Synthesis of Carbon Nanoparticles in a Compression Reactor in Atmosphere of Buffer Gases | Sciact - CRIS-система Института катализа

Synthesis of Carbon Nanoparticles in a Compression Reactor in Atmosphere of Buffer Gases Научная публикация

Журнал

Technical Physics
ISSN: 1063-7842 , E-ISSN: 1090-6525

Вых. Данные

Год: 2023, Том: 68, Номер: 1, Страницы: 18-26 Страниц : 9 DOI: 10.1134/s1063784223010024

Ключевые слова

cyclic chemical reactor; adiabatic compression; pyrolysis of hydrocarbons; carbon nanomaterials; buffer gas

Авторы

Ezdin B. ¹ , Vasiljev S. ¹ , Yatsenko D. ^1,3 , Fedorov V. ⁴ , Ivanova M. ⁴ , Kalyada V. ¹ , Pakharukov Yu. ² , Shabiev F. ² , Zarvin A. ¹

Организации

1	Novosibirsk State University, 630090, Novosibirsk, Russia
2	Tyumen State University, 625003, Tyumen, Russia
3	Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
4	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

Информация о финансировании (1)

Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

075-15-2020-797 (13.1902.21.0024)

Physicochemical aspects of the gas-phase synthesis of nanopowders using a cyclic compression reactor are considered. Precursors (methane, ethylene, and acetylene) are compressed under conditions close to adiabatic ones in atmosphere of buffer monatomic gases (argon, helium, and neon). The effect of the pressure in the reactor and precursor/buffer gas volumetric ratio on the composition, morphology, and structure of carbon-containing particles (pyrolysis products) is studied. Complete pyrolysis is observed for all precursors but under different conditions. Thermal decomposition of methane, having the minimum enthalpy of formation, is observed in atmosphere with an argon content of 97.5% at a peak pressure of greater than 10 MPa. Helium shows limited possibilities for thermal relaxation under the conditions for fast reactions (<50 ms): only acetylene, having the maximum enthalpy of formation, is decomposed in the helium atmosphere. The solid reaction products represent black powders with a bulk density of 20–30 mg/cm3. The powders are studied using transmission and scanning electron microscopy, Raman scattering, and X-ray diffraction analysis. The particles represent either hollow or filled globular bulbous structures with a size of up to 100 nm. The X-ray diffraction analysis shows the presence of graphite-like crystallites with sizes of less than 10 nm in all samples. Raman analysis yields predominantly sp2 hybridization of carbon. The cyclic compression method provides wide opportunities for the pyrolysis of hydrocarbons aiming at the production of various carbon structures, which enables for the fine tuning in terms of the yield of carbon nanomaterials of the required morphology for practical use.

Ezdin B. , Vasiljev S. , Yatsenko D. , Fedorov V. , Ivanova M. , Kalyada V. , Pakharukov Y. , Shabiev F. , Zarvin A.
Synthesis of Carbon Nanoparticles in a Compression Reactor in Atmosphere of Buffer Gases
Technical Physics. 2023. V.68. N1. P.18-26. DOI: 10.1134/s1063784223010024 WOS Scopus РИНЦ CAPlusCA OpenAlex

Ездин Б.С. , Васильев С.А. , Яценко Д.А. , Федоров В.Е. , Иванова М.Н. , Каляда В.В. , Пахаруков Ю.В. , Фарид Канафеович Ш. , Зарвин А.Е.
Синтез углеродных наночастиц в реакторе сжатия в атмосфере буферных газов
Сибирский физический журнал. 2022. Т.17. №3. С.29-46. DOI: 10.25205/2541-9447-2022-17-3-29-46 РИНЦ OpenAlex

Поступила в редакцию:	29 апр. 2022 г.
Принята к публикации:	13 сент. 2022 г.
Опубликована в печати:	1 янв. 2023 г.
Опубликована online:	10 июн. 2023 г.

Web of science:	WOS:001004130200002
Scopus:	2-s2.0-85161360204
РИНЦ:	54384087
Chemical Abstracts:	2023:1202261
Chemical Abstracts (print):	183:215779
OpenAlex:	W4380154049

БД	Цитирований
Scopus	2
Web of science	2
OpenAlex	3
РИНЦ	2