fig9

Figure 9. (A) Schematic illustration for the preparation of the Bi₂O₃/MXene. (B) XRD pattern of Bi₂O₃/MXene. (C) EIS spectra and (D) CV curves at different scan rates of Bi₂O₃/MXene with different proportions. (E) Gibbs free energy barrier diagram of NO₃^-RR for Bi₂O₃/MXene. (F) NH₃ yield rate and FE of Bi₂O₃/MXene under different potentials. Reproduced with permission from Ref.^[71]. Copyright 2023 Wiley-VCH. (G) Schematic diagram of Mo₂CT_x:Fe for NO₃^- RR. (H) XANES spectra of Mo₂CT_x:Fe in the presence or absence of NO₃^- under acidic conditions. (I) CN_C/O was determined by FT-EXAFS data fitting for Mo₂CT_x:Fe. (J) FE of Mo₂CT_x:Fe at different potentials in neutral electrolyte. (K) Local current density and NH₃ yield rates of Mo₂CT_x:Fe at each potential in neutral electrolyte. (L) FE of Mo₂CT_x:Fe at different potentials in acid electrolyte. (M) Local current density and NH₃ yield rates of Mo₂CT_x:Fe at each potential in acid electrolyte. Reproduced with permission from Ref.^[74]. Copyright 2023 Wiley-VCH.