Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

H and O surface diffusion

On most oxides, O surface diffusion can be observed and measured in the 250-500°C temperature range. Above 500°C, rates of exchange on supported metal catalysts are extremely high and the coefficient of surface [Pg.172]

Relative values of the coefficient of diffusion are given in Table 6. [Pg.173]

Oxides (BET area) Relative Oxygen Mobility at 400°C Relative Hydrogen Mobility at 75° C  [Pg.174]

Case of Oxides with Very High Oxygen Mobility [Pg.174]

The flux of species j arriving at the surface (adsorption step) was [Pg.174]

See other pages where H and O surface diffusion is mentioned: [Pg.172]   


SEARCH



Diffuse surface

H-surface

Surface diffusion

Surface diffusion Diffusivity

Surface diffusivity

© 2024 chempedia.info