▎ 摘　　要

NOVELTY - Synthesis of transition metal electrochemical catalyst by ultra-rapid combustion method involves preparing (i) a mixture by dissociating a nitrogen precursor and a transition metal precursor in a polyol-based solvent to obtain a solution in which transition metal ions and free radical anions are coordinated, and mixing with a support, igniting (ii) the mixture to carbonize the polyol-based solvent to obtain transition metal nanoparticles surrounded by carbon, heat-treating (iii) to carbonize residual organic substance contained in the mixture, and performing (iv) acid treatment to remove transition metal nanoparticles and impurities not surrounded by carbon, and removing residual acid through washing treatment and re-heat treatment to obtain a nanocatalyst comprising a single-atomic transition metal-nitrogen bond structure and a structure in which transition metal nanoparticles surrounded by carbon are present. USE - Synthesis of transition metal electrochemical catalyst (claimed) used for forming electrode for energy storage and conversion device, such as fuel cell, metal-air cell and water decomposition device. ADVANTAGE - The method enables efficient and economical synthesis of transition metal electrochemical catalyst having high catalytic activity.