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Some novel porous materials for selective catalytic oxidations
Materials Today ( IF 24.2 ) Pub Date : 2020-01-01 , DOI: 10.1016/j.mattod.2019.06.008
Steven L. Suib , Jan Přech , Jiří Čejka , Yasutaka Kuwahara , Kohsuke Mori , Hiromi Yamashita

Abstract Porous materials are outstanding catalysts in various reactions using confinement and shape selectivity effects. Unsurprisingly, extensive research has been conducted on zeolites, pillared clays, metal oxides, metal organic frameworks, and mesoporous materials. In particular, selective oxidation of hydrocarbons stands out an important class of reactions, but the ability to avoid over-oxidation remains a challenge. Thus, the present review highlights the latest findings on octahedral and tetrahedral catalytic materials in oxidation reactions, primarily focusing on types of reactive oxygen species and approaches to their investigation, on the incorporation of different heteroatoms (Ti, Sn) into silica matrices for catalytic purposes and corresponding types of reactions and on surface engineering and design of “single-site catalysts”. In addition, composite catalysts for one-pot selective oxidation reactions are reviewed, providing examples from photochemistry including “single-site photocatalysis”, electrocatalysis, and integration of metal complexes with functional solid materials. Ultimately, the end goal of this review is to discuss current state-of-the-art approaches that are being used in the area of selective catalytic oxidations with some novel porous materials. This includes methods that are being used to study mechanistic details as well as new catalysts and new substrates for such oxidations.

中文翻译:

一些用于选择性催化氧化的新型多孔材料

摘要 多孔材料是利用限制效应和形状选择性效应在各种反应中表现出色的催化剂。不出所料,人们对沸石、柱撑粘土、金属氧化物、金属有机骨架和介孔材料进行了广泛的研究。特别是,烃类的选择性氧化是一类重要的反应,但避免过度氧化的能力仍然是一个挑战。因此,本综述重点介绍了氧化反应中八面体和四面体催化材料的最新发现,主要关注活性氧的类型及其研究方法,以及将不同的杂原子(Ti、Sn)掺入二氧化硅基质中以达到催化目的和相应类型的反应以及“单点催化剂”的表面工程和设计。此外,综述了用于一锅选择性氧化反应的复合催化剂,提供了光化学的例子,包括“单点光催化”、电催化以及金属配合物与功能性固体材料的整合。最终,这篇综述的最终目标是讨论当前在选择性催化氧化领域中使用的最先进的方法,这些方法使用一些新型多孔材料。这包括用于研究机械细节的方法以及用于此类氧化的新催化剂和新底物。本综述的最终目标是讨论当前在选择性催化氧化领域中使用的最先进的方法,这些方法使用一些新型多孔材料。这包括用于研究机械细节的方法以及用于此类氧化的新催化剂和新底物。本综述的最终目标是讨论当前在选择性催化氧化领域中使用的最先进的方法,这些方法使用一些新型多孔材料。这包括用于研究机械细节的方法以及用于此类氧化的新催化剂和新底物。
更新日期:2020-01-01
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