Structure Influence on Adsorptivity

From this expression, the relative adsorption coefficients of the starting compounds 1 and = KJK2 can be calculated when the values of the rate constants k and 2 are known from individual kinetic measurements. However, the success of this procedure depends very much on the reliability of the estimation of the rate constants. Sometimes simple measurements are conducted under the assiunption that the reaction is zero order with respect to the concentration of the organic compound. When this assumption has not been adequately tested, this third source of data must be judged with care. 

Series Source of data Adsorbate Sorbent (catalyst) Correlation of log Xj with Number of points Slope Reference 

A physical organic approach to the problems of heterogeneous catalysis, which is the basis of the methods and results reviewed, has brought attention to some new or neglected aspects and hitherto dormant ideas. 

The study of heterogeneous catalysis with the emphasis on the effects of reactant structure stimulates consideration of the reacting system in terms of mutual interactions. Modification of the catalyst surface by the action of reactants is a part of these interactions. This idea is not new, but hitherto little evidence supported it now it is an inherent component of the accepted mechanism of elimination reactions. In general, the working surface may be quite different from the initial surface. Even the solvent may participate in the mechanism, as the results of the Delft school (125, 161, 162) indicate, by temporally accommodating hydrogen species formed in a reaction step from the reactants or hydrogen molecules on the surface. 

The study of structure influence on rate, which is the specific topic of this review, has contributed to the understanding of the different types of catalytic 

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