Process and apparatus for producing metal nanoparticles

US20070101823A1Inactive Publication Date: 2007-05-10JAWAHARLAL NEHRU UNIVERSITY
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Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
JAWAHARLAL NEHRU UNIVERSITY
Publication Date
2007-05-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

A novel process and apparatus for producing metal nanoparticles by electro-explosion of wires is disclosed. The invention comprises placing a wire and a plate of the same material as two electrodes in a dense medium, preferably water, in such a manner so as to guide the wire in a straight line and applying a voltage of greater than 12V to said electrodes to cause the wire explode into nanoparticles.
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Description

FIELD OF THE INVENTION

[0001] The present invention relates to a novel process for producing metal nanoparticles by electro-explosion of wires. More particularly, the present invention provides a process for the production of nanoparticles comprising exploding wires into small fragments by application of suitable voltages, at low voltages in order to supply energy to the wires such that the nanoparticle size depends upon various controlling parameters such as applied voltages and current densities. The present invention provides a simple, repeatable process to achieve large production volumes for nanoparticles. BACKGROUND OF THE INVENTION

[0002] Nanoparticles have been a source of great interest due to their novel electrical, optical, physical, chemical, magnetic etc. properties. They have significant potential for a wide range of applications including catalysis, magnetic recording media, optoelectronic materials, magnetic fluids, composite materials, fuel cells, pigments and senso...

Claims

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