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Fabrication of Activated Porous Carbon Using Polymer Decomposition for Electrical Double-Layer Capacitors

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한국재료학회지 (Korean Journal of Materials Research)
한국재료학회 (Materials Research Society Of Korea)
초록

Because of their excellent stability and highly specific surface area, carbon based materials have received attention as electrode materials of electrical double-layer capacitors(EDLCs). Biomass based carbon materials have been studied for electrode materials of EDLCs; these materials have low capacitance and high-rate performance. We fabricated tofu based porous activated carbon by polymer dissolution reaction and KOH activation. The activated porous carbon(APC-15), which has an optimum condition of 15 wt%, has a high specific surface area(1,296.1 m2 g−1), an increased average pore diameter(2.3194 nm), and a high mesopore distribution(32.4 %), as well as increased surface functional groups. In addition, APC has a high specific capacitance(195 F g−1) at low current density of 0.1 A g−1 and excellent specific capacitance(164 F g−1) at high current density of 2.0 A g−1. Due to the increased specific surface area, volume ratio of mesopores, and surface functional groups, the specific capacitance and high-rate performance increased. Consequently, the tofu based activated porous carbon can be proposed as an electrode material for high-performance EDLCs.

목차
Abstract
1.서 론
2. 실험방법
3. 결과 및 고찰
4.결 론
References
저자
  • 성기욱(서울과학기술대학교 신소재공학과) | Ki-Wook Sung (Department of Materials Science and Engineering, Seoul National University of Science and Technology)
  • 신동요(서울과학기술대학교 의공학-바이오소재 융합 협동과정 신소재공학프로그램) | Dong-Yo Shin (Program of Materials Science & Engineering, Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology)
  • 안효진(서울과학기술대학교 신소재공학과/서울과학기술대학교 의공학-바이오소재 융합 협동과정 신소재공학프로그램) | Hyo-Jin Ahn (Department of Materials Science and Engineering, Seoul National University of Science and Technology/Program of Materials Science & Engineering, Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology) Corresponding author