Several techniques are employed to control the particle size of catalysts: - Synthesis Methods: Techniques such as sol-gel, hydrothermal synthesis, and co-precipitation allow precise control over the size and distribution of particles. - Post-Synthesis Treatment: Calcination and reduction processes can be used to modify particle size after initial synthesis. - Use of Stabilizers: Stabilizers or surfactants can be added during synthesis to prevent excessive growth or aggregation of particles.
