Hierarchically Mesoporous o‐Hydroxyazobenzene Polymers: Synthesis and Their Applications in CO2 Capture and Conversion |
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| Authors: | Guipeng Ji Dr. Zhenzhen Yang Dr. Hongye Zhang Dr. Yanfei Zhao Dr. Bo Yu Zhishuang Ma Prof. Dr. Zhimin Liu |
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| Affiliation: | 1. Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid, Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China;2. University of Chinese Academy of Sciences, Beijing, China |
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| Abstract: | The synthesis of hierarchically mesoporous polymers with multiple functionalities is challenging. Herein we reported a template‐free strategy for synthesis of phenolic azo‐polymers with hierarchical porous structures based on diazo‐coupling reaction in aqueous solution under mild conditions. The resultant polymers have surface areas up to 593 m2 g?1 with the mesopore ratio of >80 %, and a good ability to complex with metal ions, such as Cu2+, Zn2+,Ni2+, achieving a metal loading up to 26.24 wt %. Moreover, the polymers complexed with Zn showed excellent performance for catalyzing the reaction of CO2 with epoxide, affording a TOF of 2570 h?1 in the presence of tetrabutyl ammonium bromide (7.2 mol %). The polymer complexed with Cu could catalyze the oxidation of alcohol with high efficiency. |
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| Keywords: | CO2 conversion diazo-coupling reaction o-hydroxyazobenzene porous organic polymers |
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