화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.101, 186-194, September, 2021
DOI10.1016/j.jiec.2021.06.013  Export Citation
Structural pore elucidation of super-activated carbon based on the micro-domain structure model
Taegon Kim1, 2, Doo-Won Kim2, 3, Keiko Ideta2, Cho-I Park4, Jin Miyawaki2, Joo-Il Park4, †, and Seong-Ho Yoon3, †
  • 1Battery Research Center, R&D Campus Magok, LG Energy Solution, Seoul 07796, Republic of Korea
  • 2Interdisciplinary Graduate School of Engineering Sciences and Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasugakoen, Kasuga, Fukuoka 816-8580, Japan
  • 3Institute of Advanced Composite Materials, Korea Institute of Science and Technology, 92 Chudong-ro, Bongdong-eup, Wanju-gun, Jeonbuk 55324, Republic of Korea
  • 4Department of Chemical & Biological Engineering, Hanbat National University, Daejeon 34158, Republic of Korea
E-mail:,
For elucidation of the pore structure of super-activated carbon (SAC) based on the micro-domain structure model, a new experiment of inverse approach was designed by ball-mill treatment. The two representative SACs with an ultra-high specific surface area (~3000 m2 g-1) used Maxsorb-III as a nongraphitizable carbon and M-30 as a graphitizable carbon, which are derived from petroleum coke and meso-phase carbon microbeads (MCMB), respectively. SACs consisting of micro-domains, are destroyed during ball milling due to the weak-interactions between the micro-domains. The formation mechanisms of their intra-particular pores (internal slit-like micropores in micro-domain) and inter-particular pores (channeled mesopores between microdomains) are successfully explained by the N2 adsorption/desorption isotherms, FE-SEM, HR-TEM, STEM, and electrochemical techniques. In addition, their capacitance behaviors using different electrolytes as a probe are clearly matched with the change of micro- and mesopores through the ball-mill treatment. This novel micro-domain structure model for porous carbon materials successfully accounts for critical limitations of the conventional hierarchical pore structure model.
Keywords:Super-activated carbons;Ball millings;Micro-domains;Porous carbon materials;Micro-domain structure model
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