| 학회 |
한국화학공학회 |
| 학술대회 |
2015년 봄 (04/22 ~ 04/24, 제주 ICC) |
| 권호 |
21권 1호, p.480 |
| 발표분야 |
에너지 |
| 제목 |
Ultrathin sandwich-like MoS2@N-doped carbon nanosheets for the anode of lithium ion battery |
| 초록 |
We report a simple and scalable process to synthesize the core–shell nanostructure of MoS2@N-doped carbon nanosheets (MoS2@C), in which polydopamine is coated on the MoS2 surface and then carbonized. Transmission electron microscopy and Raman spectroscopy reveals that the as-synthesized MoS2@C possesses a nanoscopic and ultrathin layer of MoS2 sheets with a thin and conformal coating of carbon layers (∼3 nm). The MoS2@C demonstrates a superior electrochemical performances as an anode material for lithium ion batteries compared to exfoliated MoS2 and bulk MoS2 samples. This unique core–shell structure is capable of excellent delivery Li+ ion in charging–discharging process: a specific capacity as high as 1239 mA h g−1, a high rate of charging-discharging capability even at a high current rate of 10 A g−1 while retaining 597 mA h g−1, and a good cycle stability over 200 cycles at a high current rate of 2 A g−1. |
| 저자 |
정재민1, 박견주1, 석승환1, 최봉길2, 김도현1
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| 소속 |
1한국과학기술원, 2강원대 |
| 키워드 |
Molybdenum disulfide; N-doped carbon; 2-D Nanosheet; Lithium ion battery
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| E-Mail |
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| 원문파일 |
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