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| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
MAT.P-385 |
| Subject |
Na storage behavior of Co3O4/graphene for electrochemical application |
| Authors |
HyeRyeon Jang, Seung-Min Paek*
Department of Chemistry, Kyungpook National University, Korea
|
| Abstract |
The Co3O4/graphene composite was synthesized to used as an electrode material in secondary battery. The structure and physicochemical properties are characterized by XRD, SEM, TEM, FT-IR and RAMAN. The TEM image confirmed the Co3O4 nanoparticles were grown on the graphene nanosheets in the manner of covering the graphene surface and anchoring to the edge. In the electrochemical performance, the bare Co3O4 has poor rate capability and low capacity, which attributed to a volume variations and particle aggregation during the charge/discharge processes. However, by using graphene as a conductive support material, enhanced electrochemical properties such as improved electronic conductivity and fast ion diffusion were obtained. Graphene nanosheets in the product have a role as a buffer that alleviates volume changes, resulting in better stability and higher rate capabilities upon successive cycles. |
| E-mail |
wkdxx91@nate.com |
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120th General Meeting of the KCS