Production method of the copper nano- particle, the copper nano- particle, operating the reducing agent the solution where consists of with

摘要

PROBLEM TO BE SOLVED: To provide a method for producing metallic fine particles with a nanometric size, particularly metallic fine particles which have an average particle size of 10 nm or less and have a sharp particle size distribution, and also to provide the metallic nanoparticles and a dispersion of the metallic nanoparticles.;SOLUTION: When producing the metallic nanoparticles by making a reducing agent react with a solution containing a metal salt of an organic acid and an amine compound, the method for producing the metallic nanoparticles comprises the steps of: adding the reducing agent into the solution so that a ratio (molar ratio) of reducing agent/metal salt of organic acid can be 0.1/1 to 1/1; and reducing the metal salt at a temperature lower than 100°C.;COPYRIGHT: (C)2008,JPO&INPIT