fig4
Figure 4. Potential-dependent ATR-SEIRAS spectra for (A) Cu and (B) CuCo0.4% at 0.1 to -1.4 V vs. RHE in CO2-saturated 0.1 M KHCO3. The spectrum taken at 0.2 V vs. RHE was used as the reference. ATR-SEIRAS: Attenuated total reflectance-surface-enhanced infrared absorption spectroscopy; RHE: reversible hydrogen electrode.
