Jump to main content
Jump to site search

Issue 39, 2018
Previous Article Next Article

Humidity-swing mechanism for CO2 capture from ambient air

Author affiliations

Abstract

A humidity-swing polymeric sorbent captures CO2 from ambient air at room temperature simply by changing the humidity level. To date there has been no direct experimental evidence to characterize the chemical mechanism for this process. In this report we describe the use of solid-state NMR to study the humidity-swing CO2 absorption/desorption cycle directly. We find that at low humidity levels CO2 is absorbed as HCO3. At high humidity levels, HCO3 is replaced by hydrated OH and the absorbed CO2 is released.

Graphical abstract: Humidity-swing mechanism for CO2 capture from ambient air

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Mar 2018, accepted on 24 Apr 2018 and first published on 24 Apr 2018


Article type: Communication
DOI: 10.1039/C8CC02109K
Citation: Chem. Commun., 2018,54, 4915-4918
  •   Request permissions

    Humidity-swing mechanism for CO2 capture from ambient air

    H. Yang, M. Singh and J. Schaefer, Chem. Commun., 2018, 54, 4915
    DOI: 10.1039/C8CC02109K

Search articles by author

Spotlight

Advertisements