ArticleNature communications2026
Spin state and orbital engineering of cuprous oxide for efficient nitrate reduction.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
Electrocatalytic nitrate reduction provides a sustainable pathway for wastewater treatment and ammonia production, yet the complex multi‑electron transfer demands efficient catalysts to achieve both high selectivity and fast kinetics. Here we show that atomic substitution of magnetic transition metals (Cr, Mn, Fe, Co, Ni) into cuprous oxide enables systematic tuning of catalytic performance. Density functional theory calculations combined with experiments identify that catalytic activity is governed by nitrate adsorption strength, ammonia desorption energy, and d-p orbital hybridization. Cobalt‑substituted cuprous oxide delivers a near‑unity Faradaic efficiency of 96.5% and an ammonia yield rate of 2.8 mM h
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