Abstract: 129Xe NMR spectroscopy has been used to study the adsorption of Xe on multi-wall carbon nanotubes (MWCNT). The results obtained have shown the 129Xe NMR ability to probe the intercrystalline (aggregate) and the inner porosity of CNT. In particular, the effects on porosity of tubes openings by hydrogen exposure and of ball milling were examined. Dramatic changes observed in the 129Xe NMR spectra after moderate ball milling of MWCNTs were attributed to the destruction of the initial intercrystalline pore structure and to the Xe access inside the nanotubes. To examine the exchange dynamics the mixture of as-made and milled MWCNTs was studied with one- and two-dimensional (1D and 2D) 129Xe NMR. The exchange between the interior of milled nanotubes and the aggregate pores of as-made MWCNTs was fast on the NMR acquisition time scale. The Xenon exchange between the interior of the as-made MWCNTs and the large aggregate pores occurred on a longer time scale of 10 ms, as was established by 2D 129Xe NMR exchange spectroscopy. Variable temperature 129Xe NMR data were also discussed and analyzed in terms of the fast exchange approximation.

Cite: Romanenko K.V. , Fonseca A. , Dumonteil S. , Nagy J.B. , d’Espinose de Lacaillerie J. , Lapina O.B. , Fraissard J.
129Xe NMR Study of Xe Adsorption on Multiwall Carbon Nanotubes
Solid State Nuclear Magnetic Resonance. 2005. V.28. N2-4. P.135-141. DOI: 10.1016/j.ssnmr.2005.07.004 WOS Scopus РИНЦ ANCAN PMID OpenAlex

Dates:

Submitted:	May 30, 2005
Published online:	Aug 18, 2005
Published print:	Sep 1, 2005

Identifiers:

Web of science:	WOS:000234325100009
Scopus:	2-s2.0-29144519724
Elibrary:	13488175
Chemical Abstracts:	2005:1320899
Chemical Abstracts (print):	145:15399
PMID:	16102946
OpenAlex:	W2024005665

Citing:

DB	Citing
Web of science	32
Scopus	33
Elibrary	33
OpenAlex	30

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