Sorbents for the Direct Capture of CO2 from Ambient Air

Xiaoyang Shi; Hang Xiao; Habib Azarabadi; Juzheng Song; Xiaolong Wu; Xi Chen; Klaus S Lackner

doi:10.1002/anie.201906756

Sorbents for the Direct Capture of CO₂ from Ambient Air

Angew Chem Int Ed Engl. 2020 Apr 27;59(18):6984-7006. doi: 10.1002/anie.201906756. Epub 2020 Feb 20.

Authors

Xiaoyang Shi^{1

2}, Hang Xiao², Habib Azarabadi¹, Juzheng Song³, Xiaolong Wu², Xi Chen^{2

4}, Klaus S Lackner¹

Affiliations

¹ School of Sustainable Engineering & Built Environment, Arizona State University, Tempe, AZ, 85287, USA.
² Earth Engineering Center, Center for Advanced Materials for Energy and Environment, Department of Earth and Environmental Engineering, Columbia University, New York, NY, 10027, USA.
³ ICAM, School of Aerospace, Xi'an Jiaotong University, Xi'an, 710049, China.
⁴ School of Chemical Engineering, Northwest University, Xi'an, 710069, China.

PMID: 31379037
DOI: 10.1002/anie.201906756

Abstract

The urgency to address global climate change induced by greenhouse gas emissions is increasing. In particular, the rise in atmospheric CO₂ levels is generating alarm. Technologies to remove CO₂ from ambient air, or "direct air capture" (DAC), have recently demonstrated that they can contribute to "negative carbon emission." Recent advances in surface chemistry and material synthesis have resulted in new generations of CO₂ sorbents, which may drive the future of DAC and its large-scale deployment. This Review describes major types of sorbents designed to capture CO₂ from ambient air and they are categorized by the sorption mechanism: physisorption, chemisorption, and moisture-swing sorption.

Keywords: atmospheric CO2; carbon dioxide; direct air capture; sorbents.

Publication types

Review

Grants and funding

Center for Negative Carbon Emissions/Arizona State University