A study of Fe(III)TPPCl encapsulated in zeolite NaY and Fe(III)NaY in the oxidation of n-octane, cyclohexane, 1-octene and 4-octene

Cele, Mduduzi N.; Friedrich, Holger B.; Bala, Muhammad D.

doi:10.1007/s11144-013-0656-0

Cited by 15 publications

(8 citation statements)

References 37 publications

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“…G.F. Li et al [45] assumed that, incorporation of Fe 3+ (with small ion radius 0.06 nm) into CeO2/ZrO2 lattice (with big ion radius Ce 4+ 0.097nm, Zr 4+ 0.084 nm), resulted in the undetectable Fe2O3 peaks. This can be the same reason for zeolite supported Fe sample, where the Fe may be encapsulated in the NaY zeolite cages [46].…”

Section: Characterization Of Fresh Catalystsmentioning

confidence: 66%

Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials

Reddy

Harb

et al. 2017

Applied Catalysis B: Environmental

194

103

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Highlights  Regardless preparation methods and Fe loading, Fe-Al2O3 catalysts showed the best CMD performance.  The selective formation of CNTs over Fe-Al2O3 catalysts is also speculated to be vital for their good CMD activity.  The graphite is proposed to be spurted out from an unstable over-stoichiometric iron carbide Fe3C1+x decomposition back to Fe3C and C.  At a low SV of 1.875 L/gcat•h, this catalyst showed a stable methane conversion of c.a. 70% for as long as 400 min.

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Section: Characterization Of Fresh Catalystsmentioning

confidence: 66%

Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials

Reddy

Harb

et al. 2017

Applied Catalysis B: Environmental

194

103

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“…Among them, both Fe supported on bentonite and Fe/Al‐MCM‐41 showed better activity than other transition metals in the hydroxylation of phenol . Furthermore, Fe loaded on MFI‐type silicalite also exhibited high selectivity for some oxidation reactions . Therefore, in this paper, Ni was embedded into the skeleton of MOF‐5 by in situ synthesis, and then Fe(III) as catalytic active component was loaded on MOF‐5(Ni) to prepare a new Fe(III)/MOF‐5(Ni) catalyst.…”

Section: Introductionmentioning

confidence: 99%

A New Fe(III)/MOF‐5(Ni) Catalyst for Highly Selective Synthesis of Catechol from Phenol and Hydrogen Peroxide

Xiang

et al. 2019

ChemistrySelect

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A new Fe(III)/MOF-5(Ni) catalyst with high hydrostability was prepared using an equal load method under room temperature, and nearly 100% selectivity for catechol and 63.2% yield of dihydroxybenzene were obtained in hydroxylation of phenol with H 2 O 2 over Fe(III)/MOF-5(Ni) catalyst.A new Fe(III)/MOF-5(Ni) catalyst was prepared using an equal load method under room temperature. The Fe(III)/MOF-5(Ni) was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), Brunauer À Emmett À Teller (BET) measurements, infrared spectra (IR) and X-MaxN Energy spectrum. The results showed that by adding Ni into the [Zn 4 O] metal frame of MOF-5 to partially replace Zn, the formed metal coordination group [Ni 4 O(BDC) 3 ] enhanced the hydrostability of MOF-5(Ni).The catalytic activity was evaluated for phenol hydroxylation with hydrogen peroxide (30%). Compared with 2%Fe(III)/MOF-5, the yield of dihydroxybenzene greatly increased to 63.2% from 37% and the selectivity for catechol reached near 100% over 2%Fe(III)/ MOF-5(Ni)a with the Zn 2 + :Ni 2 + molar ratio 1:1, at lower reaction temperature 80°C, reaction time 2 h and catalyst to phenol mass ratio 0.053. It proved that the loading of both Ni and Fe 3 + into MOF-5 greatly increased the catalytic activity for the hydroxylation of phenol with hydrogen peroxide, and the plausible reaction mechanism of phenol hydroxylation with H 2 O 2 over Fe(III)/MOF-5(Ni) catalyst was also proposed.

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“…Figure 4 A presents the results of the thermogravimetric analysis. The mass change in the range of 50–200 °C corresponds to the loss of adsorbed water [ 34 , 35 ]. Further increase in temperature does not cause any significant mass loss of zeolite sample.…”

Section: Resultsmentioning

confidence: 99%

“…Further increase in temperature does not cause any significant mass loss of zeolite sample. The observed weight loss indicated the final decomposition products of NaY zeolite are SiO 4 and AlO 4 [ 34 , 35 ]. N 2 adsorption/desorption isotherm was performed to evaluate the specific surface area, pore size, and pore volume of zeolite ( Figure 4 B).…”

Section: Resultsmentioning

confidence: 99%

A New Type of Composite Membrane PVA-NaY/PA-6 for Separation of Industrially Valuable Mixture Ethanol/Ethyl Tert-Butyl Ether by Pervaporation

et al. 2020

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Pervaporation is a membrane technique used to separate azeotropic and close boiling solvents. Heterogenous PVA composite membranes with NaY zeolite supported on polyamide-6 were fabricated and utilized in organic–organic pervaporation. The efficiency of prepared membranes was evaluated in the separation of ethanol/ethyl tert-butyl ether (EtOH/ETBE) using separation factor (β) and the thickness normalized pervaporation separation index (PSIN). Implementation of the fringe projection phase-shifting method allowed to the determined contact angle corrected by roughness. The influence of the presence of water traces in the feed on the overall separation efficiency was also discussed using the enrichment factor for water (EFwater). The incorporation of NaY into PVA matrix increases surface roughness and hydrophilicity of the composite membrane. It was found that membranes selectively transport ethanol from the binary EtOH/ETBE mixture. The values of β (2.3) and PSIN (288 μm g m−2 h−1) for PVA-NaY/PA6 membrane were improved by 143% and 160% in comparison to the values for the pristine PVA/PA6 membrane. It was found that membranes showed EFwater > 1, thus revealing the preferential transport of water molecules across membranes. These results are also significant for the design of membranes for the removal of water excess from the mixtures of organic solvents.

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A study of Fe(III)TPPCl encapsulated in zeolite NaY and Fe(III)NaY in the oxidation of n-octane, cyclohexane, 1-octene and 4-octene

Cited by 15 publications

References 37 publications

Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials

Fe catalysts for methane decomposition to produce hydrogen and carbon nano materials

A New Fe(III)/MOF‐5(Ni) Catalyst for Highly Selective Synthesis of Catechol from Phenol and Hydrogen Peroxide

A New Type of Composite Membrane PVA-NaY/PA-6 for Separation of Industrially Valuable Mixture Ethanol/Ethyl Tert-Butyl Ether by Pervaporation

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