Advanced polymeric membranes for hydrogen purification and carbon dioxide capture
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CO2 capture, sequestration, and utilization is a critical path to mitigate the CO2 emissions to the environment. An important strategy is to decarbonize fossil fuels and produce H2 and CO2 at high temperatures. The resulting H2/CO2 mixture must be separated to obtain H2 for usage and CO2 for sequestration or utilization. Membrane technology has inherent advantages for gas separation because of its high energy-efficiency, small footprint, and ease of scale up. However, cost-effective materials with superior H2/CO2 separation properties at 150 °C or above are lacking. This dissertation addresses this gap via the development of novel membrane materials and the structural optimization of industrial thin film composite (TFC) membranes.