Several factors influence the dispersion of active sites, including:
- Support Material: The choice of support material can significantly impact the dispersion. For instance, materials with high surface area, such as alumina or silica, are often used to enhance dispersion. - Preparation Method: The method used to prepare the catalyst, such as impregnation, co-precipitation, or sol-gel, can affect the dispersion of active sites. - Thermal Treatment: The conditions under which the catalyst is calcined or reduced can influence the dispersion. High temperatures might cause sintering, reducing dispersion.