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Recent progresses in polymer supported cobalt complexes/nanoparticles for sustainable and selective oxidation reactions
Molecular Catalysis ( IF 3.9 ) Pub Date : 2020-01-31 , DOI: 10.1016/j.mcat.2020.110775
Mahmoud Nasrollahzadeh , Zahra Nezafat , Nayyereh Sadat Soheili Bidgoli , Nasrin Shafiei

Polymers play an important role in the fabrication of heterogeneous (nano)catalysts applied for many chemical syntheses and conversions. The excellent properties of polymers, for instance, high thermal stability, large surface area, simplicity of modification and high mechanical strength make them ideal catalyst supports. To reduce the toxicity of metal nanoparticles (MNPs) or complexes, a new method has been developed in recent years for the fabrication of supported MNPs. Synthesis of MNPs or metallic complexes on polymer support has been applied as a prospective solution to avoid the accumulation of waste MNPs in the medium via a recovery process. The blending of nanoparticles with polymers forms nanocomposites with unique properties due to their specific shape, size, and nature. This review is an overview of the current developments in manufacturing, characterization, and applications of cobalt (Co) complexes/NPs decorated on the surface of various polymers for the catalytic oxidation of mercaptans, alcohols, alkenes, etc. using various oxidizing agents such as H2O2, O2, TBHP (tert-butyl hydroperoxide), etc. Eventually, we envision the current/future challenges and opportunities for these polymer-supported cobalt (nano)catalysts in the field of chemical transformations.



中文翻译:

聚合物负载的钴配合物/纳米粒子在可持续和选择性氧化反应中的最新进展

聚合物在用于多种化学合成和转化的非均相(纳米)催化剂的制造中起着重要作用。聚合物的优异性能,例如高的热稳定性,大的表面积,改性的简便性和高的机械强度,使其成为理想的催化剂载体。为了降低金属纳米颗粒(MNP)或配合物的毒性,近年来已开发出一种新的方法来制备支持的MNP。MNP或在聚合物载体上的金属配合物的合成已被用作一种前瞻性解决方案,以避免通过介质在介质中堆积废MNP。恢复过程。纳米粒子与聚合物的共混物由于其特定的形状,尺寸和性质而形成具有独特性质的纳米复合材料。这篇综述概述了在各种聚合物表面装饰的用于催化氧化硫醇,醇,烯烃的钴(Co)配合物/ NPs在制造,表征和应用方面的最新进展。使用各种氧化剂,例如H 2 O 2,O 2,TBHP(氢过氧化丁基)。最终,我们预见了在化学转化领域中这些聚合物负载的钴(纳米)催化剂的当前/未来挑战和机遇。

更新日期:2020-01-31
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