There are various methods to achieve delayed release in catalysis:
1. Encapsulation: This involves encapsulating the catalyst in a shell that dissolves or breaks down under specific conditions, such as a change in pH, temperature, or the presence of a particular substance. 2. Polymer Matrices: Catalysts can be embedded in polymer matrices that gradually release the catalyst over time. 3. Nanoparticles: Utilizing nanoparticles that release the catalyst in response to external stimuli such as light, magnetic fields, or ultrasound. 4. Layered Structures: Creating layered structures where the catalyst is progressively exposed to the reactants, ensuring a controlled release.
