| 학회 |
한국재료학회 |
| 학술대회 |
2020년 가을 (11/18 ~ 11/20, 휘닉스 제주 섭지코지) |
| 권호 |
26권 1호 |
| 발표분야 |
G. 나노/박막 재료 분과 |
| 제목 |
Perforated Co3O4 Nanoparticles with a Carbon Shell for Li-ion Battery Application |
| 초록 |
A facile method for preparing mesoporous perforated Co3O4 nanoparticles with hollow channels and a thin carbon layer was newly designed and achieved with sacrificial carbon nanotube (CNT) templates. The threaded Co3O4 nanoparticles on the CNTs were fabricated through a hybridization process, and a subsequent calcination process produced mesoporous perforated Co3O4 nanoparticles. With a finely tuned calcination, CNTs were sacrificed to generate hollow channels in the Co3O4 nanoparticles and to provide a carbon source for the formation of a few nm-thick carbon layer on the surface of the Co3O4 nanoparticles simultaneously. The prepared mesoporous perforated Co3O4 nanoparticles with a robust electronic conductive layer enabled not only an enhanced electrochemical reactivity from the greatly increased contact area between the electrolyte and electrode but also a high electronic conductivity of the overall electrode so that excellent electrochemical performances (1,115.1 mA h g-1 after 100 cycles; 595.9 mA h g-1 @ 5 C rate) were successfully achieved in the anode application of a lithium-ion battery. |
| 저자 |
박지선, 김윤진, 신권우
|
| 소속 |
전자부품(연) |
| 키워드 |
Co<SUB>3</SUB>O<SUB>4</SUB>; Carbon; Battery
|
| E-Mail |
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