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Soft Spray: An Emerging Technique for Metal-Organic Framework-Based Materials.

As an emerging type of microporous inorganic-organic hybrid material, metal-organic frameworks (MOFs) have become more and more universal in various application fields. Preparing high-performance MOF materials by a simple method has always been the pursuit of synthetic chemists and materials scientists. Recently, a new technique of so-called "soft spray", where the atomized droplets of one reactant solution are sprayed onto the surface of the other reactant solution at a slow speed, has been developed to fabricate MOF-based materials, such as nanoparticles, thin films, and hybrids. This Perspective aims at summarizing the latest research progress of the preparation of MOF-based materials by the soft spray technique, discussing the possible mechanism, highlighting its powerful controllability in the morphological structure, and exhibiting great promise as a simple, efficient, and scalable technique.