COMPARATIVE ANALYSIS OF PRODUCTS OF ELECTRIC ARC SYNTHESIS USING GRAPHITE OF DIFFERENT GRADES
Zolotarenko O. Rudakova E.P. Zagorulko I.V. Akhanova N.Y. Zolotarenko A. Schur D.V. Gabdullin M.T. Ualkhanova M. Myronenko T.V. Chymbai M.V. Dubrova O.E.
12 March 2023National Academy of Sciences of Ukraine
Ukrainian Journal of Physics
2023#68Issue 157 - 69 pp.
Carbon nanostructures (CNSs) of different types (carbon nanotubes, fullerenes, and fullerene-like structures) are obtained by the method of electric arc evaporation of SIGE and FGDG-7 graphites in an inert gas (He). A comparative analysis of the characteristics of synthesized CNSs is performed. The optimal technological conditions for the synthesis of CNSs from graphite anode electrodes of compara-ble grades (SIGE and FGDG-7) are determined. Deposits of the plasma chemical synthesis have been studied. The structure of the synthesized carbon materials is studied by scanning and transmission electron microscopies, and it is shown that carbon nanotubes are formed during the evaporation of SIGE brand graphite even without the use of a catalyst. Differential-thermal, thermogravimetric and differential thermogravimetric analyzes are carried out, and the temperatures of the beginning of the interaction of the formed CNSs with oxygen in air are established. According to data of the photo-spectral analysis of the synthesis products, it is shown that the fullerene component obtained by the evaporation of SIGE brand graphite contains 10–12% of C60 and C70 fullerenes, which is not inferior to similar indicators of MPG-7 brand graphite. In view of the cheapness of SIGE brand graphite as compared to FGDG-7 graphite brand, it can be argued that carbon nanostructures synthesized from SIGE brand graphite have a lower cost. This fact is important for the synthesis of carbon nanos-tructures used as fillers in modern composites. In addition, the synthesis of low-cost fullerene and fullerene-like molecules is a great advantage for their study and use in modern materials, because new modern advanced nanotechnologies on the basis of fullerenes are beginning today to be created.
carbon nanostructures (CNSs) , carbon nanotubes (CNTs) , electric arc synthesis , fullerenes , graphene , graphite grade MPG-7 , graphite grade SIGE , nanocomposites , nanotechnology , plasma
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Chuiko Institute of Surface Chemistry, Nat. Acad. of Sci. of Ukraine, 17, General Naumov Str., Kyiv, 03164, Ukraine
Frantsevich Institute for Problems of Materials Science, Nat. Acad. of Sci. of Ukraine, 3, Krzhizhanovskogo Str., Kyiv, 03142, Ukraine
G.V. Kurdyumov Institute for Metal Physics, Nat. Acad. of Sci. of Ukraine, 36, Academician Vernadsky Blvd., Kyiv, 03142, Ukraine
Kazakhstan-British Technical University, 59, Tole bi Str., Almaty, 050000, Kazakhstan
National Nanotechnology Open Laboratory (NNOL), al-Farabi Kazakh National University, 71, al-Farabi Ave., Almaty, 050040, Kazakhstan
The Institute of Applied Physics, Nat. Acad. of Sci. of Ukraine, 58, Petropavlivska Str., Sumy, 40000, Ukraine
Chuiko Institute of Surface Chemistry
Frantsevich Institute for Problems of Materials Science
G.V. Kurdyumov Institute for Metal Physics
Kazakhstan-British Technical University
National Nanotechnology Open Laboratory (NNOL)
The Institute of Applied Physics
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