Abstract
A growing population striving for higher standards of living are stressing water resources around the globe. Because of the anticipated water scarcity and security challenges, water futures began trading as a commodity, like gold, oil and other precious commodities, on the stock market in late 2020. Ensuring water security necessitates water treatment and remediation technologies that are low cost, scalable, and energy efficient. Furthermore, advances in electrochemical separations technologies have been useful for targeted nutrient recovery, carbon valorization, and pollutant removal from liquids. In this talk, I will present our group’s work on addressing ohmic related resistances in membrane capacitive deionization and electrodeionization with new membrane and porous ion conducting materials. Borrowing from advances in fuel cell electrode binder technology, we show that solution processable ionomers are versatile for arriving at a new class of porous ionic conductors that address spacer channel resistances in the said deionization platforms under low TDS (total dissolved solids) concentrations. The new materials improve the separation efficiency and energy efficiency of deionization processes.
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