Abstract
Basic knowledge of the mechanism of red–ox reactions catalyzed by oxide and nanocomposite catalysts is required to develop scientific bases of design of catalysts with high activity, selectivity and stability. Reliable elucidation of mechanistic features including detailed kinetic schemes is possible by application of unsteady-kinetic methods (including temporal analysis of products (TAP), isotope transition experiments Steady-State Isotope Transient Kinetics Analysis (SSITKA), etc.), in situ spectroscopic methods (Fourier-transform infrared spectroscopy (FTIRS), etc.) and microcalorimetry combined with detailed mathematical modeling. In this chapter efficiency of such approach is illustrated for the case of mechanism of methane dry reforming over nanocomposite catalysts comprised of metal alloy nanoparticles supported on mixed oxides with a high mobility and reactivity of the surface/near surface oxygen species.