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Updated: Sep 11, 2025

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
Published on: November 9, 2019
CO2 Fixation and Release Mediated by Carbonate-Based Coordination Polymers
Kentaro Kadota1, Sae Matsui1, Ayoub Traverson2
1Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-Ku, Kyoto 606-8502, Japan.
Abstract:
We demonstrate the synthesis of 11 carbonate (CO32-)-based coordination polymers (CPs) from CO2 and reveal the structure-property correlation of CO2 release upon decarbonation. The decarbonation temperatures (TCO2) are tunable as factors of the electronegativity of metal ions and the coordination numbers of CO32- within the CP lattices. The structural tunability of CO32--based CPs enables high gravimetric CO2 contents (25-30 wt %) and TCO2 in the low-temperature range where low-grade waste heat can be utilized (170-230 °C). The decarbonation mechanism of CO32--based CPs, which produces a discrete metal complex, is revealed by 3D electron diffraction and variable-temperature synchrotron X-ray diffraction.
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