The synthesis of few-layered graphene by the arc discharge sputtering of a Si-C electrode

Смовж, Д. В.; Kostogrud, I A; Sakhapov, S. Z.; Зайковский, А. В.; Новопашин, С. А.

doi:10.1016/j.carbon.2016.10.094

Cited by 32 publications

(15 citation statements)

References 34 publications

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“…The similar nanowire structures with SiC and Si 3 N 4 cores and SiOx amorphous layers were obtained by arc‐discharge sputtering of Si, SiO 2 , C mixture . As previously established, when electric arc sputtering a mixture of pure silicon with graphite powder, plasma‐chemical processes occurring during discharge lead to the formation of silicon carbide nanoparticles on the graphene planes …”

Section: Introductionsupporting

confidence: 72%

Graphene, SiC and Si Nanostructures Synthesis During Quartz Pyrolysis in Arc‐Discharge Plasma

Зайковский

Kardash

Kolesov

et al. 2019

Physica Status Solidi (a)

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Composites based on graphene and nanosized silicon have recently been of interest in various applications. This paper reports a new method of synthesising a graphene-nano silicon composite material by spraying a mixture of quartz-graphite using an electric arc. The structure and composition of the materials obtained depends on the synthesis conditions. The quality of the graphene structure depends on the concentration of quartz in the load. Higher SiO 2 content leads to the production of more structured graphene. In this case, silicon is present in the materials in the form of carbide nanoparticles deposited on graphene planes. When sputtering pure quartz contained in the cavity of the graphite anode, silicon whiskers form during the synthesis process. The content of the silicon structure depends on the arc current and the sputtering rate of the anode material. The mechanisms that lead to the formation of the graphene structure and silicon whiskers in the condensation process of the products of the electric arc spraying of the anode material are considered.

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Section: Introductionsupporting

confidence: 72%

Graphene, SiC and Si Nanostructures Synthesis During Quartz Pyrolysis in Arc‐Discharge Plasma

Зайковский

Kardash

Kolesov

et al. 2019

Physica Status Solidi (a)

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“…The choice of annealing temperature for modification of composites is based on the fact that amorphous carbon burns out under similar conditions at long exposure. 34,36 In the Raman spectra of samples, a set of modes typical for carbon nanomaterials is found. These modes are located at 1581, 1332, and 2688 cm −1 and named the G-, D-, 2D-mode, respectively (Figure 4).…”

Section: Resultsmentioning

confidence: 99%

“…36 Commonly, the additive is inside the matrix or on its surface in the form of individual crystalline nanoparticles or carbides. 34,36,37 Nanoparticles can be exposed or encapsulated in the carbon (graphite) matrix. 38 Graphitization of the layers surrounding the particle is typical for materials that form metal-like carbides.…”

Section: Introductionmentioning

confidence: 99%

“…Electric‐arc synthesis is a well‐scalable, single‐stage, and low‐cost method for producing of metal‐carbon nanocomposites. By varying the discharge parameters and adding catalytic complexes to the system, 29 it is possible to obtain all existing allotropic carbon modifications: diamonds, 30 onion‐like structures, 31 fullerenes, 32 nanotubes (CNTs), 33 graphene, 34 amorphous carbon, and so on 35 . Moreover, the electric arc can be used for the synthesis of composite materials consisting of carbon and metals, oxides, or carbides 36 .…”

Section: Introductionmentioning

confidence: 99%

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Supercapacitor behavior of carbon‐manganese oxides nanocomposites synthesized by carbon arc

et al. 2020

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The Mn-CO composites were synthesized by the electric-arc discharge method. The composite materials were obtained by spraying of graphite electrode with the addition of MnO 2. The morphology of Mn-CO composites formed during electric-arc spraying of metal-carbon electrodes in various buffer gases (N 2 and He) and the effect of their subsequent annealing in an oxygen-containing atmosphere was studied. It was experimentally determined that MnO x (MnO, Mn 3 O 4) nanoparticles are mainly formed in N 2 atmosphere, and Mn 7 C 3 carbide nanoparticles are formed in He atmosphere. This phenomenon is explained by different cooling rates of the formed composites. With further annealing of materials, partial oxidation of nanoparticles and graphitization of the carbon matrix occur due to the thermal effect of the oxidation reaction. According to the study of electrochemical activity of materials in the 1 M KOH aqueous electrolyte, the materials with a higher MnO content and a higher degree of soot graphitization have the highest electrochemical capacity of 135 Fg −1 .

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“…Various parameters of arc discharge synthesis determine the structural features of the carbon material such as fullerenes , graphene , carbon nanotubes etc. The most common product of arc discharge sputtering of the graphite electrodes is carbon soot, which consists of sp 2 ‐, sp 3 ‐hybridised carbon atoms .…”

Section: Introductionmentioning

confidence: 99%

Electroconductive and magnetic properties of pure carbon soot produced in arc discharge: Regimes of various buffer gas pressure

Зайковский

Новопашин

2017

Physica Status Solidi (a)

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The electroconductive and magnetic properties of nanomaterials containing carbon nanoforms synthesised for electrocatalytic, electrochromic and ferrofluid applications, etc., are of interest to researchers. This article aims to understand the physical effects influencing the electroconductive and magnetic properties of materials synthesised by arc discharge. The nanomaterial formation processes leading to the formation of magnetic and electroconductive structures are also discussed. Arc discharge between graphitic electrodes results in the emergence of a fan-shaped jet of helium and carbon. The gasdynamic and temperature parameters of the jet depend on the parameters of the arc discharge and the buffer gas. Variations in the parameters of the carbon vapour flow change the kinetics of carbon condensation, leading to variations in the morphology and structure of the carbon material. The main external parameter of the synthesis (buffer gas pressure) was varied in the study, and correlations between the intensity ratio of the D to G peaks on the Raman spectrum and the electrical conductivity and the magnetic susceptibility values were found. During the synthesis, nanographite structures were formed. However, the formation of an amorphous carbon structure on the free 'zig-zag' edges of the graphite fragments reduced the magnetic susceptibility, the electrical conductivity and the ID/IG ratio.The amorphous carbon layer was deposited on the graphite structure, which reduces magnetic susceptibility, electrical conductivity and the ID/IG ratio. conditions leads to changing parameters in the discharge plasma and the fan-shaped jet. A previous study [4] demonstrated that variation in external discharge conditions allows the fullerene yield to reach 15% of the produced carbon soot.Arc discharge has been widely used to synthesize highquality carbon nanotubes (CNTs) [5]. The first time CNTs were discovered in the products of the fullerene arc [6]. Since then, arc discharge CNT synthesis has been developed to produce single-walled CNTs [7] and multiwalled CNTs [8]. CNT synthesis usually includes the production of metal catalyst nanoparticles consisting of Ni, Y [7], Fe [8] etc.

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The synthesis of few-layered graphene by the arc discharge sputtering of a Si-C electrode

Cited by 32 publications

References 34 publications

Graphene, SiC and Si Nanostructures Synthesis During Quartz Pyrolysis in Arc‐Discharge Plasma

Graphene, SiC and Si Nanostructures Synthesis During Quartz Pyrolysis in Arc‐Discharge Plasma

Supercapacitor behavior of carbon‐manganese oxides nanocomposites synthesized by carbon arc

Electroconductive and magnetic properties of pure carbon soot produced in arc discharge: Regimes of various buffer gas pressure

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