Hy-power Coatings Limited

Nathan Gerein

Hadi K Mahabadi

Sinoj Abraham

Juan-Pablo Bravo-Vasquez

Guibun Ma

Disclosed herein are indium-tin-oxide nanoparticles and a method for continuously producing precipitated indium-tin nanoparticles having a particle size range of substantially from about 10 nm to about 200 nm and a substantially consistent ratio of indium to tin in the resultant nanoparticles across the duration of the continuous process, based on the ratio of indium to tin in a seeding solution. The method comprises preparing intermediate indium and tin compounds of the general formula [M(OH)C], where M represents the indium or tin ionic component of indium or tin salts, C represents the cationic component of indium or tin salt(s), x is a number greater than 0 and y=[M*valance&#x2212;x]/C* valance in the seeding solution. The intermediate compounds are continuously precipitated with a base solution in a reaction vessel initially having a solvent contained therein. The method also provides a means for controlling the shape of the resultant nanoparticles. The resultant indium-tin nanoparticles may be further processed into dispersions.

Method for continuous preparation of indium-tin coprecipitates and indium-tin-oxide nanopowders with substantially homogeneous indium/tin composition, controllable shape and particle size

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Saint Albert, Canada

Nathan Gerein