Catalyst Based on Mesoporous Silica Gel Doped with Terbium and Modified with Nickel Obtained by High-Temperature Template Method for Aromatic Hydrocarbons Hydrogenation

The catalytic properties of materials based on terbium-doped and nickel-modified mesoporous silica gels prepared by the high-temperature template method were studied. The surface morphology and textural characteristics of the obtained samples were studied by scanning electron microscopy, X-ray phase analysis, and inductively coupled plasma mass spectrometry. The catalytic activity of the obtained catalysts was studied in the hydrogenation reaction of benzene, m-, p-, and o-xylene in the temperature range of 80–170°C and at a hydrogen pressure of 3 atm. It was established that doping with terbium leads to an increase in the catalytic activity of the catalyst modified with nickel in the hydrogenation reaction of benzene derivatives. Therefore, it was shown that mesoporous silica gel doped with terbium and modified with nickel is an effective catalyst for the hydrogenation of benzene and xylenes.