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Issue 39, 2014
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Physico-chemical milling for controlled size reduction of metal beads

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Abstract

Here we report a new physico-chemical method based on bipolar electrochemistry for producing spherical metal beads with a well-controlled size. Applying an electric field to a low conductivity electrolyte containing metal beads leads to a polarization potential across the beads, which triggers their electrodissolution. Upon stirring, their size decreases gradually and results in a final population which is spherical and monodisperse. Furthermore, the spherical character of shapeless particles increased to form isotropic objects. The process is versatile, self-limiting and produces beads of different final diameters depending on the applied potential. Finally, the removed material can be recycled at one of the feeder electrodes.

Graphical abstract: Physico-chemical milling for controlled size reduction of metal beads

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Publication details

The article was received on 23 Jul 2014, accepted on 27 Aug 2014 and first published on 28 Aug 2014


Article type: Communication
DOI: 10.1039/C4CP03279A
Phys. Chem. Chem. Phys., 2014,16, 21234-21236

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    Physico-chemical milling for controlled size reduction of metal beads

    J. Roche, E. Gianessi and A. Kuhn, Phys. Chem. Chem. Phys., 2014, 16, 21234
    DOI: 10.1039/C4CP03279A

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