Here, we reported a highly efficient nitrate electroreduction (NORR) electrocatalyst that integrated alloying and heterostructuring strategies comprising FeCo alloy and MoN (FeCo-MoN/NC). Notably, the maximum NH Faraday efficiency (FE) of 83.24%, NH yield of 12.28 mg h mg, and good stability were achieved over FeCo-MoN/NC. Moreover, a Zn-NO battery assembled with FeCo-MoN/NC exhibited a power density of 0.87 mW cm, an NH yield of 14.09 mg h mg, and a FE as high as 76.31%.
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