▎ 摘　　要

NOVELTY - Alloy nanoparticles, is claimed. The alloy nanoparticles is prepared by forming multi-metal compound by mixing a first metal complex including a first metal and a second metal complex including a second metal; and heat-treating the multi-metal compound to form an alloy compound, where the first metal and the second metal include a transition metal, and the first metal complex includes a pyridine-based compound, and forming an N-doped carbon shell on the surface of the alloy compound by the heat treatment. USE - The alloy nanoparticles are useful for alloy nanocatalysts (claimed) as a fuel cell electrocatalyst. ADVANTAGE - The alloy nanoparticles have unique electronic and geometric structures, utilized in alloy nanocatalysts excellent oxygen reduction reaction (ORR) activity and stability; exhibits improved activity and stability compared to single metal-based catalysts. The method has easy and simple process, and is economical. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for method of forming alloy nanoparticles comprising forming a multi-metal compound by mixing a first metal complex including a first metal and a second metal complex including a second metal; adsorbing the multimetal compound to a support; and heat-treating the multi-metal compound to form an alloy compound, where the first metal and the second metal include a transition metal, and the first metal complex includes a pyridine-based compound, and obtaining N-doped carbon shell formed on the surface of the alloy compound.