학회 | 한국화학공학회 |
학술대회 | 2016년 봄 (04/27 ~ 04/29, 부산 BEXCO) |
권호 | 22권 1호, p.987 |
발표분야 | 재료 |
제목 | Synthesis of Three-dimensional Core/Shell Structure of MnO2@Polyaniline/Carbon Fiber Paper for High Performance of Supercapacitor |
초록 | In this work, we developed a straightforward and simple method for preparation of three-dimensional core/shell structure of MnO2@polyaniline(PANI)/carbon fiber paper(CFP) electrodes. MnO2 nanosheet deposited on carbon fiber paper (CFP) was synthesized using a simple redox reactive reaction, and then PANI was directly deposited on the surface of MnO2 nanosheet by electrochemical coating method. The MnO2@PANI/CFP can be applied as a binder- and carbon-free electrode for supercapacitors. The MnO2@PANI/CFP material is characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. Electrochemical performance of the MnO2@PANI/CFP electrode was studied by cyclic voltammetry, galvanostatic charge/discharge, and electrochemical impedence spectroscopy. The MnO2@PANI/CFP electrode shows a high specific capacitance of 437 F g–1 at 1A g-1, a good rate capability, and an excellent cycling stability. Keywords : Nanosheet, Pseudocapacitor, Carbon Fiber Paper, Conductivity, Composite electrode. |
저자 | 홍석복, 최봉길 |
소속 | 강원대 |
키워드 | 화공나노소재; 센서 및 소자 |
원문파일 | 초록 보기 |