Sonochemistry of molten metals

Vijay Bhooshan Kumar, Aharon Gedanken, Ze'ev Porat

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations

Abstract

Ultrasonic irradiation of molten metals in liquid media causes dispersion of the metals into suspensions of micro- and nanoparticles that can be separated. This is applicable mainly to low-mp elemental metals or alloys, but higher mp elemental metals or alloys were also reported. Among metals, mercury and gallium exhibit especially-low melting points and are thus considered as liquid metals (LMs). Sonication of mercury in aqueous solutions of certain metal ions can cause simultaneous reduction of the ions and reactions between the metals. Gallium can be melted and sonicated in warm water, as well as in aqueous solutions of various solutes such as metal ions and organic compounds, which opened a wide window of interactions between the gallium particles and the solutes. Sonication of molten metals in organic liquids, such as polyethylene glycol (PEG) 400, forms carbon dots (C-dots) doped with nanoparticles of these metals. This review article summarizes the various interactions and reactions that occur upon sonication of metals in liquid media.

Original languageEnglish
Pages (from-to)7625-7639
Number of pages15
JournalNanoscale
Volume15
Issue number17
DOIs
StatePublished - 3 Feb 2023

ASJC Scopus subject areas

  • General Materials Science

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