Assemblies of covalent organic framework microcrystals:multiple-dimensional manipulation for enhanced applications
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摘要:
Covalent organic frameworks (COFs) are well known as the next generation of shape-persistent zeolite analogues,which have brought new impetus to the development of porous organic materials as well as two-dimensional polymers.Since the advent of COFs in 2005,many striking findings have definitely proven their great potentials expanding applications across energy,environment and healthcare fields.With thorough exploration over a decade,research interest has been drawn on the scientific challenges on chemistry,while making full play of COF values has remained far from satisfactory yet.Thus opening an avenue to modulating COF assemblies on the multi-scale is no longer just an option,but a necessity for matching the application requirements with enhanced performances.In this mini-review,we summarize the recent progress on design of nanoscale COFs with varying forms.Detailed description is concentrated on the synthetic strategies of COF assemblies such as spheres,fibers,tubes,coatings and films,thereby shedding light on the flexible manipulation over dimensions,compositions and morphologies.Meanwhile,the advanced applications of nanoscale COFs have been discussed here with comparison of their bulky counterparts.