Hydrogen-bonded and physisorbed CO in single-walled carbon nanotube bundles

被引：39
|
作者：
Matranga, C [1 ]
Bockrath, B [1 ]
机构：
[1] US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 11期
关键词：
D O I：
10.1021/jp0464122
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：
Fourier transform infrared spectroscopy is used to study CO adsorption in single-walled carbon nanotubes. Evidence for adsorption in endohedral and groove/external surface sites is presented through displacement studies involving both CO and CO2. Blue-shifted CO stretching frequencies also indicate that CO hydrogen bonds to hydroxyl functionalities created on the nanotubes by acid purification steps. N-2 surface area measurements are used to further understand the porosity of the nanotube samples and to help explain the spectroscopic results.
引用
收藏
页码：4853 / 4864
页数：12
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