Hierarchically Mesoporous o‐Hydroxyazobenzene Polymers: Synthesis and Their Applications in CO2 Capture and Conversion,Angewandte Chemie International Edition

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Hierarchically Mesoporous o‐Hydroxyazobenzene Polymers: Synthesis and Their Applications in CO2 Capture and Conversion
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2016-05-20 , DOI: 10.1002/anie.201602667
Guipeng Ji _{1,

2} , Zhenzhen Yang ₁ , Hongye Zhang ₁ , Yanfei Zhao ₁ , Bo Yu ₁ , Zhishuang Ma _{1,

2} , Zhimin Liu _{1,

2}

Affiliation

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.

中文翻译：

分层中孔邻羟基偶氮苯聚合物：合成及其在二氧化碳捕获和转化中的应用

具有多种功能的分级介孔聚合物的合成是具有挑战性的。在此，我们报告了在温和条件下基于重氮偶合反应在水性溶液中合成具有分级多孔结构的酚类偶氮聚合物的无模板策略。所得聚合物的表面积最大为593 m ² g ^-1，中孔比率> 80％，并且具有与金属离子（例如Cu 2 ⁺，Zn 2 ⁺，Ni ^2+）络合的良好能力，从而获得了金属负载量高达26.24 wt％。此外，与Zn络合的聚合物表现出优异的催化CO ₂与环氧化物反应的性能，TOF为2570 h ^-1在四丁基溴化铵（7.2摩尔％）的存在下。与铜配合的聚合物可以高效地催化醇的氧化。

更新日期：2016-05-20

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