Operando Transmission IR - Method to measure active surface area of a catalyst while it is under Reaction.

Question

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SSITKA: Perhaps The most accurate method to measure the number of sites because the actual number under reaction conditions can be probed.

The method works by switching one of reactants by its isotope (and also switching the inert tracer). The classical reference is S.L. Shannon, J.G. Goodwin Jr., Chem. Rev. 95 (1995) 677.

Describe how the metal surface area of a Pt catalyst could be measured during the water gas shift reaction.

Answer 1

You can use TPD (Temperature-programmed desorption (TPD) to measure the metal surface area of Pt catalyst.