High purity nanomaterials

Abstract

A method of producing high purity nanoscale powders in which the purity of powders produced by the method exceeds 99.99%. Fine powders produced are of size preferably less than 1 micron, and more preferably less than 100 nanometers. Methods for producing such powders in high volume, low-cost, and reproducible quality are also outlined. The fine powders are envisioned to be useful in various applications such as biomedical, sensor, electronic, electrical, photonic, thermal, piezo, magnetic, catalytic and electrochemical products.

1 . A nanoscale oxide powder with purity greater than 99.99% by metal basis, wherein the powder comprises particles with mean size less than 250 nanometers.  
     
     
         2 . The powder of  claim 1 , where the purity is greater than 99.999% by metal basis.  
     
     
         3 . The method of  claim 2 , wherein the particles have a mean size less than 100 nanometers.  
     
     
         4 . A product prepared using the powder of  claim 1 .  
     
     
         5 . A product prepared using the powder of  claim 3 .  
     
     
         6 . The powder of  claim 3 , where the oxide powder comprises cerium.