Electrochemical Carbon Dioxide Capture and Release with a Redox-Active Amine
Name
seo-et-al-2022-electrochemical-carbon-dioxide-capture-and-release-with-a-redox-active-amine.pdf
Description
Published version
Size
4.5 MB
Format
Adobe PDF
Checksum (MD5)
e6004b622f1794b511b261996a7fccec
Author(s)
Seo, Hyowon
Rahimi, Mohammad
Hatton, T Alan
Date Issued
January 12, 2022
Journal
Journal of the American Chemical Society
Publisher
American Chemical Society
Citation
Hyowon Seo, Mohammad Rahimi, and T. Alan Hatton. Journal of the American Chemical Society 2022 144 (5), 2164-2170.
Version
Final published version
Abstract
Anthropogenic carbon dioxide (CO2) emission from the combustion of fossil fuels is a major contributor to global climate change and ocean acidification. The implementation of carbon capture and storage technologies has been proposed to mitigate the buildup of this greenhouse gas in the atmosphere. Among these technologies, direct air capture is regarded as a plausible CO2 removal tool whereby net negative emissions can be achieved. However, the separation of CO2 from air is particularly challenging due to the ultradilute concentration of CO2 in the presence of high concentrations of dioxygen and water. Here, we report a robust electrochemical redox-active amine system demonstrating a high electron utilization (i.e., mole of CO2 per mole of electrons) of up to 1.25 with the capture of two CO2 molecules per amine in an aqueous solution with a work of 101 kJe per moles of CO2. The capture of CO2 directly from ambient air as the feed gas presented an electron utilization of 0.78.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivatives
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1021/jacs.1c10656
