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Thermodynamic Properties and Similarity of Stacked-cup Multiwall Carbon Nanotubes and Graphite

Published

Author(s)

Yauheni Paulechka, Gennady J. Kabo, Andrey V. Blokhin, Olga Voitkevich, Tatsiana Liavitskaya, Andrey G. Kabo

Abstract

Heat capacity of stacked-cup multiwalled carbon nanotubes (CNT) was measured in an adiabatic calorimeter over the temperature range (5 to 370) K. Results are compared with literature data on various samples of CNT and other carbon allotropes. The relatively large scatter of the heat-capacity data for CNT is discussed. The energy of combustion for multiwalled CNT (MCNT) was determined by combustion calorimetry and the enthalpy of formation was found from to be fHm = (0.6  0.9) kJ∙mol–1. It is demonstrated that the thermodynamic properties of MCNT at T > 200 K are close to those of graphite. Equilibria of the MCNT synthesis were considered.
Citation
Journal of Chemical and Engineering Data
Volume
61
Issue
11

Keywords

carbon nanotubes, adiabatic calorimetry, combustion calorimetry

Citation

Paulechka, Y. , Kabo, G. , Blokhin, A. , Voitkevich, O. , Liavitskaya, T. and Kabo, A. (2016), Thermodynamic Properties and Similarity of Stacked-cup Multiwall Carbon Nanotubes and Graphite, Journal of Chemical and Engineering Data, [online], https://doi.org/10.1021/acs.jced.6b00525 (Accessed April 18, 2024)
Created September 29, 2016, Updated November 10, 2018