Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low Pressures

We present an experimental study adsorption of molecular gases (N2, H2, O2, CH4, C2H4, and C2H6) on multiwalled carbon nanotubes (MWCNTs) and MWCNT doped with Ag at low temperatures (35 K) and pressures (10−6 Torr) using the temperature programmed desorption technique. Our results show that the des...

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Main Authors: M. Barberio, P. Barone, F. Stranges, R. A. Romano, F. Xu, A. Bonanno
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2014/816193
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author M. Barberio
P. Barone
F. Stranges
R. A. Romano
F. Xu
A. Bonanno
author_facet M. Barberio
P. Barone
F. Stranges
R. A. Romano
F. Xu
A. Bonanno
author_sort M. Barberio
collection DOAJ
description We present an experimental study adsorption of molecular gases (N2, H2, O2, CH4, C2H4, and C2H6) on multiwalled carbon nanotubes (MWCNTs) and MWCNT doped with Ag at low temperatures (35 K) and pressures (10−6 Torr) using the temperature programmed desorption technique. Our results show that the desorption kinetics is of the first order; furthermore comparative measurements indicate that Ag/MWCNTs have an adsorption capacity higher than that of a pure sample suggesting that these composites are good candidates as gas cryosorbers for applications in cryopumps or sensor of latest generation.
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institution Kabale University
issn 2090-9063
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language English
publishDate 2014-01-01
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record_format Article
series Journal of Chemistry
spelling doaj-art-f77bc8f524fd4eae9c33a85799342bb22025-02-03T05:48:08ZengWileyJournal of Chemistry2090-90632090-90712014-01-01201410.1155/2014/816193816193Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low PressuresM. Barberio0P. Barone1F. Stranges2R. A. Romano3F. Xu4A. Bonanno5Dipartimento di Fisica, Università della Calabria, Via Bucci 31 C, 87036 Rende, ItalyDipartimento di Fisica, Università della Calabria, Via Bucci 31 C, 87036 Rende, ItalyDipartimento di Fisica, Università della Calabria, Via Bucci 31 C, 87036 Rende, ItalyDipartimento di Fisica, Università della Calabria, Via Bucci 31 C, 87036 Rende, ItalyDipartimento di Fisica, Università della Calabria, Via Bucci 31 C, 87036 Rende, ItalyDipartimento di Fisica, Università della Calabria, Via Bucci 31 C, 87036 Rende, ItalyWe present an experimental study adsorption of molecular gases (N2, H2, O2, CH4, C2H4, and C2H6) on multiwalled carbon nanotubes (MWCNTs) and MWCNT doped with Ag at low temperatures (35 K) and pressures (10−6 Torr) using the temperature programmed desorption technique. Our results show that the desorption kinetics is of the first order; furthermore comparative measurements indicate that Ag/MWCNTs have an adsorption capacity higher than that of a pure sample suggesting that these composites are good candidates as gas cryosorbers for applications in cryopumps or sensor of latest generation.http://dx.doi.org/10.1155/2014/816193
spellingShingle M. Barberio
P. Barone
F. Stranges
R. A. Romano
F. Xu
A. Bonanno
Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low Pressures
Journal of Chemistry
title Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low Pressures
title_full Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low Pressures
title_fullStr Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low Pressures
title_full_unstemmed Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low Pressures
title_short Adsorption of Molecular Gases on Silver/Carbon Nanotube Composites at Low Temperatures and Low Pressures
title_sort adsorption of molecular gases on silver carbon nanotube composites at low temperatures and low pressures
url http://dx.doi.org/10.1155/2014/816193
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