Synthesis of stable H-galloaluminosilicate MFI with hierarchical pore architecture by surfactant-mediated base hydrolysis, and their application in propane aromatization

► H-galloaluminosilicate of hierarchical pore architecture for propane aromatization. ► The synthesis strategy involves steaming followed by CTAB mediated hydrolysis. ► Ordered mesoporous H-galloaluminosilicate showed superior aromatization activity. ► We report (gallination-degallination-“re-gallination”) effect. ► Mesoporous catalysts exhibit dispersed Ga in the form of extra framework species.