In Sec. II F, a correction of the reaction rates necessitates the volume of the cell of a simulation. Therefore, additional MD simulations were run to obtain the volume of a cell in different conditions. These simulations were run for 1.2 ps at the desired temperature and at a pressure of 40.53 GPa. After 0.6 ps, the volume of the cell was equilibrated, so the value of the volume used for the correction was the average of the volume on the last 0.6 ps of the simulation.