Method for producing alloy nanoparticles, alloy nanoparticles produced using the same, and catalyst comprising the same

摘要

The present invention provides a method for efficiently producing composite noble metal nanoparticles by simple processing with low energy and low environmental load. The present invention adds a metal ion reducing bacterium and an electron donor to a raw material solution containing a plurality of types of noble metal ions, and reduces the noble metal ions by the metal ion reducing bacterium, so that a plurality of ions are contained in one particle. A method for producing composite noble metal nanoparticles, comprising a bioreduction step of depositing composite noble metal nanoparticles containing seed noble metals.