One-pot synthesis of Ir subnanosized clusters supported on MWW nanosheets as effective catalysts for C-C bond hydrogenolysis

The rational design synthesis of metal catalysts with high dispersion and ordered structure is a challenging subject in materials chemistry and heterogeneous catalysis. In this study, we report one-pot synthesis of Ir subnanosized particles supported on MWW nanosheets and their application in hydrog...

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Bibliographic Details
Published inMicroporous and mesoporous materials Vol. 381; p. 113356
Main Authors Naranov, Evgeny, Sadovnikov, Alexey, Arapova, Olga, Gorbunov, Dmitry, Gorbunov, Alexander, Shapovalova, Svetlana, Guda, Alexander, Soldatov, Alexander, Maximov, Anton
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.01.2025
Subjects
Carbene intermediates
Hydrogenolysis
Hydrothermal synthesis
Iridium catalysts
MWW nanosheets
Zeolites
Iridium catalysts
MWW nanosheets
Hydrothermal synthesis
Carbene intermediates
Hydrogenolysis
Zeolites
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Summary:The rational design synthesis of metal catalysts with high dispersion and ordered structure is a challenging subject in materials chemistry and heterogeneous catalysis. In this study, we report one-pot synthesis of Ir subnanosized particles supported on MWW nanosheets and their application in hydrogenolysis of decalin. Here, it has been found that C-C bond cleavage occurs via a synergistic carbocation and carbene mechanism on Ir-containing catalysts, and via carbocation in the case of solid acids. The combination of optimal acidic and metallic site characteristics in the subnanosized Ir supported on MWW nanosheets Pill_Ir-ZN_150 sample contributes to the high activity of the final catalysts. We expect that these Ir catalytic systems will open up more opportunities for hydrogenolysis of naphthenics to high-value products. [Display omitted]
ISSN:1387-1811
DOI:10.1016/j.micromeso.2024.113356