Resonant Acoustic Mixing (RAM) for Efficient Mechanoredox Catalysis without Grinding or Impact Media

27 October 2022, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Resonant acoustic mixing (RAM) enables mechanoredox catalysis with BaTiO3 as the piezoelectric catalyst on model diazonium coupling reactions. RAM proceeds without formal grinding or impact media, is faster than the analogous ball-milling strategy, and is readily scalable to gram-scale. Combined X-ray diffraction and spectroscopy indicate that reusability of BaTiO3 as a mechanoredox catalyst might be limited by unwanted boration.

Keywords

mechanochemistry
green chemistry
piezoelectric
mechanoredox catalysis
solvent-free chemistry

Supplementary materials

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Supplementary Information
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Selected details of experiments and limited spectroscopic, X-ray diffraction and electron microscopy characterization data.
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