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

被引：3

作者：

Barberio, M. ^{[1
,2
]}

Barone, P. ^{[1
,2
]}

Stranges, F. ^{[1
,2
]}

Romano, R. A. ^{[1
]}

Xu, F. ^{[1
]}

Bonanno, A. ^{[1
]}

机构：

[1] Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, Italy

[2] Univ Calabria, Dipartimento Biol Ecol & Sci Terra, I-87036 Arcavacata Di Rende, Italy

来源：

JOURNAL OF CHEMISTRY | 2014年 / 2014卷

关键词：

OPTICAL-PROPERTIES; CARBON NANOTUBES; NANOPARTICLES; SILVER;

D O I：

10.1155/2014/816193

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present an experimental study adsorption of molecular gases (N-2, H-2, O-2, 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.

引用

页数：7

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