Fig. 2: Cyclic voltammetry and spectroelectrochemical studies.
From: Energy-efficient CO2/CO interconversion by homogeneous copper-based molecular catalysts
The comparative cyclic voltammograms of 1 mM C1 (red dotted trace) and C2 (green dotted trace) along with the blank (dotted grey trace) under Ar atmosphere recorded in DMF media in the presence of nBu4N+BF4- electrolyte recorded at A 0.1 V/s and B 1.0 V/s scan rate, respectively. The changes in the electrochemical behavior under CO2 are also included for C1 (solid blue trace) and C2 (solid purple trace). Scan rate for each experiment was 1.0 V/s. The horizontal arrows in (A) and (B) signify the initial scan direction. C The optical spectral change of C1 during spectroelectrochemical experiment when −0.20 V (violet trace) and +0.06 V (brown trace) potential was applied compared to the initial sample (black trace). D The serial changes in azo group (-N = N-) stretching band for C1 during a spectroelectrochemistry-IR experiment with initial sample (black trace) and with the application of −1.15 V (red trace), −1.45 V (blue trace), and −2.05 V (violet trace) under Ar atmosphere.
