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제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 N-Doped Graphitic Carbon Coated Fe2O3 Using Dopamine as an Anode Material for Sodium-Ion Batteries

등록일
2019년 2월 13일 09시 44분 53초
접수번호
4021
발표코드
ELEC.P-455 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 18일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Jungwook Song, Jongsik Kim*
Department of Chemistry, Dong-A University, Korea
Sodium ion batteries (SIBs) have attracted much attention for the application in large-scale energy storage systems (ESS) the next generation energy storage devices because they have the advantages of natural abundance and low cost. However, high-performance anode materials are still needed. Iron oxide (Fe2O3) is considered one of the promising anode materials because of its abundance, high theoretical capacity (about 1007.0 mAh g-1), low cost, and non-toxicity. However, pristine Fe2O3 is accompanied by considerable volume change, causing electrode pulverization and agglomeration of Fe2O3 particles during charge-discharge processes. As a result, the pristine Fe2O3 undergoes relatively low reversible capacity and cycle stability. To overcome these problems, we synthesized Fe2O3 coated with N-doped graphitic carbon (Fe2O3/NGC) using dopamine as carbon and nitrogen sources. Compared with pristine Fe2O3, Fe2O3/NGC composite exhibited the improved reversible capacity of about 497.66 mA h g-1 after 150 cycles at 100.7 mA g-1 and 0.01-3.0 V.

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