TY - JOUR
T1 - Direct Air Capture of CO2 by Physisorbent Materials
AU - Kumar, Amrit
AU - Madden, David G.
AU - Lusi, Matteo
AU - Chen, Kai Jie
AU - Daniels, Emma A.
AU - Curtin, Teresa
AU - Perry, John J.
AU - Zaworotko, Michael J.
N1 - Publisher Copyright:
© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2015/11/23
Y1 - 2015/11/23
N2 - Sequestration of CO2, either from gas mixtures or directly from air (direct air capture, DAC), could mitigate carbon emissions. Here five materials are investigated for their ability to adsorb CO2 directly from air and other gas mixtures. The sorbents studied are benchmark materials that encompass four types of porous material, one chemisorbent, TEPA-SBA-15 (amine-modified mesoporous silica) and four physisorbents: Zeolite 13X (inorganic); HKUST-1 and Mg-MOF-74/Mg-dobdc (metal-organic frameworks, MOFs); SIFSIX-3-Ni, (hybrid ultramicroporous material). Temperature-programmed desorption (TPD) experiments afforded information about the contents of each sorbent under equilibrium conditions and their ease of recycling. Accelerated stability tests addressed projected shelf-life of the five sorbents. The four physisorbents were found to be capable of carbon capture from CO2-rich gas mixtures, but competition and reaction with atmospheric moisture significantly reduced their DAC performance.
AB - Sequestration of CO2, either from gas mixtures or directly from air (direct air capture, DAC), could mitigate carbon emissions. Here five materials are investigated for their ability to adsorb CO2 directly from air and other gas mixtures. The sorbents studied are benchmark materials that encompass four types of porous material, one chemisorbent, TEPA-SBA-15 (amine-modified mesoporous silica) and four physisorbents: Zeolite 13X (inorganic); HKUST-1 and Mg-MOF-74/Mg-dobdc (metal-organic frameworks, MOFs); SIFSIX-3-Ni, (hybrid ultramicroporous material). Temperature-programmed desorption (TPD) experiments afforded information about the contents of each sorbent under equilibrium conditions and their ease of recycling. Accelerated stability tests addressed projected shelf-life of the five sorbents. The four physisorbents were found to be capable of carbon capture from CO2-rich gas mixtures, but competition and reaction with atmospheric moisture significantly reduced their DAC performance.
KW - adsorption
KW - physisorption
KW - temperature-programmed desorption
KW - ultramicroporous materials
KW - water stability
UR - http://www.scopus.com/inward/record.url?scp=84954349285&partnerID=8YFLogxK
U2 - 10.1002/anie.201506952
DO - 10.1002/anie.201506952
M3 - Article
AN - SCOPUS:84954349285
SN - 1433-7851
VL - 54
SP - 14372
EP - 14377
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 48
ER -