The structure of nanocatalysts can be quite complex and includes several important features:
Surface Morphology The surface morphology includes features like facets, edges, and corners, which can all act as active sites for catalytic reactions. Atomic arrangements at these sites can differ significantly from those in the bulk material, affecting reactivity.
Porosity Porous nanocatalysts provide channels that allow reactants to access internal active sites, thus increasing the overall efficiency. Different types of porous structures like mesoporous and microporous frameworks are used depending on the application.
Defects and Doping Introducing defects or doping the catalyst with other elements can significantly impact its catalytic properties. Defects can create additional active sites, while doping can modify the electronic structure to enhance activity or selectivity.