▎ 摘　　要

NOVELTY - The structure has a main body provided with a carbon support. A non-noble metal-based transition metal-macrocycle structure is adsorbed on the carbon support. A macrocycle structure is adsorbed into a dispersed structure at an atomic level through self-alignment bonds. USE - Transition metal nitride-carbon catalyst composite structure for use in electrode catalyst of a fuel cell (all claimed). ADVANTAGE - The structure has excellent oxygen reduction reaction activity and structural stability, and realizes transition metal nitride-carbon catalyst preparing process in a simple manner with high economical benefit. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a device for preparing a transition metal nitride-carbon catalyst. DESCRIPTION OF DRAWING(S) - The drawing shows a photograph of a transmission electron microscope image.