The low-temperature specific heat of MWCNTs

V. V. Sumarokov, A. Jeżowski, D. Szewczyk, M. I. Bagatski, M. S. Barabashko, A. N. Ponomarev, V. L. Kuznetsov, S. I. Moseenkov

Результат исследований: Материалы для журналаСтатья

Выдержка

The specific heat of multi-walled carbon nanotubes (MWCNTs) with a low defectiveness and with a low content of inorganic impurities has been measured in the temperature range from 1.8 to 275 K by the thermal relaxation method. The elemental composition and morphology of the MWCNTs were determined using scanning electron microscopy analysis and energy dispersion x-ray spectroscopy. The MWCNTs were prepared by chemical catalytic vapor deposition and have mean diameters from 7 nm up to 18 nm and lengths in some tens of microns. MWCNTs purity is over 99.4 at.%. The mass of the samples ranged from 2–4 mg. It was found that the temperature dependence of the specific heat of the MWCNTs differs significantly from other carbon materials (graphene, bundles of SWCNTs, graphite, diamond) at low temperatures. The specific heat of MWCNTs systematically decreases with increasing diameter of the tubes at low temperatures. The character of the temperature dependence of the specific heat of the MWCNTs with different diameters demonstrates the manifestation of different dimensions from 1D to 3D, depending on the temperature regions. The crossover temperatures are about 6 and 40 K. In the vicinity of these temperatures, a hysteresis is observed.

Язык оригиналаАнглийский
Страницы (с-по)395-403
Число страниц9
ЖурналFizika Nizkikh Temperatur
Том45
Номер выпуска3
DOI
СостояниеОпубликовано - 1 мар 2019

Отпечаток

carbon nanotubes
specific heat
temperature dependence
temperature
x ray spectroscopy
bundles
crossovers
graphene
purity
graphite
diamonds
hysteresis
vapor deposition
tubes
impurities
scanning electron microscopy
carbon
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Цитировать

Sumarokov, V. V., Jeżowski, A., Szewczyk, D., Bagatski, M. I., Barabashko, M. S., Ponomarev, A. N., ... Moseenkov, S. I. (2019). The low-temperature specific heat of MWCNTs. Fizika Nizkikh Temperatur, 45(3), 395-403. https://doi.org/10.1063/1.5090094

The low-temperature specific heat of MWCNTs. / Sumarokov, V. V.; Jeżowski, A.; Szewczyk, D.; Bagatski, M. I.; Barabashko, M. S.; Ponomarev, A. N.; Kuznetsov, V. L.; Moseenkov, S. I.

В: Fizika Nizkikh Temperatur, Том 45, № 3, 01.03.2019, стр. 395-403.

Результат исследований: Материалы для журналаСтатья

Sumarokov, VV, Jeżowski, A, Szewczyk, D, Bagatski, MI, Barabashko, MS, Ponomarev, AN, Kuznetsov, VL & Moseenkov, SI 2019, 'The low-temperature specific heat of MWCNTs', Fizika Nizkikh Temperatur, том. 45, № 3, стр. 395-403. https://doi.org/10.1063/1.5090094
Sumarokov VV, Jeżowski A, Szewczyk D, Bagatski MI, Barabashko MS, Ponomarev AN и соавт. The low-temperature specific heat of MWCNTs. Fizika Nizkikh Temperatur. 2019 Март 1;45(3):395-403. https://doi.org/10.1063/1.5090094
Sumarokov, V. V. ; Jeżowski, A. ; Szewczyk, D. ; Bagatski, M. I. ; Barabashko, M. S. ; Ponomarev, A. N. ; Kuznetsov, V. L. ; Moseenkov, S. I. / The low-temperature specific heat of MWCNTs. В: Fizika Nizkikh Temperatur. 2019 ; Том 45, № 3. стр. 395-403.
@article{75ba2d6946924350a90968e8289e97f6,
title = "The low-temperature specific heat of MWCNTs",
abstract = "The specific heat of multi-walled carbon nanotubes (MWCNTs) with a low defectiveness and with a low content of inorganic impurities has been measured in the temperature range from 1.8 to 275 K by the thermal relaxation method. The elemental composition and morphology of the MWCNTs were determined using scanning electron microscopy analysis and energy dispersion x-ray spectroscopy. The MWCNTs were prepared by chemical catalytic vapor deposition and have mean diameters from 7 nm up to 18 nm and lengths in some tens of microns. MWCNTs purity is over 99.4 at.{\%}. The mass of the samples ranged from 2–4 mg. It was found that the temperature dependence of the specific heat of the MWCNTs differs significantly from other carbon materials (graphene, bundles of SWCNTs, graphite, diamond) at low temperatures. The specific heat of MWCNTs systematically decreases with increasing diameter of the tubes at low temperatures. The character of the temperature dependence of the specific heat of the MWCNTs with different diameters demonstrates the manifestation of different dimensions from 1D to 3D, depending on the temperature regions. The crossover temperatures are about 6 and 40 K. In the vicinity of these temperatures, a hysteresis is observed.",
keywords = "Carbon nanotubes, Low-dimensional systems, MWCNTs, Specific heat",
author = "Sumarokov, {V. V.} and A. Jeżowski and D. Szewczyk and Bagatski, {M. I.} and Barabashko, {M. S.} and Ponomarev, {A. N.} and Kuznetsov, {V. L.} and Moseenkov, {S. I.}",
year = "2019",
month = "3",
day = "1",
doi = "10.1063/1.5090094",
language = "English",
volume = "45",
pages = "395--403",
journal = "Soviet Journal of Low Temperature Physics (English Translation of Fizika Nizkikh Temperatur)",
issn = "0132-6414",
publisher = "American Institute of Physics Publising LLC",
number = "3",

}

TY - JOUR

T1 - The low-temperature specific heat of MWCNTs

AU - Sumarokov, V. V.

AU - Jeżowski, A.

AU - Szewczyk, D.

AU - Bagatski, M. I.

AU - Barabashko, M. S.

AU - Ponomarev, A. N.

AU - Kuznetsov, V. L.

AU - Moseenkov, S. I.

PY - 2019/3/1

Y1 - 2019/3/1

N2 - The specific heat of multi-walled carbon nanotubes (MWCNTs) with a low defectiveness and with a low content of inorganic impurities has been measured in the temperature range from 1.8 to 275 K by the thermal relaxation method. The elemental composition and morphology of the MWCNTs were determined using scanning electron microscopy analysis and energy dispersion x-ray spectroscopy. The MWCNTs were prepared by chemical catalytic vapor deposition and have mean diameters from 7 nm up to 18 nm and lengths in some tens of microns. MWCNTs purity is over 99.4 at.%. The mass of the samples ranged from 2–4 mg. It was found that the temperature dependence of the specific heat of the MWCNTs differs significantly from other carbon materials (graphene, bundles of SWCNTs, graphite, diamond) at low temperatures. The specific heat of MWCNTs systematically decreases with increasing diameter of the tubes at low temperatures. The character of the temperature dependence of the specific heat of the MWCNTs with different diameters demonstrates the manifestation of different dimensions from 1D to 3D, depending on the temperature regions. The crossover temperatures are about 6 and 40 K. In the vicinity of these temperatures, a hysteresis is observed.

AB - The specific heat of multi-walled carbon nanotubes (MWCNTs) with a low defectiveness and with a low content of inorganic impurities has been measured in the temperature range from 1.8 to 275 K by the thermal relaxation method. The elemental composition and morphology of the MWCNTs were determined using scanning electron microscopy analysis and energy dispersion x-ray spectroscopy. The MWCNTs were prepared by chemical catalytic vapor deposition and have mean diameters from 7 nm up to 18 nm and lengths in some tens of microns. MWCNTs purity is over 99.4 at.%. The mass of the samples ranged from 2–4 mg. It was found that the temperature dependence of the specific heat of the MWCNTs differs significantly from other carbon materials (graphene, bundles of SWCNTs, graphite, diamond) at low temperatures. The specific heat of MWCNTs systematically decreases with increasing diameter of the tubes at low temperatures. The character of the temperature dependence of the specific heat of the MWCNTs with different diameters demonstrates the manifestation of different dimensions from 1D to 3D, depending on the temperature regions. The crossover temperatures are about 6 and 40 K. In the vicinity of these temperatures, a hysteresis is observed.

KW - Carbon nanotubes

KW - Low-dimensional systems

KW - MWCNTs

KW - Specific heat

UR - http://www.scopus.com/inward/record.url?scp=85062331757&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85062331757&partnerID=8YFLogxK

U2 - 10.1063/1.5090094

DO - 10.1063/1.5090094

M3 - Article

AN - SCOPUS:85062331757

VL - 45

SP - 395

EP - 403

JO - Soviet Journal of Low Temperature Physics (English Translation of Fizika Nizkikh Temperatur)

JF - Soviet Journal of Low Temperature Physics (English Translation of Fizika Nizkikh Temperatur)

SN - 0132-6414

IS - 3

ER -