The gas-phase counterpart properties are acquired either from an exact match in the gasphase database or estimated via Benson group additivity by RMG. Figure shows a process flow diagram of the entire process. Adsorption energies for species on different metals are estimated with linear scaling relationships, Equation (6), using the thermodynamic estimates on Pt(111) as the reference point. Extrapolation from the Pt(111) point is based on a species' bond order to the surface, as mentioned in the introduction and as seen in Equation (5). The changes in binding energies are then used to calculate the surface species' thermodynamic properties, seen below in Equations (7, 8, 9).