Abstract
Direct mechanocatalysis describes catalytic reactions under the involvement of mechanical energy with the distinct feature of milling equipment itself being the catalyst. This novel type of catalysis features no solubility challenges of the catalysts nor the substrate and on top offering most facile way of separation.
Highlights
Catalysis is indispensable in chemistry and society
For direct mechanocatalysis there is limited data on the impact of temperature and milling speed since most of the reaction have only been studied at one frequency in vibratory ball mills
We propose to use the term “direct mechanocatalysis” for catalytic reactions where the reactants are exposed to mechanical forces and the source of force is catalytically active itself
Summary
Catalysis is indispensable in chemistry and society. Most chemicals used in academia and industry have seen a catalyst at least once during their production. Mack and co-workers developed a cooled mixer mill setup with which they could demonstrate that the milling frequency alone can have an impact on the reaction.[24] On the different end of the temperature spectrum the Group of Uzarevic has lately established a heatable milling setup They observed drastic influences of moderate increases in temperature on the selectivity and reaction rate of mechanochemical reactions.[25] For direct mechanocatalysis there is limited data on the impact of temperature and milling speed since most of the reaction have only been studied at one frequency in vibratory ball mills. It is the job of the mechanochemical community to dig deeper into this subject to uncover its full potential
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