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Hierarchical Porous and Zinc‐Ion‐Crosslinked PIM‐1 Nanocomposite as a CO 2 Cycloaddition Catalyst with High Efficiency
Author(s) -
Pan Ying,
Zhai Xiaofei,
Yin Jian,
Zhang Tianqi,
Ma Liujia,
Zhou Yi,
Zhang Yufeng,
Meng Jianqiang
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201803066
Subject(s) - cycloaddition , catalysis , epoxide , zinc , materials science , chemical engineering , context (archaeology) , ionic bonding , nanocomposite , porosity , polymer , heterogeneous catalysis , propylene oxide , ion , chemistry , organic chemistry , nanotechnology , copolymer , composite material , metallurgy , paleontology , ethylene oxide , engineering , biology
CO 2 cycloaddition to epoxides is an effective and economical utilization method to alleviate the current excessive CO 2 emission situation. The development of catalysts with both high catalytic efficiency and high recyclability is necessary but challenging. In this context, a heterogeneous catalyst was synthesized based on a zinc‐ion‐crosslinked polymer with intrinsic microporosity (PIM‐1). The high microporosity of PIM‐1 promoted a high Zn 2+ loading rate. Additionally, the relatively stable ionic bond formed between Zn 2+ and the PIM‐1 framework through electrostatic interaction ensured high loading stability. In the process of CO 2 cycloaddition with propylene epoxide, an optimized conversion of 90 % with a turnover frequency as high as 9533 h −1 could be achieved within 0.5 h at 100 °C and 2 MPa. After 15 cycles, the catalytic efficiency did not demonstrate a significant decline, and the catalyst was able to recover most of its activity after Zn 2+ reloading. This work thereby provides a strategically designed CO 2 conversion catalyst based on an ionic crosslinked polymer with intrinsic microporosity.