主题:  用氧化锌纳米片包裹的碳纳米纤维应用于超级电容器研究主讲人:  Jae Kyoung Ko地点:  东华大学研究院209会议室（延安路校区）时间:  2018-05-20 14:30:00组织单位:   纺织学院

报告人简介：

Dr. Jae Kyoung Ko received the Ph.D. degree in Department of TextileEngineering from Chonbuk National University, Korea, in 2017. After graduation,she worked as a chief researcher at CJ Cheil-Jedang Product Development Center(CJ) 2000-2012. Since 2012 She worked as a Team manager in Korea Institute ofConvergence Textile, period in 2013~2018. Currently, she is a researchprofessor in the Department of Organic Materials & Fiber Engineering. Hermain a research and development professional with expertise in textileengineering and polymer science. Key contributor to process optimizationthrough data analysis and laboratory methodologies. Especially drug materialsstudy for medical application.

报告大纲：

A combination of both electrospinng and hydrothermal processes were usedto synthesize the ZnO/CNFs composite as an effective electrode material forsupercapacitors. The morphology of the as-prepared composite clearly showedthat the carbon nanofibers were successfully wrapped with ZnO nano-flakes. Theelectrochemical performance of the as-prepared composite was carried out bycyclic Voltammetry, galvanostatic charge-discharge, and electrochemicalimpedance spectroscopy. The specific capacitance of the ZnO/CNFs compositewashigher (260 F/g) than pristine ZnOnanofibers (118 F/g) at the lower current density 0.25 A/g. As-fabricatedZnO/CNFs composite exhibited good capacity retention (73.3%) after 1000 cycles.The as-fabricated composite has great potential applications in developingenergy storage devices.