Direct formation of metal nanoparticles using ultrasound

Huber, Dale L.; Watt, John Daniel; Chavez, Jonathan; Ammerman, Lauren Marie

Direct formation of metal nanoparticles using ultrasound

Patent · Mon Dec 30 23:00:00 EST 2019

OSTI ID:1600440

Huber, Dale L.; Watt, John Daniel; Chavez, Jonathan; Ammerman, Lauren Marie

A method for creating nanoparticles directly from bulk metal by applying ultrasound to the surface in the presence of a two-part surfactant system. Implosive collapse of cavitation bubbles near the bulk metal surface generates powerful microjets, leading to material ejection. This liberated material is captured and stabilized by a surfactant bilayer in the form of nanoparticles. Nanoparticles can be produced regardless of the bulk metal form factor. The method is generally applicable of metals and alloys. The method can be applied to an environmentally important problem, the reclamation of gold from an electronic waste stream.

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Research Organization:: National Technology & Engineering Solutions of Sandia, LLC, Albuquerque, NM (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

DOE Contract Number:: NA0003525

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Number(s):: 10,518,330

Application Number:: 16/219,482

OSTI ID:: 1600440

Country of Publication:: United States

Language:: English

References (22)

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