Kinetics and CatalysisKinetics and CatalysisКинетика и катализ0453-88113034-5413The Russian Academy of Sciences68986110.31857/S0453881125020014SKJMKWARTICLESСТАТЬИResearch ArticlePt–Ga catalysts based on highly porous silica mcm-41 for propane dehydrogenationPt−Ga-катализаторы на основе высокопористого оксида кремния MCM-41 для дегидрирования пропанаZubkovA. V.ЗубковА. В.
Russian Federation
zubkov.chem@gmail.comBugrovaT. A.БугроваТ. А.
Russian Federation
zubkov.chem@gmail.comEvdokimovaE. V.ЕвдокимоваЕ. В.
Russian Federation
zubkov.chem@gmail.comMamontovG. V.МамонтовГ. В.
Russian Federation
zubkov.chem@gmail.comTomsk State UniversityФГАОУ ВО Томский государственный университет0409202566267792508202525082025Copyright ©; 2025, Russian Academy of SciencesCopyright ©; 2025, Российская академия наук2025Russian Academy of SciencesРоссийская академия наукhttps://snv63.ru/0453-8811/article/view/689861

Highly porous SiO2 supports with the MCM-41 structure were synthesized by template method. Pt–Ga catalysts for propane dehydrogenation were obtained using the impregnation method. The structure of the synthesized samples was studied by low-temperature nitrogen adsorption and X-ray phase analysis (XRD), and the properties of catalyst reduction were studied by temperature-programmed reduction in hydrogen (TPR-H2). The catalytic properties were studied in the reaction of propane dehydrogenation, and the influence of hydrogen in the composition of the reaction mixture was studied. It has been shown that the addition of hydrogen into the reaction mixture leads to an increase in the stability and activity of platinum catalysts.

Синтезирован высокопористый носитель на основе SiO2 со структурой МСМ-41. Методом пропитки получены Pt- и Pt−Ga-катализаторы дегидрирования пропана. Структура приготовленных образцов исследована методами низкотемпературной адсорбции азота, рентгенофазового анализа (РФА), особенности восстановления катализаторов – методом температурно-программированного восстановления в водороде (ТПВ-Н2). Каталитические свойства протестированы в реакции дегидрирования пропана, изучено влияние добавки водорода в состав реакционной смеси на активность катализаторов. Разработанный подход продемонстрировал возможность получения материалов на основе MCM-41, характеризующихся упорядоченной мезопористой структурой (мезопоры размером 3–4 нм) и высокой удельной поверхностью, что делает их перспективными для их применения в качестве носителей для катализаторов. Показано, что введение водорода в состав реакционной смеси приводит к увеличению стабильности и активности платиновых катализаторов.

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