What is the Role of Surface Chemistry in Catalyst Deactivation?
Catalyst deactivation is a significant challenge in industrial catalysis. Surface chemistry plays a crucial role in various deactivation mechanisms, such as coking, sintering, and poisoning. Coking involves the buildup of carbonaceous deposits on the catalyst surface, blocking active sites. Sintering is the agglomeration of metal particles, reducing surface area and active sites. Poisoning occurs when impurities bind irreversibly to active sites, rendering them inactive. Understanding these processes helps in developing strategies to regenerate and stabilize catalysts.
