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Title: Alloy nanoparticle synthesis using ionizing radiation

Abstract

A method of forming stable nanoparticles comprising substantially uniform alloys of metals. A high dose of ionizing radiation is used to generate high concentrations of solvated electrons and optionally radical reducing species that rapidly reduce a mixture of metal ion source species to form alloy nanoparticles. The method can make uniform alloy nanoparticles from normally immiscible metals by overcoming the thermodynamic limitations that would preferentially produce core-shell nanoparticles.

Inventors:
 [1];  [2];  [3]
  1. Sandia Park, NM
  2. Albuquerque, NM
  3. Durham, NC
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1025576
Patent Number(s):
7998239
Application Number:
12/620,633
Assignee:
Sandia Corporation (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:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Nenoff, Tina M, Powers, Dana A, and Zhang, Zhenyuan. Alloy nanoparticle synthesis using ionizing radiation. United States: N. p., 2011. Web.
Nenoff, Tina M, Powers, Dana A, & Zhang, Zhenyuan. Alloy nanoparticle synthesis using ionizing radiation. United States.
Nenoff, Tina M, Powers, Dana A, and Zhang, Zhenyuan. Tue . "Alloy nanoparticle synthesis using ionizing radiation". United States. https://www.osti.gov/servlets/purl/1025576.
@article{osti_1025576,
title = {Alloy nanoparticle synthesis using ionizing radiation},
author = {Nenoff, Tina M and Powers, Dana A and Zhang, Zhenyuan},
abstractNote = {A method of forming stable nanoparticles comprising substantially uniform alloys of metals. A high dose of ionizing radiation is used to generate high concentrations of solvated electrons and optionally radical reducing species that rapidly reduce a mixture of metal ion source species to form alloy nanoparticles. The method can make uniform alloy nanoparticles from normally immiscible metals by overcoming the thermodynamic limitations that would preferentially produce core-shell nanoparticles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {8}
}

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Works referenced in this record:

Microaggregates of non-noble metals and bimetallic alloys prepared by radiation-induced reduction
journal, September 1985


Radiolytic Control of the Size of Colloidal Gold Nanoparticles
journal, December 1998


In situ coating of microreactor inner wall with nickel nano-particles prepared by γ-irradiation in magnetic field
journal, April 2004


Formation and Absorption Spectrum of Copper Nanoparticles from the Radiolytic Reduction of Cu(CN) 2 -
journal, February 2000


Dose Rate Effects on Radiolytic Synthesis of Gold−Silver Bimetallic Clusters in Solution
journal, May 1998


Using γ-irradiation to synthesize Ag nanoparticles
journal, May 2007


Electron spin echo studies of solvation structure
journal, June 1981