Issue 43, 2022

Surface activated zinc-glutarate for the copolymerization of CO2 and epoxides

Abstract

Zinc-glutarate (ZnGA) is a promising catalyst that can form polymers from CO2 and epoxides, thereby contributing to the development of CO2 utilization technologies and future sustainability. One of the obstacles to commercializing ZnGA in polymer industries is its low catalytic activity. In this study, we introduced activated two-dimensional (2D) ZnGA to improve its catalytic activity in polymerization. The morphology-controlled 2D ZnGA was treated with H3Co(CN)6, and a porous granular-type Co-modified ZnGA (Co-ZnGA) was prepared. The morphology of 2D ZnGA is a prerequisite for the activation by H3Co(CN)6. The catalytic properties of Co-ZnGA were evaluated by copolymerization of various epoxides and CO2, and exhibited catalytic activity of 855, 1540, 1190, and 148 g g-cat−1 with propylene oxide, 1,2-epoxyhexane, 1,2-epoxybutane, and styrene oxide, respectively. This study provided a new strategy using 2D ZnGA instead of conventional ZnGA for increasing the catalytic activity in CO2 polymerization.

Graphical abstract: Surface activated zinc-glutarate for the copolymerization of CO2 and epoxides

Supplementary files

Article information

Article type
Paper
Submitted
15 Sep 2022
Accepted
18 Oct 2022
First published
19 Oct 2022

Dalton Trans., 2022,51, 16620-16627

Surface activated zinc-glutarate for the copolymerization of CO2 and epoxides

Y. Yang, J. D. Lee, Y. H. Seo, J. Chae, S. Bang, Y. Cheong, B. Y. Lee, I. Lee, S. U. Son and H. Jang, Dalton Trans., 2022, 51, 16620 DOI: 10.1039/D2DT03007A

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