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CO2 adsorption characteristics of slit-pore shaped activated carbon prepared from cokes with high crystallinity

  • Carbon Letters
  • Abbr : Carbon Lett.
  • 2015, 16(1), pp.45-50
  • Publisher : Korean Carbon Society
  • Research Area : Natural Science > Natural Science General > Other Natural Sciences General

박미선 1 Lee Si-Eun 1 김민일 2 Lee, Young-Seak 1

1충남대학교
2재단법인구미전자정보기술원

Accredited

ABSTRACT

High crystallinity coke-based activated carbon (hc-AC) is prepared using a potassium hydroxidesolution to adsorb carbon dioxide (CO2). The CO2 adsorption characteristics of theprepared hc-AC are investigated at different temperatures. The X-ray diffraction patternsindicate that pitch-based cokes prepared under high temperature and pressure have a highcrystal structure. The textural properties of hc-AC indicate that it consists mainly of slit-likepores. Compared to other textural forms of AC that have higher pore volumes, this slit-poreshapedhc-AC exhibits higher CO2 adsorption due to the similar shape between its pores andCO2 molecules. Additionally, in these high-crystallinity cokes, the main factor affecting CO2adsorption at lower temperature is the pore structure, whereas the presence of oxygen functionalgroups on the surface has a greater impact on CO2 adsorption at higher temperature.

Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2023-01-03)

Total Citation Counts(KCI+WOS) (14) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

Scopus Citation Counts (21) This is the result of checking the information with the same ISSN, publication year, volume, and start page between articles in KCI and the SCOPUS journals. (as of 2024-10-01)

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