Alloy nanoparticles, method for forming the alloy nanoparticles, and alloy nanocatalyst comprising the alloy nanoparticles

A method for forming alloy nanoparticles comprising:

• mixing a first metal complex including a first metal and a second metal complex including a second metal to form a multimetal compound;
• adsorbing the multimetal compound to a support;
• and
• heat-treating the multimetal compound to form an alloy compound,
• wherein the first metal and the second metal comprise transition metal,
• wherein the first metal complex comprises a pyridine-based ligand,
• wherein a carbon shell containing N is formed on the surface of the alloy compound by the heat treatment, and
• wherein a wetting of the multimetal compound occurs on the support by the heat treatment, and the multimetal compound is decomposed into the alloy compound.

A method for forming alloy nanoparticles comprising:

• mixing a first metal complex including a first metal and a second metal complex including a second metal to form a multimetal compound;
• adsorbing the multimetal compound to a support;
• heat-treating the multimetal compound to form an alloy compound;
• and
• freeze-drying the support to which the multimetal compound is adsorbed before the heat treatment,
• wherein the first metal and the second metal comprise transition metal,
• wherein the first metal complex comprises a pyridine-based ligand, and
• wherein a carbon shell containing N is formed on the surface of the alloy compound by the heat treatment.