The shape of the pores can significantly affect the catalytic performance in various ways:
Diffusion: Pore shape influences how easily molecules can move in and out of the pores. For example, cylindrical pores facilitate easier diffusion compared to slit-shaped pores. Surface Area: Different pore shapes offer varying surface areas, which can affect the availability of active sites for the catalytic reaction. Selectivity: Pore shape can also impact the selectivity of the catalyst. Certain shapes can restrict the access of larger molecules, thereby enhancing the selectivity for smaller molecules.