| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal nanoparticle having an extremely large surface area to its volume, having large action effect as a nanoparticle for purpose of its utilization such as a catalytic action, capable of stably controlling particle size and shape in a colloidal state, and having low manufacturing cost including material costs.SOLUTION: In manufacturing a metal nanoparticle by a wet reduction method, a reduction reaction is conducted by using methoxy poly(oxyethylene/oxypropylene)-2-propylamine of primary amine of a block copolymer CH3O(OCH2CH2)a[OCH2CH(CH3)]bOCH2CH(CH3)NH2, where a=18.6 and b=1.6, as a dispersant and a mixture of ethylene glycol (EG) and polyethylene glycol (PEG) as a solvent and reductant. |
