Deposition of dispersed metal particles onto substrates using supercritical fluids
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United States of America Patent
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Oct 25, 2005
Grant Date -
Sep 22, 2005
app pub date -
Mar 16, 2004
filing date -
Mar 16, 2004
priority date (Note) -
Expired
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Abstract
A method for producing dispersed metal particles on a substrate and the compositions produced is disclosed. A method for producing the particles comprises exposing an organometallic and a particulate substrate to supercritical or near supercritical fluid under conditions to form a mixture of the fluid and the organometallic, allowing the mixture to remain in contact with the substrate for a time sufficient to deposit dispersed organometallic onto the substrate, venting the mixture, thereby adsorbing the organometallic onto the substrate, and reducing the dispersed organometallic to dispersed metal particles with a reducing agent.
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