In-Situ Research Instruments
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Step Switches of an Isoptope

18O2 Exchange with Lattice Oxygen

A step increase in the concentration of a labeled reactant can be used to exchange with the same reactant adsorbed on the surface or being part of the catalyst lattice as in the case of oxygen. The amount of oxygen exchanged can be used to determine oxygen diffusion coefficient and the nature of the interaction between surface and gas phase species. Catal. Letter 9,441 (1991)

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