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제109회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Columnarly assembled Colloidal In2S3 nanoplates on Graphene as anode materials for high performance lithium ion batteries

2012년 2월 23일 11시 04분 43초
INOR.P-256 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
4월 25일 (수요일) 18:00~21:00
저자 및
최재원, 진재원, 이제호1, 손성욱
성균관대학교 화학과, Korea
1성균관대학교 에너지과학과, Korea
This study shows that heat-treatment of colloidal inorganic nanoplates with columnar assembly under argon is a good strategy for development of anode materials. The heating of colloidal In2S3 nanoplates under argon resulted in the formation of film-like materials through interconnection of plates side by side because the plates had a strong preference for growth in the vertical direction to the basal plane. When the columnarly assembled colloidal In2S3 plates were heated at 400 oC under argon for 2 hours on graphene, more efficient anode materials with smaller diameters were obtained. Interestingly, the heat-treated columnarly assembled In2S3 plates on graphene had a layered structure, which was attributed to the possible existence of carbon materials between plates formed by the heat-treatment of surfactant under argon. The heat-treated graphene-In2S3 composites showed enhanced discharge capacities, up to 716-837 mAh/g as well as excellent stabilities. In addition, the materials showed promising columbic efficiencies and rate performances. We believe that, based on the strategy in this work, diverse graphene-inorganic nanomaterial composites with a layered structure can be prepared and applied as new anode materials in lithium ion batteries.