How Do Particle Size and Shape Affect Catalytic Deactivation?
Catalytic deactivation can be influenced by particle size and shape. Smaller particles are more prone to sintering, where they coalesce into larger particles at high temperatures, reducing the active surface area. Particle shape can affect the deposition of coke or other deactivating species on the catalyst surface. Understanding these effects helps in designing more robust catalysts with longer lifetimes.