Creation of Acid Sites on SBA-15 Mesoporous Silica by Alumination

Abstract
The new mesoporous silica with large pore size, SBA-15, was aluminated through the reaction with aluminum chloride. The present alumination method showed a good control of aluminum content but little influence on the pore structure. Aluminum atoms were incorporated into the framework of SBA-15, which resulted in a new kind of mesoporous acid catalyst.