Fig. 1: Snapshots of ab initio molecular dynamics simulations under confinement.
From: Nanoconfinement facilitates reactions of carbon dioxide in supercritical water

a CO2(aq) confined by graphene sheets. b CO2 confined by cleaved stishovite (SiO2) (100) slabs. Red balls represent oxygen atoms in solutions, and pink balls are oxygen atoms in SiO2. Gray, white, and yellow balls are carbon, hydrogen, and silicon atoms, respectively.