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Brønsted−Evans−Polanyi Relation of Multistep Reactions and Volcano Curve in Heterogeneous Catalysis

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journal contribution
posted on 07.02.2008, 00:00 by Jun Cheng, P. Hu, Peter Ellis, Sam French, Gordon Kelly, C. Martin Lok
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.