The University of Kentucky Center for Applied Energy Research’s (UK CAER) project will develop three techniques to enable aqueous post-combustion carbon dioxide (CO2) capture technologies to meet the U.S. Department of Energy (DOE) performance and cost targets of 90% CO2 capture, 95% purity, at a cost of less than $30/tonne CO2 captured. To reduce the cost of CO2 capture, critical elements need to be addressed, including how to increase CO2 mass transfer (reduce capital cost), how to reduce solvent makeup (lower the operational cost) resulting from degradation, and how to address the potential environmental issues (permitting hurdles) from nitrosamine formation. The specific objectives of this project are to develop a 3D-printed dynamic polarity packing material with increased turbulent liquid flow and controlled gas-liquid bubble formation to increase CO2 mass transfer into amine solvents; investigate the impact of additives on the physical properties of solvents and their relationship to bubble formation to boost mass transfer while reducing aerosol formation; and destruct nitrosamines derived from amine solvents through development of an electrochemical treatment process. The project team will develop and fabricate customized dynamic packing using advanced manufacturing techniques, install the packing into UK CAER’s bench-scale (less than 0.1-megawatt-thermal [MWth]) CO2 capture unit, and conduct parametric and long-term testing with additive-modified solvents. Additionally, an electrochemical cell with stationary carbon electrodes will be designed and evaluated for the adsorption and decomposition of nitrosamines from wash water solutions collected from UK CAER’s 0.7-megawatt-electric (MWe) small pilot CO2 capture system located at Kentucky Utilities’ E.W. Brown Generating Station.