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Title: Direct formation of metal nanoparticles using ultrasound

Abstract

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.

Inventors:
; ; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1600440
Patent Number(s):
10518330
Application Number:
16/219,482
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/13/2018
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 36 MATERIALS SCIENCE

Citation Formats

Huber, Dale L., Watt, John Daniel, Chavez, Jonathan, and Ammerman, Lauren Marie. Direct formation of metal nanoparticles using ultrasound. United States: N. p., 2019. Web.
Huber, Dale L., Watt, John Daniel, Chavez, Jonathan, & Ammerman, Lauren Marie. Direct formation of metal nanoparticles using ultrasound. United States.
Huber, Dale L., Watt, John Daniel, Chavez, Jonathan, and Ammerman, Lauren Marie. Tue . "Direct formation of metal nanoparticles using ultrasound". United States. https://www.osti.gov/servlets/purl/1600440.
@article{osti_1600440,
title = {Direct formation of metal nanoparticles using ultrasound},
author = {Huber, Dale L. and Watt, John Daniel and Chavez, Jonathan and Ammerman, Lauren Marie},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

Patent:

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