| 초록 |
Since, supercapacitors are based on charge accumulation at the electrode/electrolyte interface, it is important to secure a large surface area. In this regard, metal organic framework (MOF) nanocrystals are attracting considerable interest due to their exceptional surface areas. They can be used as conductive supports for various electrocatalysts. Depending on the synthesis, MOFs have different coordination structures, morphologies, and porosities, resulting in various applications such as energy storage systems, gas storage, and catalysis. In this report, we combine carbonized zeolitic imidazolate framework (ZIF-8) with PEDOT:PSS as a conductive polymer mixture for high performance flexible supercapacitor electrode. The composite film has a 3D network structure allowing fast charge transfer with a high surface area. This composite film electrode shows high specific energy of 7.19 Wh kg-1 and good rate-performance as well as long cycle life for at least 5000 charge-discharge cycles. |
