| 학회 |
한국공업화학회 |
| 학술대회 |
2017년 봄 (05/10 ~ 05/12, 광주 김대중컨벤센센터(Kimdaejung Convention Center)) |
| 권호 |
21권 1호 |
| 발표분야 |
환경에너지 |
| 제목 |
Electrochemical analysis of ZIF-67 @ graphene oxide-derived carbon composite electrodes by changing the PVP concentration for lithium secondary batteries |
| 초록 |
Zeolitic imidazolate frameworks (ZIFs) are a novel class of metal organic frameworks (MOFs), which have large surface area and uniform pore structures. ZIFs have polyhedral structure composed of metal ions bridged by ligand such as a imidazolate. Polyvinylpyrrolidone (PVP) have usually played a role in as a stabilizer and dispersant. In this study, PVP also can play not only as a stabilizer and dispersant but also effect to morphology of ZIF. ZIF-67 which is one of the cobalt-based ZIFs was synthesized from cobalt nitrate hexahydrate and 2-methylimidazole. Furthermore, a certain amount of graphene oxide and different amount of PVP were added during synthesis process. The obtained ZIF-67@graphene oxide-sulfur composite was used for cathode and the electrochemical characterizations were conducted through cyclic voltammetry and charge-discharge battery tests. We confirmed correlation between amount of PVP and electrochemical performance of Li-S cells in this study. |
| 저자 |
홍진영, 김석
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| 소속 |
부산대 |
| 키워드 |
Zeolitic imidazolate framework; Lithium-sulfur battery; Polyvinylpyrrolidone
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| E-Mail |
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