Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 30, Pages 33759-33764Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c08078
Keywords
ultramicroporous materials; carbon dioxide; adsorption; separation; polymer coating
Funding
- SFI [12/RC/2275-P2, 15/SIRG/3552, 13/RP/B2549, 12/RI/2345, 13/IA/1980]
- QNRF [NPRP10-0107-170119]
- Science Foundation Ireland (SFI) [15/SIRG/3552] Funding Source: Science Foundation Ireland (SFI)
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Physisorbent metal-organic materials (MOMs) have shown benchmark performance for highly selective CO2 capture from bulk and trace gas mixtures. However, gas stream moisture can be detrimental to both adsorbent performance and hydrolytic stability. One of the most effective methods to solve this issue is to transform the adsorbent surface from hydrophilic to hydrophobic. Herein, we present a facile approach for coating MOMs with organic polymers to afford improved hydrophobicity and hydrolytic stability under humid conditions. The impact of gas stream moisture on CO2 capture for the composite materials was found to be negligible under both bulk and trace CO2 capture conditions with significant improvements in regeneration times and energy requirements.
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