Nano-sized polydopamine-based biomimetic catalyst for the efficient synthesis of cyclic carbonates |
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| Authors: | Zifeng Yang Jian Sun Xiaomin Liu Qian Su Ying Liu Qian Li Suojiang Zhang |
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| Affiliation: | 1. Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China;2. School of Chemistry and Chemical Engineering, Henan University, Kaifeng 475001, PR China |
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| Abstract: | Polydopamine (PDA) is a biocompatible and biomimetic material. Herein, nano-sized PDA sphere was prepared and the combination of alkali metal halide and PDA was investigated as a catalyst for the synthesis of cyclic carbonates from epoxide and carbon dioxide. It was found that the activity of PDA could be obviously enhanced in the presence of alkali metal salts. After reaction, the catalyst and the products could be separated easily, and the catalyst was reusable. The origin of the high catalytic efficiency and the reaction mechanism were also discussed. |
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| Keywords: | Polydopamine Carbon dioxide Cyclic carbonates Synergistic catalysis Alkali metal halide |
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