RSA CE&C 2015-2021 Group descriptions

Chemical and Process Technology (CPT) 25 2. Control of functionality Building on our expertise on functional membranes and coatings, we have rigorously investigated the relationships between layer-by-layer assembly chemistry and themembrane performance of such layer-by-layer membranes. We defined correlations to tune membrane separation characteristics based on selected chemistries and layer build-up conditions for the treatment and purification of aqueous streams. 5, 6 Focusing on gas separations, we systematically investigated the effect of molecular organic framework (MOF) distribution, aspect ratio and functionality and elucidated the main aspects that determine the gas separation performance of such mixed matrix membranes. 7 Moreover, we expanded existing research on high-pressure CO 2 separation to supercritical conditions correlating membrane materials properties to membrane plasticization. 8 Research in the group on electrochemical energy storage has recently grown exponentially. In very close collaboration with industry, we were able to fundamentally investigate selective mass transport and material degradation mechanisms in hydrogen bromine flow batteries while simultaneously performing industrially relevant performance and applications studies. 9, 10 3. Module, reactor and process design and performance evaluation For a long time, the use of an electrical field as a driving force to desalinate seawater has been investigated but considered economically unfeasible despite different conceptual designs. Meticulous investigations into different multistage membrane-electrode configurations have proven the viability of electrodialysis for drinking water production. 11, 12 Another major achievement of our group has been the detailed characterization of the gas separation and gas transport properties of polymer membranes under supercritical CO 2 pressure. Plasticization effects in the membrane and the transition of CO 2 from a gaseous to a supercritical state have been taken into account. Sophisticated transport characterization and data analysis has resulted in a fundamental theoretical understanding of gas transport below, around and well above supercritical CO 2 conditions. 13, 14