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Supported metal and metal oxide particles with proximity effect for catalysis
RSC Advances ( IF 3.9 ) Pub Date : 2020-9-25 , DOI: 10.1039/d0ra06168a
Subhadeep Biswas 1 , Anjali Pal 1 , Tarasankar Pal 2
Affiliation  

External influence is essential for any change to occur in this world. Similarly, the reaction path of a chemical reaction can be changed with the addition of a catalyst from outside. Sometimes a catalyst performs better when it remains associated with an inert substance, which is called a support material (SM). Improved catalyst accomplishment arises from the ‘proximity effect’. Even inert supports play a role in better product formulation or environmental remediation. In this review, it has been shown how the SM, as a nest, aids the catalyst particle synergistically to perform a good job in a chemical reaction. The structure–function relationship of SM helps in catalyst activation to some extent, and produces active centres that are difficult to fully ascertain. In the text, Langmuir–Hinshelwood (L–H), Mars-van Krevelen (MVK), and Eley–Rideal (E–R) mechanisms are highlighted for the adsorption processes as the case may be. Again, the importance of SM for both catalyst and substrates has been consolidated here in the text. Finally, the role of the initiator and the promoter is also discussed in this review.

中文翻译:


具有邻近效应的负载金属和金属氧化物颗粒用于催化



外部影响对于这个世界发生的任何变化都是至关重要的。类似地,化学反应的反应路径可以通过从外部添加催化剂来改变。有时,当催化剂与惰性物质(称为载体材料(SM))结合时,其性能会更好。催化剂效果的提高源于“邻近效应”。即使是惰性载体也能在更好的产品配方或环境修复中发挥作用。在这篇综述中,我们展示了 SM 作为巢穴如何协同帮助催化剂颗粒在化学反应中发挥良好作用。 SM的构效关系在一定程度上有助于催化剂的活化,并产生难以完全确定的活性中心。在文中,根据具体情况,重点介绍了吸附过程的 Langmuir-Hinshelwood (L-H)、Mars-van Krevelen (MVK) 和 Eley-Rideal (E-R) 机制。再次强调了 SM 对于催化剂和底物的重要性。最后,本次综述还讨论了发起者和推动者的角色。
更新日期:2020-09-25
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