报告题目：电化学能源系统中的界面反应--从原位基础研究到商业应用

报告人：冯振兴 教授 （俄勒冈州立大学）

报告时间：2023年8月11日（周五）10:00-11:00

报告地点：华南理工大学（大学城校区）环境与能源学院B5-102学术报告厅

欢迎广大师生参加。

环境与能源学院

2023年8月8日

报告摘要：

For electrochemical systems such as batteries and fuel cells, the gas/solid and liquid/solid interfaces are critical parts where many important reactions take place. It is critical to understand the interfacial changes for the better design of efficient energy systems. In the past years we have used various in-situ and operando synchrotron-based X-ray techniques including scattering, spectroscopy and imaging to investigate the atomic and electronic structure, chemistry and compositions of various electrochemical interfaces in fuel cells, electrolyzers, lithium-, sodium- and magnesium-batteries. In my talk, I will mainly illustrate two representative examples. I will first illustrate our efforts on using in-situ X-ray spectroscopy and scattering techniques to study electrocatalyst restructuring in highly oxidative electrochemical condition such as oxygen evolution reaction for water splitting, and how we transform these learning from fundamental studies to potential commercial applications. Then I will discuss our recent works for aqueous sodium-ion batteries to achieve fast charging, better energy density, and longer cycling life, and fundamental studies to reveal the mechanism that enables batteries’ high performance.

报告人简介：

Dr. Zhenxing Feng is an Associate Professor in the School of Chemical, Biological, and Environmental Engineering at Oregon State University, USA. Dr. Feng obtained a BS at Peking University, China and MS at McGill University, Canada. After completing his Ph.D. in Materials Science and Engineering at Northwestern University, USA, Dr. Feng worked as a postdoctoral scholar at Massachusetts Institute of Technology and the Joint Center for Energy Storage Research (JCESR) of Argonne National Laboratory. In 2016, Dr. Feng moved to Oregon State University to start his independent career.  Dr. Feng was named as the highly cited researcher by Clarivate in 2022, and is interested in finding design principles of various materials for energy harvesting, conversion, and storage applications.