Method of producing gold nanoparticle

Details Method of producing gold nanoparticle Method of producing gold nanoparticle

2006-06-13

2006-06-13

Wyszomierski, George (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

C075S365000, C075S369000

Reexamination Certificate

active

07060121

ABSTRACT:
A method for producing gold nanoparticles is disclosed. When gold salt solution is mixed with an adsorbent, gold in the form of complexes is adsorbed onto the surface of the adsorbent. The gold-loaded adsorbent, after being separated from the solution by screening, filtration, settling or other methods, is ashed to form ashes. The ashes contain gold nanoparticles and impurities such as oxides of sodium, potassium and calcium. The impurities can be removed by dissolution using dilute acids. The relatively pure gold nanoparticles are obtained after the impurities are removed. Activated carbon or gold-adsorbing resin can be used as the adsorbent. Silver or platinum group metal nanoparticles can also be produced by this method.

REFERENCES:
patent: 6228334 (2001-05-01), Hill et al.
patent: 6686308 (2004-02-01), Mao et al.
patent: 2003/0216256 (2003-11-01), Axtell et al.
H. Cai et al., 1998, Generation of metal nanoparticles by laser ablation of microspheres, Journal of Aerosol Science, vol. 29, No. 5-6, pp. 627-636, (Abstract only).
K. Esumi et al., 2000, Role of polyamodoamine dendrimers for preparing nanoparticles of gold, platinum and silver, Langmuir, vol. 16, No. 6, pp. 2604-2608, (Abstract only).
K. Esumi,et al., 2000, Spontaneous formation of gold nanoparticles in aqueous nanoparticles in aqueous solution of sugar-persubstituted polyamidoamine dendrimers, Langmuir, vol. 16, No. 6, pp. 2978-2980, (Abstract only).
F. Grohn et al., 2001, Nanoparticle formation within dendrimer-containing polymer networks: Route to new organic-inorganic hybrid materials, Macromolecules, vol. 34, No. 7, pp. 2179-2185, (Abstract only).
S. Ravaine et al., 1998, Photochemical generation of gold nanopa nanoparticles in Langmuir-Blodgett films, Langmuir, vol. 14, No. 3 No. 3, pp. 708-713, (Abstract only).

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