학회 | 한국화학공학회 |
학술대회 | 2012년 봄 (04/25 ~ 04/27, 제주 ICC) |
권호 | 18권 1호, p.632 |
발표분야 | 에너지 |
제목 | Ordered Mesoporous Carbon-MoO2 Nanocomposites as Supercapacitor Electrodes |
초록 | Ordered mesoporous carbon (OMC)/metal oxide nanocomposites have shown excellent performance in various field such as catalysis and energy storage due to their beneficial properties: i)high surface area which results in more physicochemical active sites; ii)ordered mesoporous structures contributing to a nanosized sub-structure[1-2]. In this work, preparation of OMC-MoO2 nanocomposites by triconstituent (reseol, MoCl5 and F127) co-assembly method was firstly reported. The mesostructure of the acquired nanocomposite was confirmed by TEM, XRD, XPS, EDX and physical sorption. The results indicated that the as-prepared carbon composite with different fraction of MoO2 (9wt%-38wt%) processed ordered mesoporous structures and good dispersion of MoO2 nanophases. Gradual collapsing of ordered structure was observed in the case of higher MoO2 fraction. The OMC-MoO2 nanocomposites were investigated as supercapacitor electrodes. Due to the most available pseudocapacitive sites and strong attachment between the MoO2 and carbon phase, the composite with 38wt% MoO2 showed the highest capacitance with stable cycle performance. |
저자 | Zhou Yuanyuan1, 이철위2, 윤성훈2 |
소속 | 1Korea Research Institute of Chemical Technology / Univ. of Science and Technology, 2Korea Research Institute of Chemical Technology |
키워드 | Ordered Mesoporous Carbon; MoO2; Supercapacitor |
yoonshun@krict.re.kr | |
원문파일 | 초록 보기 |