Atomically FeN2 moieties dispersed on mesoporous carbon: A new atomic catalyst for efficient oxygen reduction catalysis

A new class of atomically FeN2 moieties dispersed on the surface of N-doped mesoporous carbon were prepared via template casting procedure as highly efficient electrocatalysts for boosting oxygen reduction. The regulation of mononuclear FeN2 moieties (an active site toward four-electron process) can linearly increase the ORR activity.251