TGA is crucial in catalysis for several reasons: 1. Thermal Stability: It helps determine the thermal stability of catalysts, which is essential for their performance and longevity. 2. Decomposition Temperatures: Identifying the decomposition temperatures of catalysts aids in optimizing reaction conditions. 3. Quantification of Adsorbed Species: TGA can quantify the amount of adsorbed species such as water, organic molecules, or reactants on the catalyst surface. 4. Phase Changes: It helps in detecting phase changes in catalysts, which can impact their catalytic activity.