Catalysis: Catalyst Deactivation and Ageing

This lecture covers the topic of catalyst deactivation and ageing, discussing the chemical, thermal, and mechanical processes that lead to the loss of catalytic activity over time. It explores the effects of ageing on catalyst structure, active sites, and catalytic performance, as well as the countermeasures to mitigate deactivation. The lecture also delves into the impact of impurities and additives, such as sulfur, lead, phosphorous, zinc, and calcium, on catalyst performance. Additionally, it examines the phase transitions and transformations of Al2O3 under thermal ageing conditions, highlighting the importance of material science in designing optimized composites for catalytic applications.