Premium
Three‐step heterogeneous catalytic reaction mechanism with coverage dependent parameters
Author(s) -
Murzin Dmitry Yu.
Publication year - 1996
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270190204
Subject(s) - adsorption , catalysis , mechanism (biology) , chemistry , reaction mechanism , kinetic energy , thermodynamics , chemical physics , elementary reaction , reaction rate , surface (topology) , kinetics , physics , organic chemistry , classical mechanics , quantum mechanics , geometry , mathematics
A three‐step catalytic reaction (TSCR) mechanism is considered. It involves the steps of adsorption of two different reactants and the bimolecular reaction between adsorbed species. For this mechanism the rates of elementary reactions were assumed to be dependent on the surface coverages of two adspecies due to the repulsive mutual interactions between adsorbed species. The surface electronic gas model was chosen for the description of surface inhomogeneity. It is demonstrated that for such a TSCR mechanism sustained oscillations cannot exit. The application of the model to evaluation of kinetic data is discussed.