Basic Mechanisms of Catalytic Reactions

1 Basic Mechanisms of Catalytic Reactions Langmuir Hinshelwood Reaction Mechanism 

According to the lUPAC, the Langmuir-Hinshelwood mechanism is defined as a mechanism for surface catalysis in which the reaction occurs between species that are adsorbed on the surface. This mechanism is expected to exhibit a second order kinetics with respect to the surface coverage of the two reactants. 

As an example, we briefly discuss the oxidation of carbon monoxide by molecular oxygen, which is considered a model surface reaction in heterogeneous catalysis [240,344]. The CO combustion reaction. 

According to lUPAC, a mechanism for surface catalysis in which the reaction occurs between a reactant molecule in the gas phase and one that 

For the case of supported model catalyst under surface science conditions an Eley-Rideal mechanism has so far not been unambiguously identified. However, for gas-phase clusters, an Eley-Rideal type mechanism, in which the reactant has to collide at the right position with the cluster-complex to initiate the reaction, is more likely to proceed due to the reduced size of the catalytically active unsupported cluster. 

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