| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
에너지저장변환_포스터 |
| 제목 |
A study on electrochemical property of urea-based nitrogen-doped graphene nanosheets for lithium cells |
| 초록 |
Urea is one of the effective materials as nitrogen source for N-doped carbon. In this study, we apply urea-based nitrogen-doped graphene nanosheets(NGS) as anode material for lithium sulfur cells. Nitrogen doped graphene was synthesized by facile solid-states thermal reaction of graphene oxide and urea. For comparison, thermally reduction of graphene oxide without nitrogen source was carried out. The prepared NGS was then added into sulfur suspension to infiltrate sulfur between graphene sheets. The morphology of the composite was examined by scanning electron microscopy (SEM), transition electron microscopy (TEM). Electrochemical properties were also characterized by cyclic voltammetry (CV) in 1M LiTFSI electrolyte. Nitrogen atoms of graphene could be attributed to high capacity and stability of lithium-sulfur battery. |
| 저자 |
김기용, 김석
|
| 소속 |
부산대 |
| 키워드 |
graphene; lithium-sulfur; battery
|
| E-Mail |
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