Modeling of Diffusion Process in the Isotopic Oxygen Exchange Experiments of CexZr(1-x)O2 Catalysts

The oxygen mobility processes during the temperature programmed oxygen isotopic exchange is considered by proposed kinetic model. Model includes simple and complex heteroexchange reactions and bulk diffusion processes. The model is applied to fit experimental curves of CexZr(1-x)O2 catalysts with different composition in order to calculate reaction rates and diffusion coefficients, and activation energies of those processes. DOI: http://dx.doi.org/10.5755/j01.ms.19.1.1630