Citation: Ruqun Guan, Xiaoming Zhang, Fangfang Chang, Nan Xue, Hengquan Yang. Incorporation of flexible ionic polymers into a Lewis acid-functionalized mesoporous silica for cooperative conversion of CO₂ to cyclic carbonates[J]. Chinese Journal of Catalysis, ;2019, 40(12): 1874-1883. doi: S1872-2067(19)63340-1 shu

Incorporation of flexible ionic polymers into a Lewis acid-functionalized mesoporous silica for cooperative conversion of CO₂ to cyclic carbonates

School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, Shanxi, China

Received Date: 5 February 2019
Revised Date: 25 March 2019

Fund Project: This work was supported by the National Natural Science Foundation of China (201573136, 21603128, U1510105), the Natural Science Foundation for Young Scientists of Shanxi Province (2016021034), and the Scientific Research Start-up Funds of Shanxi University (RSC723).

A rational integration of multiple reactive centers into a combined unit to facilitate their cooperative effects is a smart approach for accelerating the catalytic activity. Here, to achieve this goal, linear imidazolium-based ionic polymers were confined into the nanopores of mesoporous silica nanospheres anchored with homogeneously distributed zinc salts. Owing to the flexible character and the reinforced cooperative effects of the ionic liquid (nucleophile) and zinc species (Lewis acid) in the confined mesoporous structure, the resultant composite exhibited dramatically improved catalytic performance in the cycloaddition of CO₂ with epoxides to form cyclic carbonates. This was in contrast to that observed for the individual catalytic components. Moreover, such a solid catalyst could be easily recovered and reused four times without a significant loss of activity.
- Mesoporous silica,
- Flexible ionic polymer,
- Cooperative effects,
- CO₂ utilization,
- Heterogeneous catalysis
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Incorporation of flexible ionic polymers into a Lewis acid-functionalized mesoporous silica for cooperative conversion of CO2 to cyclic carbonates

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com

Incorporation of flexible ionic polymers into a Lewis acid-functionalized mesoporous silica for cooperative conversion of CO₂ to cyclic carbonates