Dr. Jingjie Wu

University of Cincinnati, USA

Biography

Jingjie Wu is a Professor of Chemical Engineering at the University of Cincinnati. He holds a Ph.D. in Chemical Engineering from the University of South Carolina and completed his postdoctoral studies at Rice University. His research endeavors are centered on pioneering advancements in catalysts, electrodes, processes, and modular reactors for the environmentally sustainable synthesis of chemicals and fuels utilizing renewable energy sources. His contributions to the field have been recognized by esteemed accolades, including the University of Cincinnati's Research Award for Early Career Faculty and the ORAU Ralph E. Powe Junior Faculty Enhancement Award. Additionally, he has been recognized as an Emerging Investigator or Rising Star by several high-impact journals, such as Journal of Materials Chemistry A, Chemical Communications, Chem Catalysis, and Energy & Fuels.

Abstract

CO2 capture and utilization can be a feasible way for the net-zero transition of the chemical industry when concerted efforts build up the carbon-capture-and-utilization value chain worldwide. The frontier research on CO2 electrolyzers focuses on increasing selectivity toward a single product, promoting energy efficiency, reducing CO2 crossover, and enhancing stability. This presentation will introduce our recent progress in developing tandem electrodes for promoting the C-C coupling (rate-determining step, RDS) kinetics and designing catalysts based on reaction descriptor for steering the post-C-C coupling selectivity (selectivity-determining step, SDS). The collective control of RDS and SDS could direct CO2 conversion to C2H4 with 70% Faradaic efficiency and a partial current density of >1.5 A cm^-2. This presentation will also address the coupled carbon and energy efficiencies by pairing CO2 reduction with electrochemical oxidative dehydrogenation and efficient oxygen evolution reaction under pure water conditions. Finally, this talk will present the visualization of electrode flooding causing CO2 reduction performance degradation and discuss strategies to mitigate flooding when operating at a current density of industrial relevance.

报告地点：能源学院M1楼一号会议室

报告时间：2024年6月19日 9:00