Fig. 3: The mechanism analysis.
From: Modulating adsorbed hydrogen drives electrochemical CO2-to-C2 products
a The kinetic isotope effect (KIE) of H2O/D2O on P-Cu1/CuNP, M-Cu1/CuNP and R-Cu1/CuNP at −0.6 V in flow cell with 5 M KOH electrolyte. b The electrochemical CO stripping voltammetry tests of P-Cu1/CuNP, M-Cu1/CuNP and R-Cu1/CuNP in 0.1 M Na2SO4 electrolyte. c In situ FT EXAFS spectra at Cu K-edge over M-Cu1/CuNP at various potentials in 5 M KOH electrolyte. In situ surface-enhanced Raman spectra recorded at different applied potentials for (d) P-Cu1/CuNP, (e) M-Cu1/CuNP and (f) R-Cu1/CuNP during CO2RR in 5 M KOH electrolyte.
