fig6

Figure 6. (A) Energy change and structures of intermediates in of a supposed route involves two H from Cu₂₅H₁₀; (B) ²H NMR spectra of Cu₂₅D₁₀ after catalysis with H₂ and fresh Cu₂₅D₁₀. Reproduced from Ref^[62]. Copyright (2019), with permission from American Chemical Society; (C) Conversion for 4-NP reduction over Ag₂₅Cu₄-1 (1 for short), Ag₂₅Cu₄H₈-2_H (2_H for short), and Ag₂₅Cu₄-1 in the presence of H₂O₂; (D) Schematic diagram of the conversion from 1 and 2_H and their performance on the catalytic reduction of 4-NP to 4-AP. With successively addition of H₂O₂ and NaBH₄, 1 can gradually convert to 2_H with better catalytic performance. Reproduced from Ref^[65]. Copyright (2022), with permission from American Chemical Society. NMR: Nuclear magnetic resonance; 4-NP: 4-nitrophenol; 4-AP: 4-aminophenol.