Noble-metal nanomaterial

特許 権利維持 PROBLEM TO BE SOLVED: To provide a method for manufacturing a noble-metal nanomaterial by which the noble-metal nanomaterial can be efficiently manufactured by a simple method. SOLUTION: The manufacturing method comprises the following steps: a step of dispersing one or more noble-metal oxides in an aqueous solvent by ultrasonic irradiation to prepare a noble-metal oxide disperse liquid;