The effects of calcination on catalyst properties are multifaceted. It can induce:
Phase Transformation: Changing one crystal structure to another, often resulting in improved catalytic activity. Decomposition of Precursor Compounds: Breaking down precursor compounds to form active catalytic species. Sintering: Reducing the surface area and porosity, which can either positively or negatively impact catalytic performance depending on the application. Removal of Volatile Components: Eliminating impurities that may poison the catalyst or hinder its performance.