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Equilibrium Kinetics of Chemisorption Processes
Author(s) -
Ledovskikh Alexander,
Danilov Dimitry,
Notten Peter H. L.
Publication year - 2008
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200700777
Subject(s) - chemisorption , kinetics , thermodynamics , chemistry , chemical kinetics , equilibrium constant , reaction rate constant , equilibrium thermodynamics , adsorption , activation energy , thermodynamic equilibrium , physics , classical mechanics
A new approach to describe the equilibrium kinetics of chemisorption is proposed. The description of the system is based on first‐principles chemical reaction kinetics and statistical thermodynamics. The rate constants are described by using a novel way of activation energy characterization. General expressions for equilibrium gas pressure isotherms and forward/backward reaction rates are obtained as a function of surface coverage. A strong influence of attraction and repulsion interaction energies between the adsorbed species on the equilibrium kinetics is found.