Journal
CHEMSUSCHEM
Volume 10, Issue 11, Pages 2534-2541Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201700536
Keywords
carbon dioxide fixation; heterogeneous catalysis; ionic liquids; polymers; porphyrinoids
Funding
- National Natural Science Foundation of China [21676306, 21425627]
- Natural Science Foundation of Guangdong Province [2016A030310211]
- National Key Research and Development Program of China [2016YFA0602900]
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A facile and one-pot synthesis of metalloporphyrin-based ionic porous organic polymers (M-iPOPs) was performed through a typical Yamamoto-Ullmann coupling reaction for the first time. We used various characterization techniques to demonstrate that these strongly polar Al-based materials (Al-iPOP) possessed a relatively uniform microporosity, good swellable features, and a good CO2 capture capacity. If we consider the particular physicochemical properties, heterogeneous Al-iPOP, which bears both a metal active center and halogen anion, acted as a bifunctional catalyst for the solvent-and additive-free synthesis of cyclic carbonates from various epoxides and CO2 with an excellent activity and good recyclability under mild conditions. Interestingly, these CO2-philic materials could catalyze the cycloaddition reaction smoothly by using simulated flue gas (15% CO2 in N-2, v/v) as a raw material, which indicates that a stable local microenvironment and polymer swellability might promote the transformation. Thus, the introduction of polar ionic liquid units into metalloporphyrin-based porous materials is regarded as a promising new strategy for the chemical conversion of CO2.
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