Ionic liquids (IL) are a relatively young class of solvents that show significant promise to outperform their aqueous predecessors as an electrolytic media for electrochemical CO2 reduction. Despite several advantages over aqueous based systems, ILs have seen limited applications in this field. Here, we propose mechanisms for increasing CO2 diffusion constants in several classes of bulk and thin IL films supported on copper and silver surfaces. Data from electrochemistry, IR, Raman, Ellipsometry, and dynamic dewetting techniques will be reported.  Dynamic dewetting presents a novel method to produce thin films of these ionic liquids on solid metal substrates, where interfacial films can be spectroscopically probed with various sampling geometries. This work is framed with the long-term goal of determining the reaction mechanisms associated with electrochemical reduction of CO2 in ionic liquids. Moreover, this work will aid in the general characterization of ionic liquid solvents for myriad other areas of need.

Increasing diffusion rates of CO<sub>2</sub> in ionic liquids: Toward CO<sub>2</sub> recycling

246th National Meeting (2013)

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Increasing diffusion rates of CO2 in ionic liquids: Toward CO2 recycling

Increasing diffusion rates of CO₂ in ionic liquids: Toward CO₂ recycling