Despite their advantages, designing effective nanocatalysts poses several challenges:
Aggregation: Nanoparticles tend to aggregate, reducing their effective surface area and catalytic activity. Stability: Maintaining the stability of nanocatalysts under reaction conditions is challenging. Scalability: Scaling up the production of nanocatalysts while maintaining uniformity and performance is difficult. Environmental Impact: The environmental impact of nanomaterials, including potential toxicity, needs thorough evaluation.