SEARCH Articles Figures Tables Elementary reaction steps on surfaces Elementary surface reaction steps Elementary surface reaction steps adsorption energies Elementary surface reaction steps calculated activation energies Elementary surface reaction steps comparison Elementary surface reaction steps methanation Elementary surface reaction steps methane activation Elementary surface reaction steps structure sensitivity Elementary surface reaction steps transition state Rate-controlling steps surface reaction Rate-determining steps surface reactions Step reactions Stepped surfaces Steps in the mechanism of surface reactions Surface Reactions with Rate-Controlling Steps Surface reaction as the rate determining step Surface reactions Rideal-Eley steps Surface reactions buffer-step models Surface step phase reaction Surface steps