报告题目：Interface engineering for the electro-conversion of CO2

报告人：Damien Voiry, Institut Européen des Membranes, Université de Montpellier

主持人（邀请人）：崔小强教授

报告时间：2024年11月19日  下午15:30

报告地点：唐敖庆楼D区429

主办单位：菠菜导航网228118   汽车材料教育部重点实验室

报告摘要：

The conversion of CO2 via electrochemical processes is a promising technology to close the carbon cycle, especially when combined with renewable energy sources. Given their high market value and energy density, significant efforts are currently dedicated to designing copper (Cu)-based catalysts for converting CO2 into multicarbon molecules. By integrating concepts from molecular catalysts, the engineering of Cu-based catalysts aims to finely tailor the behavior of active sites on metallic surfaces, which remains a long-standing interest for the controlled design of novel electrocatalytic materials. In this context, we have recently explored strategies to enhance the conversion of CO2 into hydrocarbon molecules with two or more carbon atoms (C2+) via molecular doping or metal alloying. Despite impressive progress achieved through the development of flow cells with improved gas/liquid/solid interfaces, the realistic development of CO2 electrolyzers is still hindered by several fundamental challenges. These include understanding the local microenvironment, reducing the large operating voltage, and improving CO2 utilization efficiency.

In my presentation, I will review our recent progress in understanding and controlling the interface at various levels within CO2 electrolyzers, from the molecular scale to the complete electrolysis system.

报告人简介：

Damien Voiry obtained his thesis at the Paul Pascal Research Center (CRPP) of the University of Bordeaux in 2010. From 2011 to 2016, Damien was a postdoctoral associate in the group of Professor Manish Chhowalla from Rutgers University in the United States. Since Feb. 2016, he is a CNRS staff scientist at the Institut Européen des Membranes de Montpelier. His current research aims to explore the use of low dimensional materials for the fabrication multifunctional membranes for separation application as well as energy application.

References:

1 .H. Wu et al Selective and energy-efficient electrosynthesis of ethylene from CO2 by tuning the valence of Cu catalysts through aryl diazonium functionalization. Nature Energy, 2024, 9, 422–433

2 .K. Qi et al Unlocking direct CO2 electrolysis to C3 products via electrolyte supersaturation. Nature Catalysis, 2023 6, 319–33