Features of the synthesis of straight and spiral carbon nanotubes by the pyrolytic method
ОСОБЛИВОСТІ СИНТЕЗУ ПРЯМИХ ТА СПІРАЛЬНИХ ВУГЛЕЦЕВИХ НАНОТРУБОК ПІРОЛІТИЧНИМ МЕТОДОМ
Zolotarenko O.I.D. Zolotarenko An.D. Rudakova E.P. Akhanova N.Y. Ualkhanova M. Schur D.V. Gabdullin M.T. Myronenko T.V. Chymbai M.V. Zagorulko I.V. Havryliuk O.O.
2023Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
Himia, Fizika ta Tehnologia Poverhni
2023#14Issue 2191 - 209 pp.
The goal of the research work was the pyrolytic synthesis of straight and spiral carbon nanotubes of approximately the same diameter, as well as their comprehensive analysis. To solve the given problem, a new installation for the pyrolytic synthesis of carbon nanostructures (CNS) with a fusion reactor, which for each fusion process can have its own angle relative to the classical horizontal position of the reactor axis. This reactor made it possible to develop a method for obtaining conglomerates of spiral-shaped multi-walled carbon nanotubes with a diameter of 15–60 nm and to synthesize straight multi-walled carbon nanotubes with a diameter of 5 to 60 nm. The research of pyrolytic synthesis of carbon nanostructures in a vertical reactor allows to work out the technology of purposeful synthesis of nanotubes that have a spiral shape with a certain diameter and pitch of the turn. As part of the work, a new mechanism for the formation of spiral multi-walled carbon nanotubes is also considered and proposed, which is important for their further industrial synthesis and their use in related composites. A scheme is proposed of conditions for the synthesis of carbon nanostructures by the pyrolytic method. Thermal analysis was carried out in the work, which recorded the presence of two different structures with low thermal stability (probably amorphous carbon and higher hydrocarbons). When using scanning and transmission electron microscopy, the formation of spiral nanofibers with a diameter of 15–60 nm in the vertical position of the reactor was recorded, and in the horizontal position of the reactor, the formation of straight and slightly curved MWCTs with a diameter of nanofibers from 5 to 60 nm was found. Raman spectroscopy confirms the presence of multi-layered carbon tubular formation, i.e. MWCT, in both synthesis products.
carbon nanomaterials , carbon nanostructures , carbon nanotubes , pyrolysis , quartz reactor , spiral multi-walled carbon nanotubes , straight multi-walled carbon nanotubes
Text of the article Перейти на текст статьи
Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine, 17 General Naumov Str., Kyiv, 03164, Ukraine
Frantsevich Institute for Problems of Materials Science of National Academy of Sciences of Ukraine, 3 Krzhizhanovskogo Str., Kyiv, 03142, Ukraine
Kazakhstan-British Technical University, 59 Tole bi Str., Almaty, 050000, Kazakhstan
National Nanotechnology Open Laboratory, al-Farabi Kazakh National University, 71 al-Farabi Ave., Almaty, 050040, Kazakhstan
G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine, 36 Academician Vernadsky Blvd., Kyiv, 03142, Ukraine
Institute of Applied Physics of National Academy of Sciences of Ukraine, 58 Petropavlivska Str., Sumy, 40000, Ukraine
Chuiko Institute of Surface Chemistry of National Academy of Sciences of Ukraine
Frantsevich Institute for Problems of Materials Science of National Academy of Sciences of Ukraine
Kazakhstan-British Technical University
National Nanotechnology Open Laboratory
G.V. Kurdyumov Institute for Metal Physics of National Academy of Sciences of Ukraine
Institute of Applied Physics of National Academy of Sciences of Ukraine
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026