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Issue 26, 2020
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Kinetics of mechanochemical transformations

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The use of mechanical forces to activate and drive chemical transformations in solid particulate is attracting remarkable interest in the light of its promising application in a wide spectrum of strategic areas ranging from materials science to fine chemical synthesis and pharmaceutical ingredient production. The capability of enabling solventless processes and fabricating unique materials inaccessible otherwise has made mechanochemistry one of the ten chemical innovations with the highest potential of changing the world. As in the past, so again now, the development of reliable technologies based on mechanochemical transformations cannot be separated from the understanding of the underlying mechanisms, their description and their control. To this aim, in this work we propose a kinetic model that relates macroscopic and microscopic scales while accounting for the statistical nature of the mechanical processing of powder. We discuss several specific case studies and develop the pertinent kinetic equations, showing how they can be used to best fit the experimental data and obtain insight into the microscopic features of mechanical activation.

Graphical abstract: Kinetics of mechanochemical transformations

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Article information

27 Mar 2020
17 Jun 2020
First published
17 Jun 2020

Phys. Chem. Chem. Phys., 2020,22, 14489-14502
Article type

Kinetics of mechanochemical transformations

M. Carta, E. Colacino, F. Delogu and A. Porcheddu, Phys. Chem. Chem. Phys., 2020, 22, 14489
DOI: 10.1039/D0CP01658F

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