The presence of adsorbed CO still will depend on the working conditions of temperature, T, and pCO. Such are accounted in the thermodynamic phase diagrams, exemplified as well in Fig. for an early (Sc), middle (Fe), and late (Cu) TM, while similar behaviours can be found on the rest of simulated thermodynamic surface phase diagrams found in Fig. of Section S6 of the SM. In Fig. one observes that, in general terms, for a given TM, there is a difference of CO affinity for the different explored surfaces, but that the largest effect is found when going along the d series, revealing how thermodynamic phase diagrams reduce the adsorbing regions when going for TMs with more d electrons, up to cases, like in Cu, where surfaces can reach a CO-free at high temperatures even when having a standard pCO of 1 bar.