Catalytic Non-redox Carbon Dioxide Fixation in Cyclic Carbonates
Abstract
If cycloaddition of CO2 to epoxides is to become a viable non-redox CO2 fixation path, it is crucial that researchers develop an active, stable, selective, metal-free, reusable, and cost-effective catalyst. To this end, we report here a new catalyst that is based on imidazolinium functionality and is synthesized from an unprecedented, one-pot reaction of the widely available monomers terephthalaldehyde and ammonium chloride. We show that this covalent organic polymer (COP)-222 exhibits quantitative conversion and selectivity for a range of substrates under ambient conditions and without the need for co-catalysts, metals, solvent, or pressure. COP-222 is recyclable and has been demonstrated to retain complete retention of activity for over 15 cycles. Moreover, it is scalable to at least a kilogram scale. Finally, we determined the reaction mechanism by using quantum mechanics (density functional theory), showing that it involves nucleophilic-attack-driven epoxide ring opening (ND-ERO). This contrasts with the commonly assumed mechanism involving the concerted addition of chemisorbed CO2.
- Authors:
- Publication Date:
- Research Org.:
- California Institute of Technology (CalTech), Pasadena, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC); Saudi Aramco-KAIST CO2 Management Center; National Research Foundation of Korea (NRF)
- OSTI Identifier:
- 1735664
- Alternate Identifier(s):
- OSTI ID: 1579269; OSTI ID: 1801622
- Grant/Contract Number:
- SC0004993; NRF-2016R1A2B4011027; NRF-2017M3A7B4042140; NRF-2017M3A7B4042235
- Resource Type:
- Published Article
- Journal Name:
- Chem
- Additional Journal Information:
- Journal Name: Chem Journal Volume: 5 Journal Issue: 12; Journal ID: ISSN 2451-9294
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Chemistry; CO2 utilization; Cyclic carbonate; Heterogeneous catalysis; Non-redox carbon fixation; Imidazolinium chloride; Porous polymer; Density functional theory
Citation Formats
Subramanian, Saravanan, Oppenheim, Julius, Kim, Doyun, Nguyen, Thien S., Silo, Wahyu M. H., Kim, Byoungkook, Goddard, III, William A., and Yavuz, Cafer T. Catalytic Non-redox Carbon Dioxide Fixation in Cyclic Carbonates. United States: N. p., 2019.
Web. doi:10.1016/j.chempr.2019.10.009.
Subramanian, Saravanan, Oppenheim, Julius, Kim, Doyun, Nguyen, Thien S., Silo, Wahyu M. H., Kim, Byoungkook, Goddard, III, William A., & Yavuz, Cafer T. Catalytic Non-redox Carbon Dioxide Fixation in Cyclic Carbonates. United States. https://doi.org/10.1016/j.chempr.2019.10.009
Subramanian, Saravanan, Oppenheim, Julius, Kim, Doyun, Nguyen, Thien S., Silo, Wahyu M. H., Kim, Byoungkook, Goddard, III, William A., and Yavuz, Cafer T. Sun .
"Catalytic Non-redox Carbon Dioxide Fixation in Cyclic Carbonates". United States. https://doi.org/10.1016/j.chempr.2019.10.009.
@article{osti_1735664,
title = {Catalytic Non-redox Carbon Dioxide Fixation in Cyclic Carbonates},
author = {Subramanian, Saravanan and Oppenheim, Julius and Kim, Doyun and Nguyen, Thien S. and Silo, Wahyu M. H. and Kim, Byoungkook and Goddard, III, William A. and Yavuz, Cafer T.},
abstractNote = {If cycloaddition of CO2 to epoxides is to become a viable non-redox CO2 fixation path, it is crucial that researchers develop an active, stable, selective, metal-free, reusable, and cost-effective catalyst. To this end, we report here a new catalyst that is based on imidazolinium functionality and is synthesized from an unprecedented, one-pot reaction of the widely available monomers terephthalaldehyde and ammonium chloride. We show that this covalent organic polymer (COP)-222 exhibits quantitative conversion and selectivity for a range of substrates under ambient conditions and without the need for co-catalysts, metals, solvent, or pressure. COP-222 is recyclable and has been demonstrated to retain complete retention of activity for over 15 cycles. Moreover, it is scalable to at least a kilogram scale. Finally, we determined the reaction mechanism by using quantum mechanics (density functional theory), showing that it involves nucleophilic-attack-driven epoxide ring opening (ND-ERO). This contrasts with the commonly assumed mechanism involving the concerted addition of chemisorbed CO2.},
doi = {10.1016/j.chempr.2019.10.009},
journal = {Chem},
number = 12,
volume = 5,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 2019},
month = {Sun Dec 01 00:00:00 EST 2019}
}
https://doi.org/10.1016/j.chempr.2019.10.009
Web of Science