Fig. 2
From: Scalable carbon dioxide electroreduction coupled to carbonylation chemistry
Electrochemical reduction of CO2. a Rate of CO (orange) and H2 (blue) produced as a function of FeTPP concentration by applying a constant voltage of 3.8 V at stainless-steel electrodes (Fig. 3a) in 0.1 M TBABF4/DMF containing 0.8 M TFE. b Rate of CO (orange) and H2 (blue) produced as a function of TFE concentration, conditions similar to Fig. 1a but with a fixed FeTPP concentration of 0.2 mM. c Rate of CO (orange) and H2 (blue) produced at various applied currents using 0.8 M TFE and 0.2 mM FeTPP. d Faradaic efficiency of the reaction for CO (orange) and H2 (blue) production, same conditions as in c. e Cell voltage vs. time for electrolysis using applied currents of 12 (blue), 17 (red), 23 (yellow), 28 (purple), and 33 (green) mA, same conditions as in c. All error bars represent the s.d. for two independent measurements. Gas production was determined by gas chromatography
