Size Effects in the Heat Capacity of Modified MWCNTs | Sciact - CRIS-система Института катализа

Size Effects in the Heat Capacity of Modified MWCNTs Научная публикация

Журнал

Thermal Science and Engineering Progress
, E-ISSN: 2451-9049

Вых. Данные

Год: 2021, Том: 26, Номер статьи : 101097, Страниц : 6 DOI: 10.1016/j.tsep.2021.101097

Ключевые слова

Carbon nanotubes; MWCNTs; Heat capacity; Effects of dimensionality and size

Авторы

Bagatskii M.I. ¹ , Jeżowski A. ² , Szewczyk D. ² , Sumarokov V.V. ¹ , Barabashko M.S. ^1,5 , Kuznetsov V.L. ^3,4 , Moseenkov S.I. ³ , Ponomarev A.N. ⁶

Организации

1	B. Verkin Institute for Low Temperature Physics and Engineering of NASU, 47 Nauky Ave., 61103 Kharkov, Ukraine
2	W. Trzebiatowski Institute of Low Temperature and Structure Research of Polish Academy of Sciences, P.O. Box 1410, 50-950 Wroclaw, Poland
3	Boreskov Institute of Catalysis, 5 Lavrentiev Ave., 630090 Novosibirsk, Russia
4	National Research Tomsk State University, 36 Lenin Ave., 634050 Tomsk, Russia
5	National Research Tomsk Polytechnic University, 30 Lenin Ave., 634050 Tomsk, Russia
6	Institute of Strength Physics and Materials Science of SB RAS, 2/4 Academicheskii Ave., 634055 Tomsk, Russia

Информация о финансировании (3)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	III.23.2.10 (221040800115-8)
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	ГЗ-2021-2023
3	National Research Foundation of Ukraine	197/02.2020

Carbon nanomaterials with unique physical and chemical properties find practical applications in various fields, such as in new composite materials, nanoelectronics, medicine, etc. The efficiency of using MWCNTs (multiwalled carbon nanotubes) depends on their morphology, structure, the presence of impurities and defects. In this work, the influence of defects and geometric sizes of CVD MWCNTs on their heat capacity was experimentally studied. The heat capacity of MWCNTs modified by grinding and oxidation with different average outer diameters (7.2 and 18 nm) was measured by the thermal relaxation method in the temperature range from 1.8 to 275 K. The effects of size and dimensionality were found. The character of the temperature dependences of the specific heat of ground and ground-oxidized MWCNTs with various diameters differs fundamentally below ≈140 K. The discovered effects are discussed.

Bagatskii M.I. , Jeżowski A. , Szewczyk D. , Sumarokov V.V. , Barabashko M.S. , Kuznetsov V.L. , Moseenkov S.I. , Ponomarev A.N.
Size Effects in the Heat Capacity of Modified MWCNTs
Thermal Science and Engineering Progress. 2021. V.26. 101097 :1-6. DOI: 10.1016/j.tsep.2021.101097 WOS Scopus РИНЦ CAPlus OpenAlex

Поступила в редакцию:	23 дек. 2020 г.
Принята к публикации:	28 сент. 2021 г.
Опубликована online:	3 окт. 2021 г.
Опубликована в печати:	1 дек. 2021 г.

Web of science:	WOS:000713392900001
Scopus:	2-s2.0-85122726180
РИНЦ:	48127910
Chemical Abstracts:	2021:2313749
OpenAlex:	W3205773849

БД	Цитирований
Web of science	8
РИНЦ	6
Scopus	11
OpenAlex	9