Nanocatalysis, a burgeoning field at the intersection of nanotechnology and catalysis, focuses on enhancing catalytic processes through the use of nanoscale materials. These materials, such as nanoparticles, nanowires, and nanostructured catalyst supports, exhibit unique properties that significantly improve catalytic activity, selectivity, and efficiency compared to their bulk counterparts. Applications of nanocatalysis span various industries, including energy production, environmental remediation, and chemical synthesis. For instance, nanocatalysts are pivotal in fuel cells and hydrogen production, where they facilitate faster reactions and reduce energy consumption. In environmental applications, they are used for converting pollutants into less harmful substances and for wastewater treatment. Challenges in nanocatalysis include optimizing catalyst stability, scalability of production, and understanding the complex interactions at the nanoscale. Ongoing research focuses on designing novel nanostructures, exploring sustainable catalyst materials, and advancing characterization techniques to elucidate catalytic mechanisms.