In this study, activated carbons nanofibers (ACNFs) were prepared from polyacrylonitrile-based nanofibers by physical (H2O and CO2) and chemical (KOH) activation. The surface and structural characteristics of the porous carbon were observed by scanning electron microscopy and X-ray diffraction, respectively. Pore characteristics were investigated by N2/77K adsorption isotherms. The specific surface area of the physically ACNFs was increased up to 2400m2/g and the ACNFs were found to be mainly composed of micropore structures. Chemical activation using KOH produced ACNFs with high specific surface area (up to 2500m2/g), and the micropores were mainly found in the ACNFs. The physically and chemically ACNFs showed both mainly type I from the International Union of Pure and Applied Chemistry classification.

• Hye-Min Lee(R&D Division, Korea Institute of Carbon Convergence Technology, Department of Carbon Fusion Engineering, Jeonju University)
• Hyo-Rang Kang(Samsung Advanced Institute of Technology)
• Kay-Hyeok An(R&D Division, Korea Institute of Carbon Convergence Technology)
• Hong-Gun Kim(Department of Carbon Fusion Engineering, Jeonju University) Corresponding Author
• Byung-Joo Kim(R&D Division, Korea Institute of Carbon Convergence Technology) Corresponding Author