METHOD FOR PRODUCING NANO-PARTICLE OF GOLD

摘要

PROBLEM TO BE SOLVED: To provide a method for producing nano-particles of gold by which the nano-particles of the gold-only or the nano-particles of the single-crystal gold can be produced and this production is easily performed because no impurities such as a surface active agent exist in the gold. SOLUTION: To a liquid phase for dispersion, a mixture of a precursor of the gold as a hydrate and a dispersion assistant, is added and thereafter, the precursor of the gold is finely dispersed into the above liquid-phase by irradiating the whole body with ultrasonic wave. and thereafter, the precursor of the gold is reduced by further irradiating the resultant body with the ultrasonic wave to produce the nano-particles of the gold. COPYRIGHT: (C)2006,JPO&NCIPI