Self‐Assembled Metalloporphyrins–Magnesium Phosphate Hybrid Spheres as Efficient Catalysts for Cycloaddition of Carbon Dioxide
Self‐Assembled Metalloporphyrins–Magnesium Phosphate Hybrid Spheres as Efficient Catalysts for Cycloaddition of Carbon Dioxide
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DOI：
10.1002/slct.201901845
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发表时间：
2019-07
期刊：
影响因子：
2.1
通讯作者：
Tao Gan;Hao Zhang;Yifei Liu;Qian He;Ying Zhang;Xiaohui He;Hongbing Ji
中科院分区：
文献类型：
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作者：
Tao Gan;Hao Zhang;Yifei Liu;Qian He;Ying Zhang;Xiaohui He;Hongbing Ji
有机-无机杂化材料因其独特的微观结构和上级催化性能而受到广泛关注。在此，我们报道了一种简单的共沉淀法制备金属卟啉-金属磷酸盐杂化球，并采用二氧化碳与环氧化物的环加成反应作为探针反应来评估我们合成的催化剂的催化性能。由meso-四-（4-N-吡啶基）锌卟啉（ZnTPyP）-磷酸镁组成的杂化球表现出上级的催化性能，转化率远高于ZnTPyP和磷酸镁单独的催化剂，这可能是由于酸碱协同效应。同时，微球在循环实验中表现出优异的稳定性以及与广泛的基质的相容性。本工作为制备新型高效的多相催化复合材料提供了一条有价值的途径。
Due to the unique microstructure and superior catalytic properties, organic‐inorganic hybrid materials attract extensive attention. Herein, we report a facile coprecipitation method for the fabrication of metalloporphyrin–metal phosphate salt hybrid spheres, and the cycloaddition of carbon dioxide with epoxides is employed as probe reaction to evaluate the catalytic performance of our as‐synthesized catalysts. The hybrid spheres composed of meso‐tetra‐(4‐N‐pyridyl) zinc porphyrin (ZnTPyP)–magnesium phosphate exhibited superior catalytic performance, and the conversion was much higher than that of individual ZnTPyP and magnesium phosphate, probably because of the acid‐base synergistic effect. Meanwhile, the spheres showed excellent stability during the circulation experiments as well as compatibility with a wide scope of substrates. This work provides a valuable approach for the preparation of novel and efficient heterogeneous catalytic composites.