TY - JOUR
T1 - Modulation of imidazolium based ionic liquids for low temperature, reversible CO 2 capture
AU - Hillesheim, Patrick C.
AU - Dai, Sheng
PY - 2011
Y1 - 2011
N2 - In an effort in mitigate the release of CO 2 into the atmosphere, novel capture technologies are on the forefront of many scientific endeavors. Currently employed CO 2 sequestering technology relies on aqueous solutions of amino-alcohols. While these aqueous solutions are efficient at capture of CO 2, they suffer from significant volatility, toxicity, and energetic cost penalties. Imidazolium based ionic liquids have been shown to reversibly bind CO 2 when reacted with an organic super-base. Furthermore, the bound CO 2 has been shown to release upon heating of the ionic liquid, affording a reusable CO 2 capture system. The work presented herein constitutes our efforts to lower the temperature necessary to release bound CO 2. Systematic substitutions of electron withdrawing groups to the imidazolium moiety of an ionic liquid affords a measurable change to the temperature needed for CO 2 release. The synthesis and characterization of several novel ionic liquids and their reactivity to CO 2 is presented herein.
AB - In an effort in mitigate the release of CO 2 into the atmosphere, novel capture technologies are on the forefront of many scientific endeavors. Currently employed CO 2 sequestering technology relies on aqueous solutions of amino-alcohols. While these aqueous solutions are efficient at capture of CO 2, they suffer from significant volatility, toxicity, and energetic cost penalties. Imidazolium based ionic liquids have been shown to reversibly bind CO 2 when reacted with an organic super-base. Furthermore, the bound CO 2 has been shown to release upon heating of the ionic liquid, affording a reusable CO 2 capture system. The work presented herein constitutes our efforts to lower the temperature necessary to release bound CO 2. Systematic substitutions of electron withdrawing groups to the imidazolium moiety of an ionic liquid affords a measurable change to the temperature needed for CO 2 release. The synthesis and characterization of several novel ionic liquids and their reactivity to CO 2 is presented herein.
UR - http://www.scopus.com/inward/record.url?scp=84861054466&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:84861054466
SN - 0065-7727
JO - ACS National Meeting Book of Abstracts
JF - ACS National Meeting Book of Abstracts
T2 - 242nd ACS National Meeting and Exposition
Y2 - 28 August 2011 through 1 September 2011
ER -
