Activated carbons (ACs) have been used as EDLC (electric double-layer capacitor) electrode materials due to their high specific area, stability, and ecological advantages. In order to prepare ACs with high density and crystallinity, coal tar pitch (CTP) was activated by K2CO3 and the textural and electrochemical properties of the obtained ACs were investigated. Although the CTP ACs formed by K2CO3 activation had much smaller specific surface area and pore volume than did the CTP ACs formed by KOH activation, their volumetric specific capacitance (F/cc) levels as electrode materials for EDLC were comparable due to their higher density and micro-crystallinity. Structural characterization and EDLC-electrode performance were studied with different activation conditions of CTP/K2CO3 ratio, activation temperature, and activation period.

1. 서 론
 2. 실험 방법
  2.1 활성탄 제조
  2.2 비표면적과 기공 특성
  2.3 전극 제조 및 코인형 전지 조립
  2.4 전기화학적 특성 평가
 3. 결과 및 고찰
  3.1 CTP활성탄의 물리적 특성 및 정전용량
  3.2 CTP활성탄의 결정성
  3.3 CTP활성탄 전극의 전기화학적 특성
 4. 결 론
 Reference

• 최푸름(명지대학교 화학공학과) | Poo Reum Choi
• 정지철(명지대학교 화학공학과) | Ji Chul Jung
• 임연수(명지대학교 신소재공학과) | Yun-Soo Lim
• 김명수(명지대학교 화학공학과) | Myung-Soo Kim Corresponding author