报告题目：Magnetocapacitive Behavior in Electroactive Carbon Nanocomposites
报告人：Prof. Jiahua Zhu，The University of Akron
报告时间：2014年6月10日（星期二）上午 10:00 --- 11:00
报告地点：苏州大学独墅湖校区907号楼1445会议室
报告摘要: The global energy supply is transforming from conventional fossil energy to sustainable energy. Sustainable energy species, for example, solar, wind, and hydro energy, are in an unsteady state and fail to provide a stable energy supply. Energy storage systems are able to collect these unsteady state energies and output as stable energy supply. Electrochemical capacitor is recognized as promising system due to its combined higher energy density and power density, current research efforts mainly focus on (1) synthesizing new electrode materials to enlarge specific capacitance, and (2) designing asymmetric capacitor configuration and utilizing organic electrolytes to expand the working potential range.
In this talk, small external magnetic field (0.072 Tesla) induced capacitance enhancement on carbon nanocomposites will be discussed. Two processes, conventional- and microwave- annealing, are introduced to manufacture desired electroactive carbon nanocomposites decorated with pseudoactive metal oxide nanostructures (for example, Fe2O3, NiO and Co3O4). The proposed mechanisms are interpreted by capacitor internal resistance change (solution resistance, charge transfer resistance and leakage resistance), which are based on Magnetohydrodynamics and Magnetoresistance phenomena. These findings will have significant impact on processes involving proton and electron transfer as used in Li ion battery, fuel cells, electrochemical and biological sensing, and electrocatalytic CO2 reduction.
报告人简介：Dr. Jiahua Zhu is an assistant professor in Department of Chemical and Biomolecular Engineering at the
