Fig. 3: Mechanistic investigation. | Nature Communications

Fig. 3: Mechanistic investigation.

From: Unlocking full and fast conversion in photocatalytic carbon dioxide reduction for applications in radio-carbonylation

Fig. 3: Mechanistic investigation.The alternative text for this image may have been generated using AI.

a Experimental pressure reading (circles) during the photocatalytic reduction of CO2 to CO from Ch.1 containing 0.57 mM Ru PS, 0.57 mM Re cat, 279 mM BIH, 12.7 mM sodium phosphinidynetris(benzene sulfonate) and 712 mM phenol (or H2O) in dimethylformamide, irradiated using a Blue LED lamp (irradiance of 117 W m−2). Fitted simulated pressure data (solid line) is shown based on a reaction-model-based kinetic simulation. Concentration profiles of CO, CO2, and HCO3‒ are shown based on the results of the kinetics simulation (see Supplementary pages 28–38) distinguishing the effect of adding b phenol or c water to the photocatalytic solution. d Proposed photocatalytic cycle for the Ru-Re bimolecular system on which the kinetic simulation is based upon. Effect of water as proton source is indicated in thick black arrows accumulating bicarbonate while the changes when phenol is used is indicated in green arrows.

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