Abstract
Methyl- and nitro-group-co-functionalized CAU-10, namely CAU-10-CH3-NO2, was synthesized and compared with mono-functionalized CAU-10 derivatives, CAU-10-CH3 and CAU-10-NO2, as a CO2 adsorbent. In this study, we report that methyl and/or nitro groups could increase CO2 performance compared to that of bare CAU-10. It is supposed that the hydrophobic character of the methyl group might support selective CO2 uptake in humid conditions. Breakthrough experiments demonstrate that CAU-10-CH3-NO2, which is more hydrophobic than CAU-10-NO2, reduced the degradation of adsorption performance under dry conditions. CAU-10-CH3-NO2 was considered a candidate suitable for an actual post-combustion CO2 adsorption process.
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Funding
This research was financially supported by the Ministry of Trade, Industry, and Energy (MOTIE) and by the Korea Institute for Advancement of Technology (KIAT) through the International Cooperative R&D program (P0016152).
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Sran, B.S., Hwang, J.W., Chitale, S.K. et al. Post-combustion CO2 capture of methyl and nitro mixed-linker CAU-10. MRS Communications 13, 343–349 (2023). https://doi.org/10.1557/s43579-023-00351-4
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DOI: https://doi.org/10.1557/s43579-023-00351-4