CO(2) capture by a task-specific ionic liquid |
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Authors: | Bates Eleanor D Mayton Rebecca D Ntai Ioanna Davis James H |
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Affiliation: | Department of Chemistry, University of South Alabama, Mobile, Alabama 36688, USA. |
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Abstract: | Reaction of 1-butyl imidazole with 3-bromopropylamine hydrobromide, followed by workup and anion exchange, yields a new room temperature ionic liquid incorporating a cation with an appended amine group. The new ionic liquid reacts reversibly with CO2, reversibly sequestering the gas as a carbamate salt. The new ionic liquid, which can be repeatedly recycled in this role, is comparable in efficiency for CO2 capture to commercial amine sequestering reagents, and yet is nonvolatile and does not require water to function. |
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