韩国庆北大学两位教授学术报告

报告题目：1.Radiation methods for the preparation of nanomaterials and application2.Nanostructured conducting polymers � New methodologies and prospective applications 报告人：韩国庆北大学化学教育系高级纳米材料中心Prof. Kwang-Pill Lee , Prof. Anantha Iyengar Gopalan报告时间：2009年12月17日下午3点 报告地点：浙江大学化学系西溪校区西七化学系211室报告人简介： Kwang-Pill Lee教授1975年毕业于韩国蔚山大学,获理学学士学位,1985年在日本名古屋大学获理学硕士学位,1988年在名古屋大学获博士学位.1988年起,先后在日本原子能研究所,韩国标准科学研究所,韩国庆北大学从事科研和教学工作,主要从事分析化学,分离科学和纳米材料的研究.Anantha Iyengar Gopalan教授具有24年的教学和研究经历,主要从事高分子材料，电化学和纳米材料的研究.以Kwang-Pill Lee教授为主的研究团队主要致力以纳米材料的应用研究,包括分离分析,生物传感器,燃料电池,蓄电池等方面.报告摘要：1.Radiation methods for the preparation of nanomaterials and application The potential of combining radiation effects with nanomaterials has been recognized from the very early stages of nano-science research. In the many uses of nanostructures, and nanoparticles in particular, radiation can play a significant role for catalysis, bio sensing, nanoelectronics, magnetic applications including separations, mechanic-chemical conversion and to molecular computing. The use of gamma radiation, electron-beam or focused ion-beam is clearly central to the fabrication of the nanostructured systems. Polymer nanocomposites show special properties, which are combinations of those of their original and polymer materials. Thus, the addition of inorganic nanoparticles to polymers can enhance conductivity and mechanical toughness useful for application in such areas as organic batteries, microelectronics, non-linear optics and sensors.We have developed several nanomaterials based on the use of radiation techniques. We prepared a novel catalyst comprising multiwall carbon nanotube (MWNT), conducting polymer, and gold nanoparticle using gamma radiation induced processes. Electrospinning technology has recently been extended in various fields like preparation of porous filters, biomedical materials, reinforcing components, cloths for electromagnetic wave shielding, sensors, electronic devices, etc. We have used radiation induced grafting for imparting proton exchange properties for the composites of poly(vinylidene fluoride) (PVdF) electrospun as nanofibrous membranes, The new proton exchange membrane show promised for application in direct methanol fuel cells. Radiation based methods are foreseen to play an important role in the development and modification of nanostructures. The results of recent studies indicate its role will be growing in future.2.Nanostructured conducting polymers � New methodologies and prospective applications Conducting polymers (CPs) form the basis for a broad spectrum of new device applications (e.g., plastic transistors, organic photovoltaics, polymer light emitting diodes etc). CPs combine many attributes traditionally found in inorganic semiconductors with those of soft condensed matter. Manipulation of the molecular architecture of the CPs at the nanoscales not only alters the observed electrical and optical properties but also opens new avenue for applications. Thus, 1D or 2D nanostructured CPs (nanotube, nanorod etc) are expected to possess the synergic properties of CPs and nanoscale materials. Synthesis, processing, exploration, and exploitation of CPs are given importance in recent years. There are two major challenges in the development of nanostructured CPs for applications; establishment of new methodologies for the preparation of nanostructured conducting polymers (like nanotubes, nanowires, nanoribbons, nanobelts, nanofibers, nanobundles) and utilization of the synergic and functional properties of nanostructured CPs for analytical applications. We have demonstrated that it is possible to tune the properties of CPs in their nanoscale architecture and utilize for specified applications like sensor, electrocatlaysis etc by judicious selection of components in the composites and intricate choice of nanostucturing methodologies. In this lecture, the methodologies evolved by our research group for nanostructuring of CPs and the applications of such functional nanomaterials in sensors, catalysis and separation science will be discussed. 理学院化学系