The monooxidation of ethylene with hydrogen peroxide on the per-FTPhPFe3+OH/Al2O3 biomimetic

Nasirova, U. V.; Gasanova, L. M.; Nagiev, T. M.

doi:10.1134/s0036024410060099

Cited by 6 publications

(5 citation statements)

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“…In contrast to the well-known studies on biomimetic oxidation of cyclohexane, carried out mainly in the liquid phase, the gas-phase oxidation of cyclohexane on heterogeneous bioimitator, as was shown in [12,13], has significant advantages: the process is carried out in a flow system with a fixed catalyst layer through more simplified technology, where reaction products are not mixed with the catalyst and after the reaction their separation is not required and no additional costs are required.…”

Section: Introductionmentioning

confidence: 92%

Mechanism of Biomimetic Oxidation of Cyclohexane to Cyclohexanone by Hydrogen Peroxide

Aghamammadova¹

2021

AChJ

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The process of gas-phase oxidation of cyclohexane was studied in the presence of a heterogeneous biomimetic catalyst (per-FTPhPFe(III)OH/Al2O3), at 130–2500C, in which high yields of cyclohexanone and cyclohexanol were obtained up to 25.2% with a selectivity of ~80% at a cyclohexane conversion of 34%. The mechanism of the conversion of cyclohexane to cyclohexanone has been studied in detail, and the coherently synchronized character of the reaction proceeding is shown

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Section: Introductionmentioning

confidence: 92%

Mechanism of Biomimetic Oxidation of Cyclohexane to Cyclohexanone by Hydrogen Peroxide

Aghamammadova¹

2021

AChJ

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“…The investigation of resonance Raman spectra of catalase or monooxygenase bioimitators, PPFe 3+ OH/Al 2 O 3 and penta-FTPhPFe 3+ OH/Al 2 O 3 showed that the frequencies ν 4 , ν 3 , ν 2 , ν 37 , ν 10 correspond to the values 1372, 1491, 1574, 1593 and 1631 cm −1 [10,12], which are characteristic of iron porphyrin catalase [16], and that the high-spin heme ion Fe 3+ is present in the fifth coordination position (Fig. 9).…”

Section: Study Of the Structure And Physicochemical Properties Of Sup...mentioning

confidence: 99%

“…A "green oxidant"-hydrogen peroxide-was used as an oxidizing agent. Referring to [8][9][10][11][12][13], we can say that hydrogen peroxide, having redox properties and an inducing effect, as will be shown below, promotes the selective oxidation of the studied compounds under very moderate conditions. The process was carried out in a flow-through reactor with a special design, which provides introduction of H 2 O 2 into the reaction zone in a non-decomposed form.…”

Section: Investigation Of the Catalytic Activity Of The Synthesized B...mentioning

confidence: 99%

“…The developed biomimetic catalysts based on heme complex, which are the active part of cytochrome P-450, exhibited high activity in hydrocarbon monooxidation reactions. For example, the heme-containing biomimetic catalyst PPFe 3+ OH/AlMgSi exhibited high activity in the methane-to-methanol conversion reaction, where the methanol yield was higher than 40% with its 56% conversion [9,10]. However, this catalyst was very unstable due to the breaking of heme bridging when exposed to temperature and an oxidizing agent.…”

Section: Introductionmentioning

confidence: 99%

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Coherently synchronized reaction of methane oxidation by green oxidizer–hydrogen peroxide – over the biomimetic catalyst iron pentafluorotetraphenylporphyrin deposited on alumina

Nahmatova

Gasanova

Vodyankina

et al. 2022

Reac Kinet Mech Cat

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The activity of penta- FTPhPFe(III)/Al2O3 biomimetic catalyst in the reaction of methane direct conversion into methanol by green oxidant hydrogen peroxide was studied at T = 150–350 °C and atmospheric pressure, where methanol yield was 19.2% with methane conversion of 28%. Based on the results of the structural analysis of the Al2O3 support and the biomimetic catalyst sample the mesoporosity of support with pore size in the range of dp = 2.4–22.2 nm in the cylindric shape with an open end and the synthesized biomimetic nanostructure were determined. The data on the definition of the nature and quantitative assessment of Al2O3 support acid–base centers are given that made possible to describe probable mechanism of methane coherent-synchronized oxidation into methanol on the biomimetic.

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“…The purpose of this work is to determine new characteristics of kinetics of multidisciplinary interrelated chemical reactions occurring in terms of chemical interference [1][2][3][4]. One of these interrelated (coherent) synchronous reactions is biomimetic oxidation of ethylene by hydrogen peroxide with subsequent conversion to acetaldehyde [5]:…”

Section: Introductionmentioning

confidence: 99%

NEW METHOD OF KINETIC MODELING OF ETHYLENE OXIDATION REACTION TO ETHYL ALCOHOL AND ACETALDEHYDE BY HYDROGEN PEROXIDE ON THE PER-FTPhPFe3+OH/Al2O3

Mammadova,

Gasanova,

Nagiev

2023

Chemical Problems

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The process of biomimetic monooxidation of ethylene into ethyl alcohol and acetaldehyde by hydrogen peroxide on the per-FTPhPFe3+OH/Al2O3 bioimitator, which showed high activity and unique resistance to the action of high-active intermediate reaction products was investigated. As a result of studying the kinetic regularities of the selective biomimetic oxidation of ethylene by hydrogen peroxide, a coherent-synchronized nature of the reaction was observed, consisting of two reactions: 1) primary (catalase) and 2) secondary (monooxygenase and peroxidase) reactions. A new approach to the kinetic modeling based on the determinant equation and coherence correlation of catalase-monooxygenase and catalase-peroxidase reactions coherently synchronized with each other was developed. The kinetic model of the process was developed on the basis of the determinant equation, which allows assessing the coherent nature of synchronously flowing reactions both qualitatively and quantitatively. Effective rate constants of catalase, monooxygenase and peroxidase reactions were determined based on this model as well as their effective activation energies were calculated.

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The monooxidation of ethylene with hydrogen peroxide on the per-FTPhPFe3+OH/Al2O3 biomimetic

Cited by 6 publications

References 1 publication

Mechanism of Biomimetic Oxidation of Cyclohexane to Cyclohexanone by Hydrogen Peroxide

Mechanism of Biomimetic Oxidation of Cyclohexane to Cyclohexanone by Hydrogen Peroxide

Coherently synchronized reaction of methane oxidation by green oxidizer–hydrogen peroxide – over the biomimetic catalyst iron pentafluorotetraphenylporphyrin deposited on alumina

NEW METHOD OF KINETIC MODELING OF ETHYLENE OXIDATION REACTION TO ETHYL ALCOHOL AND ACETALDEHYDE BY HYDROGEN PEROXIDE ON THE PER-FTPhPFe3+OH/Al2O3

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