Patent ID: 7473408
Filing Date: 2009-01-06
Classification: B82Y,C01F,C01P

Abstract:
1. A method for preparing single crystalline cerium oxide (CeO 2 ) nanopowder, comprising: preparing a cerium salt solution by dissolving a cerium salt into a solvent mixture consisting of organic solvent and water in a ratio of about 0.5:1 by weight to about 5:1 by weight; precipitating a cerium hydroxide from the cerium salt solution under alkali condition by addition of a pH adjuster selected from the group consisting of NaOH, and KOH; and hydrothermally reacting said cerium hydroxide; wherein said organic solvent consists of one or more compounds selected from the group consisting of an alcoholic organic solvent, a glycolic organic solvent, acetone, glycerol, formic acid, and ethyl acetate.