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Topics in Catalysis

, Volume 1, Issue 3–4, pp 353–366 | Cite as

Future Directions and Industrial Perspectives Micro- and macro-kinetics: Their relationship in heterogeneous catalysis

  • Charles T. Campbell
Article

Abstract

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.

Keywords

microkinetic modeling model catalysts ammonia synthesis CO oxidation NO reduction water-gas shift methanol synthesis metal-support interactions 

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Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • Charles T. Campbell
    • 1
  1. 1.Department of ChemistryUniversity of WashingtonSeattleUSA

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