What are the Challenges Associated with Concentration Gradients in Catalysis?
Managing concentration gradients presents several challenges:
Diffusion Limitations: In some cases, especially in porous catalysts, the rate of diffusion can limit the overall reaction rate. Heat Management: Exothermic reactions can lead to hot spots, affecting the concentration gradient and reaction rate. Product Inhibition: Accumulation of products at the catalyst surface can hinder the reaction by reducing the concentration gradient.