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  • 09월 03일 23시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제122회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Hard templating synthesis of core-shell type mesoporous carbon and its application

2018년 8월 21일 11시 39분 27초
MAT.P-351 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 18일 (목요일) 11:00~12:30
Material Chemistry
저자 및
Min Ji Kim, Ye Lim Kwon, Ji Man Kim*
Department of Chemistry, Sungkyunkwan University, Korea
The rechargeable batteries are in high demand to address increasing electric devices market. Li-ion batteries get the possession because of its high energy density and lightness, but it`s hard to use for electric vehicles and ESS due to its low capacity. So many researches are under way for alternative batteries. Among them, Li-S batteries have attracted much attention for it has high capacity and use low-cost active materials compared to Li-ion batteries. However the active material, sulfur dissolves as polysulfides intermediates while charging and discharging. This makes the capacity decrease and followed by poor cycle performance. So we tried to design new cathode materials that can block the elution of polysulfides by making microporous carbon layer. In our study, we synthesized phosphorus ordered meso-microporous carbon by nanocasting and coating method. Rod-type SBA-15 silica was used as hard template. Herein, we controlled the amount of phosphoric acid and thickness of coated carbon. The as-synthesized materials were characterized by X-ray diffraction(XRD), N2-sorption isotherm and scanning electron microscope(SEM).