Method for preparing superfine iridium nanoparticles without surfactant

The invention discloses superfine iridium nanoparticles and a preparation method thereof, and belongs to the technical field of nano material preparation. The superfine iridium nanoparticles are prepared by the following steps: adding iridium acetate serving as a metal source into an aqueous solution containing furandicarboxylic acid, and fully stirring; and heating to synthesize the ultrafine iridium nanoparticles by a hydrothermal method. According to the method, iridium acetate is used as a metal source, deionized water is used as a solvent, and the ultrafine iridium nano-alloy with the size of 1-2 nanometers is synthesized through a hydrothermal reaction under the reduction action of furandicarboxylic acid. The iridium nanoparticles synthesized by the method have relatively high electrocatalytic activity and excellent stability. The invention provides a new way for preparing the iridium nanoparticles without a surfactant. 本发明公开了一种超细铱纳米颗粒及其制备方法，属于纳米材料制备技术领域。超细铱纳米颗粒由以下方法制得：将醋酸铱作为金属源加入到含有呋喃二甲酸的水溶液中，对其进行充分搅拌；