P-Campus-Ringvorlesung am 01.07.21
Am 1. Juli findet der letzte Vortrag der P-Campus-Ringvorlesung 2021 vor der Sommerpause statt. Dr. Yuya Hu vom Leibniz-Institut für Katalyse (LIKAT) referiert zum Thema "P-based organocatalysts: The application in CO2 valorization and its immobilization with plasma techniques". Die Vorlesung beginnt um 15:00 Uhr und wird dieses Mal auf Englisch gehalten.
Abstract
The valorization of CO2 has attracted much attention in recent years. The chemical fixation of CO2 remains challenging due to its thermodynamic stability and kinetic inertness. In this context the conversion of CO2 with energy-rich epoxides is an extensively studied reaction. The resulting cyclic carbonates have a wide range of applications. Recently, organocatalysts gained significant attention as potential catalysts for this reaction since they are cheap, non-toxic, and readily available with high potential of structural modification. Particularly, phosphorous-based organocatalysts showed superior activity. Herein bifunctional phosphonium salt catalysts for the CO2 valorization with epoxides will be discussed. Based on kinetic investigations and DFT calculations, the superior performance of these catalysts is rationalized, and the reaction mechanism was elucidated. Moreover, the immobilization of this high-efficient catalyst class was achieved for the first time with plasma techniques.