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

제125회 대한화학회 학술발표회 및 총회 Facile hydrothermal synthesis of NiCo2O4- decorated filter carbon as electrodes for high performance asymmetric supercapacitors

등록일
2020년 2월 6일 10시 57분 22초
접수번호
0723
발표코드
ELEC.P-907 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
온라인 PDF 제출
발표형식
포스터
발표분야
Electrochemistry
저자 및
공동저자
Guijun Yang, Soo-Jin Park1,*
Department of Chemistry, Inha University, China
1Department of Chemistry, Inha University, Korea
A simple hydrothermal method is developed for the growth of NiCo2O4 nano-needle arrays on a filter paper carbon (FC) substrate for use as a high performance electrode for supercapacitors. The as-synthesized NiCo2O4/C composites exhibited high specific capacitance (995.2 F g-1 at a current density of 10 A g-1.) and excellent cycling performance (no capacitance loss after 3000 cycles). The 3D framework of the FC substrate not only prevents the aggregation of NiCo2O4 nanoparticles, but also improves its electrical conductivity, thus leading to excellent electrochemical performance. Moreover, an asymmetric supercapacitor was assembled by using the NiCo2O4/C composites and activated carbon as the positive and negative electrode, respectively, and provided a maximum energy density of 20.87 Wh kg-1 at a power density of 374.6 W kg-1 and a maximum power density of 7.48 kW kg-1 at an energy density of 11.43 Wh kg-1 within a potential window of 0-1.5 V, demonstrating the potential of the composites for use in high performance energy storage systems.

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