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Journal of Nanomaterials
Volume 2013, Article ID 705107, 6 pages
Research Article

Water Vapor Adsorption Capacity of Thermally Fluorinated Carbon Molecular Sieves for CO2 Capture

1Department of Applied Chemistry and Biological Engineering, Chungnam National University, Daejeon 305-764, Republic of Korea
2Department of Fire and Disaster Protection Engineering, Woosong University, Daejeon 300-718, Republic of Korea
3CNT Team, Hanwha Chemical Corporation, Incheon 403-030, Republic of Korea

Received 13 August 2013; Accepted 23 August 2013

Academic Editor: Yun Suk Huh

Copyright © 2013 Jin-Young Jung et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The surfaces of carbon molecular sieves (CMSs) were thermally fluorinated to adsorb water vapor. The fluorination of the CMSs was performed at various temperatures (100, 200, 300, and 400°C) to investigate the effects of the fluorine gas (F2) content on the surface properties. Fluorine-related functional groups formed were effectively generated on the surface of the CMSs via thermal fluorination process, and the total pore volume and specific surface area of the pores in the CMSs increased during the thermal fluorination process, especially those with diameters ≤ 8 Å. The water vapor adsorption capacity of the thermally fluorinated CMSs increased compared with the as-received CMSs, which is attributable to the increased specific surface area and to the semicovalent bonds of the C–F groups.