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It is crucial to rationally design and synthesize atomic‐scale transition metal‐doped carbon catalysts with high electrocatalytic activity to achieve a high‐efficient oxygen reduction reaction (ORR). Herein, an electrocatalyst comprised of Fe–Fe dual atom pairs and N‐doped concave carbon are reported (N‐CC@Fe DA) that achieves ultrahigh electrocatalytic ORR activity. The catalyst is prepared by a...