The Influence of Inserted Metal Ions on Acid Strength of OH Groups in Faujasite

The number and the strength of acid sites in catalysts have paramount importance on their efficiency. In zeolites chemistry, increased content framework Al gives a higher strong sites. Their can be disadvantage catalytic reactions (e.g., methanol to olefins conversion) due undesired secondary coke formation. Here, Faujasite type zeolite with has been used for investigating role defects structure inserted (wet impregnation thermal treatment) metal cations (Mg, Co, Ni, Zn) OH Desorption deuterated acetonitrile, as probe molecule, was groups measurements at different temperatures (150, 200, 300 °C).