Several factors influence the thermal stability of catalysts, including:
Material Composition: Catalysts made from materials with high melting points and robust chemical structures, such as certain metal oxides and ceramics, tend to be more thermally stable. Sintering Resistance: The ability to resist sintering, where particles coalesce and lose surface area, is crucial for maintaining activity at high temperatures. Phase Stability: Catalysts that maintain their phase structure under thermal stress are more stable. Support Material: The choice of support material can also impact thermal stability. For instance, alumina and zirconia are often used as supports to enhance thermal stability.
