Assuming reactions S1 to S4 in the image. How can I determine the reaction rate in mol/m2.s for the site species with the given Arrhenius parameters?
Cs' and Cs-H are site species on the surface.
Cs' is just an abbreviation for carbon site and unoccupied by hydrogen. Cs-H is hydrogen occupied carbon site.
For ease of calculation assume an arbitrary site concentration of site species in mol/m2 and the gas species in mol/m3.
Determining the reaction rate for surface reactions involves understanding the kinetics of the reaction occurring at the interface between a solid surface and the surrounding fluid or gas. Surface reactions are characterized by molecules or atoms adsorbing onto the surface, reacting, and then desorbing. The reaction rate is influenced by factors such as surface area, temperature, pressure, and the nature of the adsorbates and the adsorbent. Here's a general approach to determine the reaction rate for surface reactions:
Surface reaction kinetics can be complex, and the specific approach to determining the reaction rate will depend on the specific reaction system and the available experimental data. In many cases, researchers use computational methods, such as density functional theory (DFT) calculations, to gain insights into the reaction mechanisms and kinetics at the atomic level. The combination of experimental data and computational modeling can provide a comprehensive understanding of surface reactions and their rate-determining steps.
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