Simulations were repeated for the CMPO and CMPO-BMA models over all the 81 hypothetical metals, and the values of CH 4 conversion, synthesis gas yield, and full oxidation yield at 1.045 cm in the PFR, at C/O= 0.6, C/O= 1.0, and C/O=2.6 are demonstrated in heat maps in Figures and S5. The main point here is that when using the Blowers-Masel For the CMPO-BMA model on the metal with ( E C = 6.0 eV, E O = 3.25 eV) at C/O=0.6 (the hot spot in Figure ), the CH 4 conversion is higher because some is converted to C 2 H 6 and C 2 H 4 through gas phase reactions, pathways that are not active at that point in the CMPO model on the same metal (Figure ). The gas phase rate constants were not changed, so this is likely because the temperature is higher in the BMA model due to faster exothermic reactions upstream in the adiabatic reactor simulation. This made the CMPO-BMA model consume 30% more CH 4 than the CMPO model on the same metal.