| 초록 |
Carbon molecular sieves (CMSs) were thermally fluorinated to adsorb water vapor. The fluorination of the CMSs was performed under a gas phase reaction at different temperatures (100, 200, 300, and 400 ℃) to investigate the effects of the fluorine gas (F2) content on the surface properties of CMSs. 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 due to the thermal fluorination, especially those with diameters below 8 Å. The water vapor adsorption capacity of the thermally fluorinated CMSs increased compared with the as-received CMSs, which is due to the increased specific surface area and to the semi-covalent bonds of the C-F groups. |
