Post-combustion carbon capture has traditionally involved the use of aqueous alkanol amine solutions. The regeneration of such systems, however, can be costly and energy intensive. We have developed an alternative system utilizing silylated alkylamines to reversibly capture CO2 under near ambient conditions. The silyl amines developed capture CO2 through chemical reaction to form reversible ionic liquids (RevIL). RevILs utilize no added water and are tunable by molecular design allowing us to influence industrially relevant carbon capture properties such as viscosity, temperature of reversal, and enthalpy of regeneration, while maximizing overall CO2 capture capacity. We demonstrate a strong structure-property relationship among the silyl amines where minor structural modifications lead to significant changes in the bulk properties of the RevIL.

Design, synthesis, and evaluation of nonaqueous silylamines for efficient CO<sub>2</sub> capture

248th National Meeting (2014)

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Design, synthesis, and evaluation of nonaqueous silylamines for efficient CO2 capture

Design, synthesis, and evaluation of nonaqueous silylamines for efficient CO₂ capture