Restricted adsorption of carbon dioxide gas in fluorinated single-walled carbon nanotubes

被引：1
|
作者：
Sekiya, Yuta [1 ]
Sugiyama, Hironori [1 ]
Sagisaka, Kento [1 ]
Kondo, Atsushi [2 ]
Hattori, Yoshiyuki [1 ]
机构：
[1] Shinshu Univ, Fac Text Sci & Technol, Ueda, Nagano 3868567, Japan
[2] Tokyo Univ Agr & Technol, Grad Sch Engn, Dept Appl Chem, Koganei, Tokyo, Japan
来源：
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2018年 / 26卷 / 11期
关键词：
Carbon nanotubes; fluorination; porous materials; adsorption; MOLECULAR SIMULATION; RAMAN-SPECTROSCOPY; CO2; ADSORPTION; CHEMISTRY; FIBERS; SIEVES; ARRAYS; WATER; SIZE;
D O I：
10.1080/1536383X.2018.1493460
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：
Single-walled carbon nanotubes were fluorinated between 298 and 473 K using elemental F-2, and their adsorption properties were investigated through N-2 and CO2 adsorption measurements. Interestingly, a low-pressure adsorption/desorption hysteresis phenomenon was observed for the CO2 adsorption/desorption isotherms of the fluorinated nanotubes. This remarkable adsorption/desorption hysteresis may be attributed to restricted access to the inner pores of the nanotubes due to the presence of fluorinated pore gates. Diffusional limitations caused by such pore blocking effects are therefore discussed as the origin of the hysteresis. This low-pressure hysteresis may provide an insight into adsorption in the fluorinated pores, which is of particular interest for gas adsorption technologies.
引用
收藏
页码：746 / 750
页数：5
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