Novel conjugated microporous frameworks based on adamantane (CMF-Ads) have been successfully synthesized under mild conditions. Eight-arm tetraphenyl “knots” and a conjugated π-electron skeleton endowed the target CMF-Ads with ultra-high thermal stability (up to 500 °C), high surface area (up to 907 m2 g−1), excellent CO2 uptake capacity of 15.13 wt % at 273 K and 1 bar, as well as superior organic vapor (benzene, hexane) adsorption. The ultra-high gas uptake capacity and selectivity of these CMF-Ads herein exceeds most conjugated microporous frameworks reported to date, highlighting their potential as materials for clean energy application.
Bibliographical note© 2018, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
This work was supported by National Natural Science Foundation of China (No. 21476051), Science and Technology Program of Guangdong Province (No. 2016A050502057), Science and Technology Program of Guangzhou City (No. 201704030075 and No. 201604010015) and Natural Science Foundation of Guangdong Province (No. 2016A030310349). PDT thanks the State Administration for Foreign Experts Affairs and the Royal Society of Chemistry for a Visiting Researcher Programme grant to China.
- Conjugated microporous frameworks
- Carbon-dioxide capture
- π-conjugated skeletons