Vanadia loaded hierarchical ZSM-5 zeolite: a promising catalyst for epoxidation of cyclohexene under solvent free condition

Streamlined synthesis of iron and cobalt loaded MCM-48: High-performance heterogeneous catalysts for selective liquid-phase oxidation of toluene to benzaldehyde

“…While the parent siliceous materials showed promise, their catalytic activity was limited due to their framework neutrality. This prompted researchers to focus on developing modified mesoporous silica materials by incorporating various transition and inner transition metals like Ti, V, Cr, Mn and Ce either through framework substitution or as support [ [38] , [39] , [40] , [41] ]. These modified materials have demonstrated exceptional activity in a wide range of organic transformations including oxidation of aromatic and aliphatic hydrocarbons [ 42 ].…”