Fig. 3: Variation of CO2 adsorption and CO generation with reaction pressure and temperature of heating tape around the gas circuit.
From: Water coordinated on Cu(I)-based catalysts is the oxygen source in CO2 reduction to CO

Effect of reaction pressure on (a) the adsorption of CO2 onto 63Cu+ and (b) CO generation by CO2 reduction in the presence of either 63Cu+ or [63Cu(H2O)]+ catalysts (gas circuit temperature: 280 oC). Effect of the gas circuit temperature on (c) the adsorption of CO2 onto Cu+ and (d) CO generation by CO2 reduction in the presence of either 63Cu+ or [63Cu(H2O)]+ catalysts (reaction pressure: 1.5 mTorr).