Optimizing Nitrate Electroreduction toward Nearly 100% Ammonia Selectivity through Synergistic RuCu Catalysts and Integrated Coupled Anodic Reaction for High-Value Products.

ABSTRACT: Copper-based catalysts have been widely used in the field of the nitrate reduction reaction (NO₃RR) to ammonia, demonstrating high nitrate reduction rates. However, their low selectivity for ammonia production poses significant limitations in practical applications. In this study, we present that the incorporation of Ru into the Cu@Ni foam can achieve nearly 100% selectivity for NH₃ and a high faradaic efficiency of 96.8% in the NO₃RR. Ru not only facilitates the generation of adsorbed hydrogen but also suppresses the HER reaction. This can be attributed to the unique electron distribution exhibited by Ru atoms when surrounded by Cu, leading to a decreased electron-accepting capability. Consequently, this reduction results in a diminished Lewis acidity and

SUBMITTER: Shen S 

PROVIDER: S-EPMC11835265 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature