The preparation of carbon adsorbents through carbonization of polymer precursors is drawing attention in that it can form uniform size of micropores. In this study, several carbon adsorbents were prepared by carbonization of poly(vinylidenefluoride) (PVDF) at between 500 and 900 °C under Ar or CO₂ carrier flow. The prepared samples exhibited pore size distribution between 0.6 and 1.3 nm, and the pore structure was formed differently according to the carbonization conditions. Especially, the CO₂ caused further activation during polymer carbonization, leading to better development of the microporous structure. The formed micropores were found to be uniformly distributed on the adsorbent surface from TEM image, and their structure could be characterized by XPS analysis. The volumetric adsorption measurements revealed that the porous carbon adsorbents had good CO₂ and CH₄ adsorption performances. Moreover, the measured adsorption capacities were highly dependent on the narrow micropore (<0.8 nm) volume. Based on these results, additional porous carbon adsorbents could be prepared to increase narrow micropore volume by varying the sample amount and temperature increasing/decreasing rates. As a results, one of the prepared porous carbon adsorbents showed remarkable adsorption capacity at 25 °C; 5.02 mmol/g for CO₂ and 2.35 mmol/g for CH₄.

通过聚合物前体的碳化制备碳吸附剂受到关注，因为它可以形成均匀大小的微孔。在这项研究中，通过在Ar或CO ₂载流下于500至900°C之间碳化聚偏二氟乙烯（PVDF），制备了几种碳吸附剂。制备的样品的孔径分布在0.6和1.3 nm之间，并且根据碳化条件，孔结构的形成不同。特别是CO ₂引起聚合物碳化过程中的进一步活化，从而导致微孔结构更好的发展。从TEM图像中发现形成的微孔均匀地分布在吸附剂表面上，并且其结构可以通过XPS分析来表征。体积吸附测量结果表明，多孔碳吸附剂具有良好的CO ₂和CH _4。吸附性能。此外，测得的吸附能力高度取决于狭窄的微孔（<0.8 nm）体积。根据这些结果，可以制备其他多孔碳吸附剂，以通过改变样品量和温度升高/降低速率来增加狭窄的微孔体积。结果，所制备的一种多孔碳吸附剂在25℃下显示出显着的吸附能力。对于CO ₂为5.02mmol / g，对于CH ₄为2.35mmol / g 。