SBA-15 is a type of mesoporous silica material that is widely utilized in the field of catalysis due to its unique structural properties. It was first synthesized by Stucky and co-workers in 1998. The material features uniform, hexagonally arranged mesopores with diameters typically ranging from 5 to 30 nanometers, and an extensive surface area. These properties make SBA-15 an excellent support material for a variety of catalysts.