title: Carbonic anhydrase mimics for enhanced CO2 absorption in an amine-based capture solvent.
abstract: Two new small-molecule enzyme mimics of carbonic anhydrase were prepared and characterized. These complexes contain the salen-like ligand bis(hydroxyphenyl)phenanthroline. This ligand is similar to the salen-type ligands previously incorporated into carbonic anhydrase mimics but contains no hydrolyzable imine groups and therefore serves as a promising ligand scaffold for the synthesis of a more robust CO2 hydration catalyst. These homogeneous catalysts were investigated for CO2 hydration in concentrated primary amine solutions through which a dilute CO2 (14%) fluid stream was flowed and showed exceptional activity for increased CO2 absorption rates.
authors.affiliation: Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA. susan.odom@uky.edu.
authors.forename: Rachael A
authors.initials: RA
authors.lastname: Kelsey
authors.affiliation: Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA. susan.odom@uky.edu.
authors.forename: David A
authors.initials: DA
authors.lastname: Miller
authors.affiliation: Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA. susan.odom@uky.edu.
authors.forename: Sean R
authors.initials: SR
authors.lastname: Parkin
authors.affiliation: Center for Applied Energy Research, University of Kentucky, Lexington, KY 40511-8410, USA. cameron.lippert@uky.edu.
authors.forename: Kun
authors.initials: K
authors.lastname: Liu
authors.affiliation: Center for Applied Energy Research, University of Kentucky, Lexington, KY 40511-8410, USA. cameron.lippert@uky.edu.
authors.forename: Joe E
authors.initials: JE
authors.lastname: Remias
authors.affiliation: Division, Lawrence Livermore National Laboratory, Livermore, CA 94550-9234, USA. lightstone1@llnl.gov.
authors.forename: Yue
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Division, Lawrence Livermore National Laboratory, Livermore, CA 94550-9234, USA. lightstone1@llnl.gov.
authors.forename: Felice C
authors.initials: FC
authors.lastname: Lightstone
authors.affiliation: Center for Applied Energy Research, University of Kentucky, Lexington, KY 40511-8410, USA. cameron.lippert@uky.edu and Department of Mechanical Engineering, Biosciences and Biotechnology, University of Kentucky, Lexington, 40511-8410, KY, USA. kunlei.liu@uky.edu.
authors.forename: Kunlei
authors.initials: K
authors.lastname: Liu
authors.affiliation: Center for Applied Energy Research, University of Kentucky, Lexington, KY 40511-8410, USA. cameron.lippert@uky.edu.
authors.forename: Cameron A
authors.initials: CA
authors.lastname: Lippert
authors.affiliation: Department of Chemistry, University of Kentucky, Lexington, KY 40506-0055, USA. susan.odom@uky.edu.
authors.forename: Susan A
authors.initials: SA
authors.lastname: Odom
mesh_terms: D000327:Adsorption; D000588:Amines / Q000737:chemistry*; D040761:Biomimetic Materials / Q000737:chemistry*; D002245:Carbon Dioxide / Q000302:isolation & purification*; D002256:Carbonic Anhydrases / Q000737:chemistry*; D002384:Catalysis; D008024:Ligands; D008958:Models, Molecular; D010618:Phenanthrolines / Q000737:chemistry*; D012997:Solvents / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D000588:Amines; D008024:Ligands; D010618:Phenanthrolines; D012997:Solvents; D014867:Water; D002245:Carbon Dioxide; D002256:Carbonic Anhydrases