Fig. 2: CO₂ adsorption in multi-sized CH pores with different water contents under 10 bars.

a–f Equilibrium CO₂ concentrations in CH mesopores of 2.0, 2.5, 3.0, 3.5, 4.0, and 10 nm as a function of the water coverage density, respectively. The red dashed lines indicate the maximum CO₂ intake in the entire pore. Error bars are from the maximum and minimum CO₂ concentration in the last 1 ns simulation. g The specific values of the dissolved and total adsorbed CO₂ amount in different CH mesopores. h Equilibrium CO₂ density distributions perpendicular to the 10 nm pore under different water contents: CO₂ density distributions in the channel with (I) low water contents and (II) all different water contents. i Schematic diagram showing hysteresis width changes of water adsorption/desorption isotherms in multi-sized mesopores. Source data are provided as a Source Data file.