How Does Dielectric Constant Affect Catalytic Activity?
The dielectric constant can modulate the catalytic activity by influencing the charge distribution and polarization at the interface. For instance, in the case of zeolite catalysts, the framework's dielectric properties can affect the acid strength of the sites, thereby altering the reaction pathways. Similarly, for metal-supported catalysts, the support's dielectric constant can influence the electron density on the metal particles, impacting their catalytic behavior.