In Situ Construction of Cu¹⁺/Cu⁰ and Cu²⁺/Cu⁰ Pairs of Cu-Based Catalysts for Electrocatalytic Nitrate Reduction.

ABSTRACT: Electrocatalytic nitrate reduction reaction (NO₃RR) as a sustainable nitrogen cycle regulation strategy provides a new pathway to achieve carbon neutrality goals. In this study, CuO, Cu₂P₂O₇ and Cu₃(PO₄)₂ (CuPO) are synthesized as pre-catalysts via a sol-gel process for NO₃RR, in which CuO exhibits excellent NH₃ yields of 8.16 mg h^-1 mg_cat ^-1 (FE = 95.72%, -0.95 V vs. RHE) compared to Cu₂P₂O₇ (7.33 mg h^-1mg_cat ^-1, 94.88%) and Cu₃(PO₄)₂ (6.53 mg h^-1mg_cat ^-1, 92.04%). The combination of in situ Raman and XPS spectra reveal that the

SUBMITTER: An S 

PROVIDER: S-EPMC12904027 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature