Design, Synthesis, and Evaluation of Nonaqueous Silylamines for Efficient CO2 Capture

Authors

  • Jackson R. Switzer,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
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  • Amy L. Ethier,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
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  • Emily C. Hart,

    1. School of Chemistry and Biochemistry, Georgia Institute of Technology, 911 Atlantic Drive, Atlanta, GA 30332 (USA)
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  • Kyle M. Flack,

    1. School of Chemistry and Biochemistry, Georgia Institute of Technology, 911 Atlantic Drive, Atlanta, GA 30332 (USA)
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  • Amber C. Rumple,

    1. School of Chemistry and Biochemistry, Georgia Institute of Technology, 911 Atlantic Drive, Atlanta, GA 30332 (USA)
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  • Jordan C. Donaldson,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
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  • Ashley T. Bembry,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
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  • Owen M. Scott,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
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  • Elizabeth J. Biddinger,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
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  • Manish Talreja,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
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  • Myoung-Geun Song,

    1. School of Chemistry and Biochemistry, Georgia Institute of Technology, 911 Atlantic Drive, Atlanta, GA 30332 (USA)
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  • Pamela Pollet,

    1. School of Chemistry and Biochemistry, Georgia Institute of Technology, 911 Atlantic Drive, Atlanta, GA 30332 (USA)
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  • Prof. Charles A. Eckert,

    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
    2. School of Chemistry and Biochemistry, Georgia Institute of Technology, 911 Atlantic Drive, Atlanta, GA 30332 (USA)
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  • Prof. Charles L. Liotta

    Corresponding author
    1. School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)
    2. School of Chemistry and Biochemistry, Georgia Institute of Technology, 911 Atlantic Drive, Atlanta, GA 30332 (USA)
    • School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Street, Atlanta, GA 30332 (USA)

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Abstract

A series of silylated amines have been synthesized for use as reversible ionic liquids in the application of post-combustion carbon capture. We describe a molecular design process aimed at influencing industrially relevant carbon capture properties, such as viscosity, temperature of reversal, and enthalpy of regeneration, while maximizing the overall CO2-capture capacity. A strong structure–property relationship among the silylamines is demonstrated in which minor structural modifications lead to significant changes in the bulk properties of the reversible ionic liquid formed from reaction with CO2.

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