20/11/2021 Conférences

Webinar n°9 - Gold 2022 : Gold-based materials for environmental technologies

Dans le cadre de la conférence internationale Gold 2022, une série de webinars est organisée avec un neuvième séminaire virtuel organisé le Mercredi 24 Novembre à 17H (heure de Paris).
  • Aicheng Chen - Design and Electrochemical Study of Nanoporous Gold for Sensing and Environmental Applications

Abstract: Gold-based nanomaterials have received increasing attention in for a wide range of energy, environmental, and sensing applications. This is due to their unique physicochemical properties, chemical robustness, and some distinct catalytic activities. Recently, my research team has designed and synthesized a variety of gold-based nanostructured materials. In For this presentation, I will mainly focus mainly on the synthesis and modification of nanoporous Au electrodes, as well as their promising sensing and environmental applications. Mercury (Hg(II)) poses serious risks for human health and the environment; thus, it is of critical importance to develop a facile approach for the its sensitive detection of Hg(II). A nanoporous gold (NPG) microelectrode was made fabricated via an electrochemical alloying/dealloying process and modified with FeOOH nanoflakes.; Tthe resulting FeOOH/NPG microelectrode shows demonstrated excellent performance for the detection of Hg(II). The critical roles of Au nanomaterials in electrochemical sensing will be discussed. In additionFurthermore, there is a growing interest in the development ofing advanced catalysts for the electrochemical reduction of carbon dioxide (CO2) toward addressing the pressingrapidly intensifying climate change issue. Our studies have shownrevealed  that the three-dimensional nanoporous Au network structures exhibiteds high robust catalytic activity activities for the efficient electrochemical reduction of CO2 to CO. The significant impacts of the Au surface nanostructured surfaces on for the electrochemical reduction of CO2 will also be highlighted.

La participation à cet événement est gratuite sous réserve d'inscription.

Plus d'informations : http://www.gold2022.org/webinars