“…Mechanochemical synthesis was first mentioned in 1820 by Faraday who reduced AgCl to Ag using Zn, Cu, Sn, or Fe, by grinding with a pestle in a mortar without solvent. 27 Afterwards, this method was employed for large-scale preparation of pure metal clusters, supported nanoparticles, metal–organic frameworks (MOFs), and covalent organic frameworks (COFs). 1 Recently, several examples of perovskite synthesis through the mechanochemical method have proposed a new solvent-free route for obtaining high-quality perovskites.…”