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Selective Production of Phenol on Bifunctional, Hierarchical ZSM-5 Zeolites.

ABSTRACT: Mono- and bimetallic Ni-, Ru- and Pt-modified hierarchical ZSM-5 materials were prepared by impregnation technique and characterized by X-ray diffraction (XRD), N2 physisorption, temperature-programmed reduction (TPR-TGA), ATR-FTIR and solid state NMR spectroscopy. Formation of finely dispersed nickel, ruthenium and platinum species was observed on the bimetallic catalysts. It was found that the peculiarity of the used zeolite structure and the modification procedure determine the type of formed metal oxides and their dispersion and reducibility. The samples' acidity was studied via FTIR spectroscopy of adsorbed pyridine. The changes in the zeolite structure were studied via solid-state NMR spectroscopy. The catalysts were investigated in a gas-phase hydrodeoxygenation, transalkylation and dealkylation reaction of model lignin derivative molecules for phenol production.

SUBMITTER: Popova M

PROVIDER: S-EPMC8231192 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature

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Selective Production of Phenol on Bifunctional, Hierarchical ZSM-5 Zeolites.

Popova Margarita M Szegedi Ágnes Á Oykova Manuela M Lazarova Hristina H Koseva Neli N Mihályi Magdolna R MR Shestakova Pavletta P

Molecules (Basel, Switzerland) 20210611 12

Mono- and bimetallic Ni-, Ru- and Pt-modified hierarchical ZSM-5 materials were prepared by impregnation technique and characterized by X-ray diffraction (XRD), N<sub>2</sub> physisorption, temperature-programmed reduction (TPR-TGA), ATR-FTIR and solid state NMR spectroscopy. Formation of finely dispersed nickel, ruthenium and platinum species was observed on the bimetallic catalysts. It was found that the peculiarity of the used zeolite structure and the modification procedure determine the typ ...[more]

PMID: 34208314

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