1. Increased Surface Area: Smaller particles have a higher surface area-to-volume ratio, providing more active sites for catalytic reactions. 2. Enhanced Selectivity: Miniaturized catalysts can be fine-tuned to favor specific reactions, reducing by-products. 3. Reduced Material Usage: Less catalyst material is needed, lowering costs and minimizing waste. 4. Improved Heat and Mass Transfer: Smaller systems allow for better control over reaction conditions, leading to higher efficiency.