fig3
Figure 3. (A) Linear sweep voltammetry (LSV) image of catalysts in Ar-saturated or CO2-saturated 0.5 M KHCO3 electrolytes; (B) FECO image of catalysts at -0.56 to -0.86 V vs. RHE potentials; (C) CO Faradaic efficiency error bars and current density image of MF-Ni-900; (D-G) ECSA linear image (D), Tafel image (E), EIS image (F), TOF image (G) of MF-900, MF-Ni-800, MF-Ni-900, and MF-Ni-1000; (H) 35 h long-term stability of MF-Ni-900. FECO: Faradaic efficiency of CO; RHE: reversible hydrogen electrode; MF: melamine foam; ECSA: electrochemically active surface area; EIS: electrochemical impedance spectroscopy; TOF: transition frequency.
