Figure Abstract (IMAGE)

Dalian Institute of Chemical Physics, Chinese Academy Sciences

Figure Abstract

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This paper presents the synthesis of Co-doped nano-dendritic Cu₂O/Cu heterojunctions via a facile, green chemical replacement method. Atomic Co enhances nitrate adsorption, while metallic Co boosts active hydrogen (*H) generation. By tuning the Co doping concentration and form, *H levels on the catalyst surface are precisely controlled, optimizing ammonia selectivity in nitrate reduction by balancing *H availability and suppressing competing hydrogen evolution. This strategy effectively improves electrocatalytic ammonia synthesis performance.

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Chinese Journal of Catalysis

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