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Abstract <p>A series of MOR-type zeolites with a Si/Al ratio of ~5 were synthesized via seed-assisted hydrothermal crystallization. Their physicochemical properties were characterized by low-temperature nitrogen adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence spectrometry (XRF), and infrared spectroscopy of adsorbed pyridine (FTIR-Py). Their catalytic performance was tested in gas-phase toluene disproportionation. At a seed content of 10 wt % in the reaction mixture, the synthesized material exhibited the highest concentration of accessible Brønsted acid sites and the greatest catalytic activity.</p>

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Seed-Assisted Synthesis of Mordenite and Its Physicochemical and Catalytic Properties in Toluene Disproportionation

  • 期刊论文

  • 发表日期：

    2026年2月25日

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  • Anastasiia P. Dubtsova,
  • Egor P. Andriako,
  • Tatiana O. Bok,
  • Olga A. Ponomareva,
  • Irina I. Ivanova

摘要

Abstract

A series of MOR-type zeolites with a Si/Al ratio of ~5 were synthesized via seed-assisted hydrothermal crystallization. Their physicochemical properties were characterized by low-temperature nitrogen adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray fluorescence spectrometry (XRF), and infrared spectroscopy of adsorbed pyridine (FTIR-Py). Their catalytic performance was tested in gas-phase toluene disproportionation. At a seed content of 10 wt % in the reaction mixture, the synthesized material exhibited the highest concentration of accessible Brønsted acid sites and the greatest catalytic activity.