Hydrogenation of carbon nanotubes and graphite in liquid ammonia

S. Pekker, J. P. Salvetat, E. Jakab, J. M. Bonard, L. Forró

Research output: Contribution to journalArticle

198 Citations (Scopus)

Abstract

We have prepared hydrogenated single-wall and multiwall carbon nanotubes, as well as graphite, via a dissolved metal reduction method in liquid ammonia. The hydrogenated derivatives are thermally stable up to 400 °C. Above 400 °C, a characteristic decomposition takes place accompanied with the simultaneous formations of hydrogen and a small amount of methane. Transmission electron micrographs show corrugation and disorder of the nanotube walls and the graphite layers due to hydrogenation. The average hydrogen contents determined from the yield of evolved hydrogen correspond to the compositions of C11H for both types of nanotubes and C5H for graphite. Hydrogenation occurred even on the inner tubes of multiwall nanotubes as shown by the chemical composition and the overall corrugation. The thermal stability and structural results suggest the formation of C-H bonds in nanotubes and graphite.

Original languageEnglish
Pages (from-to)7938-7943
Number of pages6
JournalJournal of Physical Chemistry B
Volume105
Issue number33
DOIs
Publication statusPublished - Aug 23 2001

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liquid ammonia
Carbon Nanotubes
Graphite
Ammonia
Nanotubes
Hydrogenation
hydrogenation
Carbon nanotubes
nanotubes
graphite
carbon nanotubes
Hydrogen
Liquids
hydrogen
Methane
Chemical analysis
chemical composition
Thermodynamic stability
thermal stability
methane

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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Hydrogenation of carbon nanotubes and graphite in liquid ammonia. / Pekker, S.; Salvetat, J. P.; Jakab, E.; Bonard, J. M.; Forró, L.

In: Journal of Physical Chemistry B, Vol. 105, No. 33, 23.08.2001, p. 7938-7943.

Research output: Contribution to journalArticle

Pekker, S. ; Salvetat, J. P. ; Jakab, E. ; Bonard, J. M. ; Forró, L. / Hydrogenation of carbon nanotubes and graphite in liquid ammonia. In: Journal of Physical Chemistry B. 2001 ; Vol. 105, No. 33. pp. 7938-7943.
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