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Recent Advances on the Preparation and Catalytic Applications of Metal Complexes Supported-Mesoporous Silica MCM-41 (Review)
Journal of Inorganic and Organometallic Polymers and Materials ( IF 3.9 ) Pub Date : 2020-08-04 , DOI: 10.1007/s10904-020-01689-1
Fatima Habeche , Mohammed Hachemaoui , Adel Mokhtar , Karim Chikh , Fadila Benali , Amel Mekki , Farouk Zaoui , Zakaria Cherifi , Bouhadjar Boukoussa

Heterogeneous catalysts were used in several production processes for the synthesis of different products such as chemicals, drugs, energy resources, fuels and other specific products. In recent years, mesoporous silica, in particular MCM-41 was widely used in several fields, including catalysis and catalytic support, due to its remarkable textural properties. This material cannot be used directly in catalysis due to its inner surface containing only silanol groups. Therefore, several attempts were proposed in order to obtain an effective catalyst. The immobilization of metal complexes on the surface of mesoporous silica is one of the most popular methods. The metal complexes immobilized on the mesoporous silica MCM-41 exhibit significant catalytic activities due to the increased dispersion of the active sites and the faster diffusion of large organic molecules. The strong interactions between the metal and the ligand generate significant stability for this kind of catalyst, which allows them to be reused in several cycles without losing their efficiency. This review mainly discusses the immobilization strategies of different metal complexes supported on the mesoporous silica MCM-41. A recent study was presented and well detailed based on the different preparation methods, catalytic applications and the stability of metal complexes supported on mesoporous silica MCM-41.



中文翻译:

金属配合物介孔二氧化硅MCM-41的制备及其催化应用的最新进展(综述)

多相催化剂被用于多种生产过程中,以合成不同的产品,例如化学品,药物,能源,燃料和其他特定产品。近年来,中孔二氧化硅,特别是MCM-41,由于其显着的质地特性而被广泛用于包括催化和催化载体在内的多个领域。该材料的内表面仅包含硅烷醇基,因此无法直接用于催化。因此,提出了几种尝试以获得有效的催化剂。将金属络合物固定在中孔二氧化硅表面上是最流行的方法之一。固定在中孔二氧化硅MCM-41上的金属络合物由于活性位点的分散增加和大有机分子的更快扩散而显示出显着的催化活性。金属和配体之间的强相互作用为这种催化剂产生了显着的稳定性,这使它们可以在不降低效率的情况下循环使用。这篇综述主要讨论了介孔二氧化硅MCM-41上负载的不同金属络合物的固定化策略。基于不同的制备方法,催化应用和介孔二氧化硅MCM-41负载的金属配合物的稳定性,最近进行了详细的研究。这使得它们可以在不降低效率的情况下重复使用几个周期。这篇综述主要讨论了介孔二氧化硅MCM-41上负载的不同金属络合物的固定化策略。基于不同的制备方法,催化应用和介孔二氧化硅MCM-41负载的金属配合物的稳定性,最近进行了详细的研究。这使得它们可以在不降低效率的情况下重复使用几个周期。这篇综述主要讨论了介孔二氧化硅MCM-41上负载的不同金属络合物的固定化策略。基于不同的制备方法,催化应用和介孔二氧化硅MCM-41负载的金属配合物的稳定性,最近进行了详细的研究。

更新日期:2020-08-04
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