It can be clearly seen in Figure 2b that in the structure consists of a core with a size of ∼5 nm, which is surrounded by shell that consists of ∼5 layers with a distance of (0.332 ± 0.001) nm between them (graphite interlayer distance is 0.3354 nm). Such a "core-shell" structure is characteristic of OLC [13]. Electric discharges are inevitably accompanied by electrode erosion and, as a result, by inclusion of electrode material metal particles into the products used for synthesis.…”

Section: Edt Of Organic Liquidsmentioning

confidence: 99%

Electric discharge method of synthesis of carbon and metal–carbon nanomaterials

Кускова¹,

Syzonenko²,

Тоrpakov³

2020

High Temperature Materials and Processes

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The current state and prospective of electric discharge methods of synthesis of carbon and metal–carbon nanomaterials (CNMs) in different areas of science, technology and industry are considered in the present paper. It was shown that as a result of electric discharge treatment of liquid hydrocarbons, the productivity of CNMs (namely, onion-like carbon, carbon nanotubes, carbon nanofibers and carbon thin films) in terms of the percentage of carbon, released from initial liquid as a nanomaterial, was 6.1% for pentane, 10.2% for hexane, 8.7% for cyclopentane, 14.4% for cyclohexane, 12.0% for benzene and 16.8% for kerosene. Component and phase composition of obtained products depends on the electrode material and composition of initial hydrocarbon liquid.

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The High-Voltage Electrical Engineering Systems of Gaseous Hydrocarbons Electro-Discharge Processing Design Principles

Vinnychenko¹,

Nazarova²

2019

2019 IEEE 39th International Conference on Electronics and Nanotechnology (ELNANO)

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Electrodischarge technology and equipment to produce new carbon nanomaterials

Cited by 5 publications

References 4 publications

Synthesis of nanocarbon by high-voltage breakdown of hydrocarbons

Synthesis of nanocarbon by high-voltage breakdown of hydrocarbons

Electric discharge method of synthesis of carbon and metal–carbon nanomaterials

The High-Voltage Electrical Engineering Systems of Gaseous Hydrocarbons Electro-Discharge Processing Design Principles

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