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  • 05월 20일 18시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제125회 대한화학회 학술발표회 및 총회 Fe2O3/N-doped Graphitic Carbon Nanoparticles Using Dopamine with Enhanced Electrochemical Performance as an Anode Material for Sodium-Ion Batteries

2020년 2월 5일 18시 23분 21초
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저자 및
Jungwook Song, Chaeeun Lee1, Jongsik Kim*
Department of Chemistry, Dong-A University, Korea
1Chemistry, Dong-A University, Korea
Lithium-ion batteries (LIBs) have been extensively studied due to high energy and power density. However, LIBs have been suffering some issues of low resources in earth’s crust and high cost of lithium to apply for larger scale energy storage systems such as electric vehicles and energy storage grids. Sodium-ion batteries (SIBs) can be an alternative of LIBs because of the sufficient resources, low cost and similar redox reaction of sodium compare with lithium. Fe2O3 can be used as an anode material in SIBs due to its high theoretical capacity (1007.0 mAh g-1), low cost and non-toxic. However, Fe2O3 exhibits low reversible capacity and cycle stability from the volume changes and aggregation during synthesis and cycling processes. For alleviate these problems, we successfully synthesized Fe2O3/N-doped graphitic carbon (Fe2O3/NGC) using dopamine as carbon and nitrogen sources. Fe2O3/NGC composite shows enhanced rate performance and cycling stability with an initial discharge capacity of about 1178.28 mAh g-1 and about 502.9 mA h g-1 after 150 cycles at 100.7 mA g-1 and 0.01-3.0 V, which values are superior to those of the bare Fe2O3.