A novel conjugated microporous polymer microspheres comprising cobalt porphyrins for efficient catalytic CO2 cycloaddition under ambient conditions. (April 2022)

• Record Type: Journal Article
• Authors: Zhang, Xiaofeng; Wang, Junhong; Bian, Yunpeng; Lv, Huijuan; Qiu, Bo; Zhang, Yuanyuan; Qin, Ruiyuan; Zhu, Dandan; Zhang, Sheng; Li, Dajian; Wang, Shimin; Mai, Wenpeng; Li, Yue; Li, Tao
• Is Part Of: Journal of CO₂ utilization. Volume 58(2022)
• Publication Date: 2022-04
• Subjects: Carbon dioxide fixation -- Porphyrin -- Porous organic polymer -- Heterogeneous catalysis; Carbon dioxide -- Periodicals; Carbon dioxide -- Environmental aspects -- Periodicals; Carbon dioxide mitigation -- Periodicals; Carbon dioxide; Carbon dioxide -- Environmental aspects; Carbon dioxide mitigation; Periodicals; 628.53205
• DOI: 10.1016/j.jcou.2022.101924
• Languages: English
• ISSNs: 2212-9820

Abstract

Abstract: Conversion of carbon dioxide to cyclic carbonates and other value-added commercial products is a promising strategy for the modern chemical industry and removing CO2 from the atmosphere. Catalysis with high-efficient is critical to the successful conversion of CO2 into cyclic carbonates. Porous organic polymers (POPs) with integrated metalloporphyrin structures are known as typical efficient catalysts for the cycloaddition of CO2 reaction. However, the high cost and energy consumption in synthesizing polymer still prohibit the application of CO2 conversion. Here, we have prepared porphyrin-based conjugated microporous polymer (Co-Por-POPs) microspheres by a simple self-polymerization strategy, which exhibit high catalytic performances in the CO2 cycloaddition reactions with free solvent under atmospheric pressure at room temperature. Even using dilute CO2 (15% CO2 in N2 ), a TOF up to 8.1 h −1 could be afforded under ambient conditions (25 °C, 1 bar) by Co-Por-POP-2. This study highlights the potential for sustainable industrial syntheses of cyclic carbonates. Graphical Abstract: ga1 We constructed the porphyrin-based conjugated microporous polymers (Co-Por-POPs) nanosphere by a simple self-polymerization strategy, which exhibited high catalytic performances for the CO2 cycloaddition reactions. Highlights: The porphyrin-based conjugated microporous polymer microspheres were constructed by using a one-pot bottom-up approach. The Por-POPs possess the high surface area, abundant microporosity, and high CO2 adsorption uptake. The Co-Por-POPs exhibited high catalytic performances and recyclability (up to 10 times) under ambient conditions. Even using dilute CO2 (15% CO2 in N2 ), TOF up to 8.1 h −1 could be afforded under ambient conditions by Co-Por-POP-2.