Influence of the acid/base and redox properties of catalysts in the gas-phase dehydration-dehydrogenation of cyclohexanol on iron and titania containing mesoporous materials

A. Szegedi, Margarita Popova, K. Lázár

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Monocomponent and bicomponent iron and/or titanium modified MCM-41 materials prepared by direct synthesis at room temperature were investigated using X-ray diffraction (XRD), nitrogen physisorption, UV-Vis diffuse reflectance, FT-IR and Mössbauer spectroscopy. Their catalytic behavior was studied in cylohexanol conversion. Materials with high surface area and well-ordered pore structure were obtained. All modified mesoporous silicas possess high activity in cyclohexanol conversion. Bicomponent FeTiMCM-41 catalyst pretreated in hydrogen at 723 K presented the highest activity and selectivity to cyclohexanone.

Original languageEnglish
Pages (from-to)291-301
Number of pages11
JournalReaction Kinetics, Mechanisms and Catalysis
Volume104
Issue number2
DOIs
Publication statusPublished - Dec 2011

Fingerprint

Cyclohexanols
Mesoporous materials
Dehydrogenation
dehydrogenation
Dehydration
dehydration
Iron
titanium
Titanium
Gases
vapor phases
iron
catalysts
acids
Catalysts
Physisorption
Acids
Multicarrier modulation
Pore structure
Silicon Dioxide

Keywords

  • Cyclohexanol dehydrogenatiom
  • FeTiMCM-41
  • Titanium and iron modified MCM-41

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

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abstract = "Monocomponent and bicomponent iron and/or titanium modified MCM-41 materials prepared by direct synthesis at room temperature were investigated using X-ray diffraction (XRD), nitrogen physisorption, UV-Vis diffuse reflectance, FT-IR and M{\"o}ssbauer spectroscopy. Their catalytic behavior was studied in cylohexanol conversion. Materials with high surface area and well-ordered pore structure were obtained. All modified mesoporous silicas possess high activity in cyclohexanol conversion. Bicomponent FeTiMCM-41 catalyst pretreated in hydrogen at 723 K presented the highest activity and selectivity to cyclohexanone.",
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T1 - Influence of the acid/base and redox properties of catalysts in the gas-phase dehydration-dehydrogenation of cyclohexanol on iron and titania containing mesoporous materials

AU - Szegedi, A.

AU - Popova, Margarita

AU - Lázár, K.

PY - 2011/12

Y1 - 2011/12

N2 - Monocomponent and bicomponent iron and/or titanium modified MCM-41 materials prepared by direct synthesis at room temperature were investigated using X-ray diffraction (XRD), nitrogen physisorption, UV-Vis diffuse reflectance, FT-IR and Mössbauer spectroscopy. Their catalytic behavior was studied in cylohexanol conversion. Materials with high surface area and well-ordered pore structure were obtained. All modified mesoporous silicas possess high activity in cyclohexanol conversion. Bicomponent FeTiMCM-41 catalyst pretreated in hydrogen at 723 K presented the highest activity and selectivity to cyclohexanone.

AB - Monocomponent and bicomponent iron and/or titanium modified MCM-41 materials prepared by direct synthesis at room temperature were investigated using X-ray diffraction (XRD), nitrogen physisorption, UV-Vis diffuse reflectance, FT-IR and Mössbauer spectroscopy. Their catalytic behavior was studied in cylohexanol conversion. Materials with high surface area and well-ordered pore structure were obtained. All modified mesoporous silicas possess high activity in cyclohexanol conversion. Bicomponent FeTiMCM-41 catalyst pretreated in hydrogen at 723 K presented the highest activity and selectivity to cyclohexanone.

KW - Cyclohexanol dehydrogenatiom

KW - FeTiMCM-41

KW - Titanium and iron modified MCM-41

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