报告人：香港理工大学应用物理系 Dr. Yuming Chen
报告时间：2016年5月19日星期四 15：00 – 16：00
Abstract. One-dimensional (1D) nanostructures have been considered as promising electrodes for advanced electrical energy storage systems such as rechargeable batteries and supercapacitors in view of their low dimensional properties. Electrospinning is a simple, low cost, scalable technology to synthesize 1D nanocomposites with tailored nanostructures and compositions. In this talk, I will start with the requirements of battery and supercapacitor technologies in our society and their corresponding frameworks and mechanisms, followed by a simple introduction of electrospinning technique. Next, a discussion on how to use the electrospinning method to synthesize the desired compositions (e.g., carbonaceous materials and their hybrids with other active materials such as Sn) and nanostructured architectures (e.g., core/shell, hollow tubular, porous, and hierarchical structures) with unique physical/chemical properties (e.g., surface area, pore volume and conductivity) for energy storage application will be presented. Finally, the electrochemical performance of these electrospun nanostructures will be described.
Biography. Yuming Chen received his PhD from the Department of Mechanical Engineering at The Hong Kong Polytechnic University (PolyU) in 2014. He worked at Nanyang Technological University in Singapore after graduation and then move back to PolyU as a university postdoctoral research in Department of Applied Physics. He has published several papers such as J. Am. Chem. Soc., Angew. Chem. Int. Ed., Energy Environ. Sci., and Adv. Funct. Mater. His research interests mainly focus on the design, synthesis and applications of electrospun nanostructures for rechargeable batteries and supercapacitors.
1.Yuming Chen, et al., Energy Environ. Sci. 2012, 5, 7898-7902
2.Yuming Chen, et al., J. Am. Chem. Soc. 2013, 135, 16280-16283
3.Yuming Chen, et al., Energy Environ. Sci. 2014, 7, 2689-2696
4.Xiaoyan Li, Yuming Chen*, et al., Adv. Funct. Mater. 2015, 26, 376-383
5.Yuming Chen, et al., Angew. Chem. 2015, 127, 10667-10670
6.Yuming Chen, et al., Angew. Chem. Int. Edit. 2016, 55, 5990-5993