Beyond confined catalysis in porous materials

• 作者: Pui Ching Lan Sai Wang Shengqian Ma Xiaoliang Wang
• 来源期刊: 国家科学评论（英文版）
• 年，卷（期）: 2020,（6）
• 页码范围: 994-995
• 页数: 2页
• 语种: 英文
• DOI: 10.1093/nsr/nwaa044

摘要

The assembly of active species into porous material has been extensively investigated in the past decades [1].Especially with the utilization of MetalOrganic Frameworks (MOFs),the techniques of encapsulating active species have been widely explored,which is beneficial to the unique aspects of MOFs,like tunable porosity,high capacity,open active sites and crystallinity nature,etc.[2].With the case for trapping soluble active molecules,it is commonly believed that homogeneous catalysts have better catalytic performance than heterogeneous catalysts because of higher dispersion of active sites [3].Given this,the assembly of host porous material and active molecule guest becomes crucial.This integration is supposed to meet several key requirements:(i) the assembled system must contain a large interior cavity for the homogeneous catalyst;(ii)the porous host should have the sizeselectivity to allow substrates/products transport and restrain the active guests from leaching out;(iii) the valuable and practical properties of host material and guest molecules should be highly retained.