Catalytic Systems. The steady state performance of a representative high gamma catalytic system (γ B-A ~ 2.0, δ ~ 1.4 eV) was assessed using a batch reactor model. Sabatier volcano plots for this system (α ~ 0.6, β ~ 102 kJ/mol) are shown in Figure , with reactor temperatures varying between 150-250 o C. Qualitatively, temperature does not change the shape and the rate-limiting kinetic regimes of the volcano plots. Similarly, the associated surface coverages for the considered system was plotted in Figure for both A* and B*. B* dominated the surface at high relative binding energies while A* dominated at weaker binding energies. Each set of curves crossed over at the delta point, which is the equivalence point where A* and B* have the same energy. As temperature increased, the onset of surface vacancy shifted to stronger binding energies, and the remaining coverage of A* decreased faster with higher temperature (not shown, BE < -1.0 eV).