Laterally averaged total potential

The notion of turnover numhera was raised by Boudart, but Carberry has emphasised Chat generally we attempt to measure the number of catalyst sites (by chemisorption or titration) rather than the wore relevant number of sites c f catalysis and these are unlikely to be equal. Possibly the alkene titration using reactant cyclohexene would assess the summation of active sites as the active surface area under reaction conditions. An interesClng alternative approach is to use pulsed isothermal alkane titrations Co deduce the numbers of different surface Ptg sites Involved later In hydrogenation. If such a partial deconvolution of total average turnover numbers is really possible, then potentially it Is excemely useful. 

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