Adsorption kinetics of thiophene on single-walled carbon nanotubes (CNTs)

被引：33
|
作者：
Goering, J. [1 ]
Burghaus, U. [1 ]
机构：
[1] N Dakota State Univ, Dept Chem Biochem & Mol Biol, Fargo, ND 58105 USA
来源：
CHEMICAL PHYSICS LETTERS | 2007年 / 447卷 / 1-3期
关键词：
D O I：
10.1016/j.cplett.2007.09.015
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Metal supported carbon nanotubes (CNTs) appear promising for desulphurization catalysis. Therefore a characterization of the adsorption kinetics of small sulfur containing compounds on clean CNTs is important in order to develop a mechanistic understanding of more complex systems. Presented are thermal desorption spectroscopy (TDS) data of thiophene (C4H4S) adsorption on CNTs supported on silica. According to multi-mass TDS, molecular adsorption/desorption is present with a binding energy of (60 +/- 2) kJ/mol at small coverages. Alkane-thiophene co-adsorption TDS reveals that C4H4S molecules adsorb on interior sites of the CNTs. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：121 / 126
页数：6
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