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  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제121회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis of interconnected porous carbon nanosheets with controllable pore size and their use as electrode material for supercapacitor

2018년 2월 12일 09시 54분 51초
ENVR.O-6 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 10시 : 50분
Environmental Energy - Oral Presentation for Young Scientist in Environmental and Energy Chemistry
저자 및
JIYOUNG LEE, Woo Kyung Cho1, Bongsoo Kim*, Hana Yoon2,*
Department of Chemistry, Korea Advanced Institute of Science and Technology, Korea
1Department of Chemistry, Chungnam National University, Korea
2Separation and Conversion Materials Research, Korea Institute of Energy Research, Korea
Interconnected porous carbon nanosheets (IPCNs) have recently received great attention as the electrode materials of electrochemical capacitors, as adsorbents, and as catalytic supports because of their high surface area, efficient ion transport, and three-dimensional (3D) structure. Herein, IPCNs with controllable pore-size distributions, ranging from micro- to mesoporous, are synthesized by pyrolysis of alkali metal citrates. Microporous, mesoporous, and hierarchical micro/mesoporous IPCNs are produced. Particularly, the hierarchical micro/mesoporous IPCNs derived from the mixture of potassium and sodium citrates in a weight ratio of 8:2 show high specific capacitance (∼200 F/g at 5 mV/s), excellent rate capability and cyclability. Furthermore, the mechanism of IPCN formation is studied. The alkali metal carbonate formed during heat treatment of alkali metal citrate is expected to act as both activation agents and templates for carbon nanosheets.