SEARCH Articles Figures Tables ELEMENTARY CURVE ON SURFACE Elementary Processes of Gas-Surface Interaction Elementary Quantum Chemistry of the Surface Chemical Bond Elementary Surface Reactions Elementary Surface Reactions Between Adsorbates 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 Microkinetics of Elementary Surface Processes Models of Elementary Surfaces The Microkinetics of Several Coupled Elementary Surface Processes