Future Directions and Industrial Perspectives Micro- and macro-kinetics: Their relationship in heterogeneous catalysis
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- Campbell, C.T. Top Catal (1994) 1: 353. doi:10.1007/BF01492288
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Attempts to model macroscopic steady-state rates of catalytic reactions on the basis of microscopic kinetic parameters for elementary steps, determined independently from transient kinetic data on model, single-crystal metal catalysts, will be reviewed. The methods used in getting microkinetic parameters will be discussed. Recent studies which determine microkinetics for more complex model catalysts consisting of vapor-deposited metal islands on single-crystal oxides will also be outlined. Finally, thedegree of rate control of a step will also be mathematically defined. This new concept is useful in kinetic modeling, and in putting terms such asrate-controlling step andrate-limiting step into a more rigorous framework.