Magnetism can enhance catalytic processes through several mechanisms:
1. Improved Separation and Recycling: Magnetic nanoparticles can be easily separated from reaction mixtures using an external magnetic field. This simplifies the recycling of catalysts, making processes more sustainable and cost-effective.
2. Increased Surface Area: Magnetic materials often have high surface area-to-volume ratios, which can increase the availability of active sites for catalysis, thereby improving reaction rates.
3. Localized Heating: Magnetic materials can generate localized heating under an alternating magnetic field, known as magnetic hyperthermia. This can increase the reaction rate by providing the necessary thermal energy directly at the active sites.