Bronsted-Evans-Polanyi relation of multistep reactions and volcano curve in heterogeneous catalysis

Jun Cheng, P. Hu*, Peter Ellis, Sam French, Gordon Kelly, C. Martin Lok

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

182 Citations (Scopus)


Multistep surface processes involving a number of association reactions and desorption processes may be considered as hypothetical one-step desorption processes. Thus, heterogeneous catalytic reactions can be treated kinetically as consisting of two steps: adsorption and desorption. It is also illustrated that the hypothetical one-step desorption process follows the BEP relation. A volcano curve can be obtained from kinetic analysis by including both adsorption and desorption processes.

Original languageEnglish
Pages (from-to)1308-1311
Number of pages4
JournalThe Journal of Physical Chemistry C
Issue number5
Early online date15 Jan 2008
Publication statusPublished - 7 Feb 2008


  • density-functional theory
  • ammonia-synthesis
  • metal-surfaces
  • CO oxidation
  • dehydrogenation
  • hydrogenation
  • dissociation


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