Fig. 4: Schematic demonstration of pore size-dependent optimal RH for CO2 mineralization.
From: Optimal CO2 intake in metastable water film in mesoporous materials

a CO2 transport in humid mesopores. b The influence of RH on CO2 adsorption in mesopores. c Pore size dependent optimal RH for CO2 mineralization. When the pore size distribution (PSD) increases from 2 nm to 10 nm, the optimal RH for CO2 mineralization (RHopt) shifts from 25% to 90%.