Fig. 5: Potential-dependent SEIRA spectra on the surfaces of different substrates supported Cu2O in 0.1 M KOH.
From: Mechanistic insights into C-C coupling in electrochemical CO reduction using gold superlattices

The C-H stretching and CH2 twisting modes from CH3I adsorbed on Cu2O surfaces in the presence of Ar (a) and 12CO (b). c The adsorbed CO, O-H bending, and *OCCOH vibrations in the presence of 12CO. The color schemes in a and b apply to c. SEIRA spectra of O-H bending and *OCCOH vibrations on the surfaces of GNSs supported Cu2O catalysts in d 12CO- and e 13CO-saturated 0.1 M KOH with CH3I. f 1H NMR and 13C NMR peaks corresponding to ethanol produced from the 13CORR.