Fig. 3: Time-dependent operando Raman spectra of Cu(Tpy)2-KB@GC under electrocatalytic conditions. | Nature Communications

Fig. 3: Time-dependent operando Raman spectra of Cu(Tpy)2-KB@GC under electrocatalytic conditions.

From: Mechanistic insights into CO2 conversion chemistry of copper bis-(terpyridine) molecular electrocatalyst using accessible operando spectrochemistry

Fig. 3

The spectra were measured using (a–d) a CO2-saturated 0.5 M KHCO3 solution and (e–h) an Ar-saturated 0.5 M KHCO3 solution, respectively. The potential was controlled at −0.45 V vs. RHE. The results are displayed in three scanning subsections, namely (a, e) 220-270 cm−1, b, f 280–400 cm−1, c, g 1040–1120 cm−1, and (d, h) 1610–1640 cm−1. i Comparisons among the DFT-calculated and operando Raman spectra of Cu(Tpy)2. The experimental line was extracted from the top spectra in (a–d) at the end of 2.5 s.

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