singleatom

Singleatom refers to an isolated atom supported on a material substrate. These individual atoms act as the smallest possible catalytic sites, offering unique electronic and chemical properties. Their atomic dispersion prevents ensemble effects often observed in nanoparticles, leading to enhanced activity and selectivity in various chemical reactions.

The development of single-atom catalysts (SACs) has been a significant advancement in catalysis research. These catalysts can be synthesized using methods like wet impregnation, atomic layer deposition, and defect engineering. The nature of the support material plays a crucial role in stabilizing the single atoms and influencing their catalytic performance. Common support materials include metal oxides, carbon materials, and zeolites.

The primary advantage of single-atom catalysts lies in their maximum atom utilization efficiency. Every single atom is exposed and accessible, making them highly efficient for catalytic processes. This high efficiency translates to lower catalyst loading and reduced cost. Furthermore, the precise control over the atomic environment allows for fine-tuning of catalytic activity and selectivity, opening avenues for designing highly specific catalysts for challenging reactions. Applications of single-atom catalysts span a wide range, including electrocatalysis, oxidation, reduction, and biomass conversion. Research continues to focus on understanding the fundamental mechanisms of SACs and developing more robust and scalable synthesis strategies.