Effect of the Phase Composition of Molybdenum Boride on its Catalytic Properties in the Epoxidation of 1-Octene by tert-Butyl Hydroperoxide

Nykypanchuk, M. V.; Komarenskaya, Z. M.; Zhukrovskaya, M. O.

doi:10.1007/s11237-019-09588-4

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…32,33,38,39 However, the process of the activation of Mo 2 B, MoB, and MoB 2 has been explored only for the epoxidation of octene-1. [43][44][45] In this work, we studied the patterns of the activation of a Mo 2 B catalyst in the oxidation reaction of -ethylallyl ethylacrylate (EAEA) with tert-butyl hydroperoxide (TBHP) in toluene.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of BaCl2 on Corrosion Inhibition of Copper by Mentha Spicata Oil in 1M Nitric Acid: Gravimetric and Raman Spectroscopy Studies

Belarbi¹,

Dergal²,

Chikhi³

et al. 2023

ChChT

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The effect of Mentha Spicata oil and the mixture of BaCl2 and Mentha Spicata oil on corrosion of copper in 1M HNO3 have been investigated using weight loss methods and Raman spectroscopy. The study revealed that copper is more efficiently inhibited by Mentha Spicata oil in the presence of BaCl2 than pure oil. The inhibition efficiencies increased with increased concentration of the additives. The highest inhibition efficiency of 56.12 % was observed with single Mentha Spicata oil. An improved inhibition efficiency of 75.13 % was observed with the mixture of Mentha Spicata oil and BaCl2 at 298 K in 1M HNO3, an effect attributed to synergism between Mentha Spicata oil and BaCl2. Inhibition efficiency decreased with increase in temperature from 298-328 K. The adsorption of inhibitor molecules on metal surface followed Frumkin and Langmuir isotherm. Thermodynamic parameters such as enthalpy ∆H, free energy of adsorption ∆G and entropy of adsorption are obtained from experimental temperatures ranging from 298-328 K. Raman Spectroscopy and mapping were used to characterize the surface layers.

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Section: Introductionmentioning

confidence: 99%

Synergistic Effect of BaCl2 on Corrosion Inhibition of Copper by Mentha Spicata Oil in 1M Nitric Acid: Gravimetric and Raman Spectroscopy Studies

Belarbi¹,

Dergal²,

Chikhi³

et al. 2023

ChChT

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Activation of Mo2B Catalyst in the Epoxidation Reaction of α-Ethylallyl Ethyl Acrylate with tert-Butyl Hydroperoxide

Коmarenska¹,

Оliynyk²,

Makota³

2023

ChChT

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The regularities of Mo2B catalyst activation in the epoxidation reaction of alfa-ethylallyl ethyl acrylate with tert-butyl hydroperoxide have been studied. It has been shown that the catalyst activation process is described by the Avrami-Erofeev topokinetic equation and includes two successive stages – the nucleation and formation of a new phase active in the epoxidation reaction. The formation of epoxy only occurs in the presence of the activated form of the catalyst. The effective and topochemical process constants have been calculated.

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Influence of hydroperoxide epoxidation reaction conditions of octen-1 on the process of Mo2B activation and on the selectivity of epoxide formation

Коmarenska¹,

Nykypanchuk²,

Makota³

et al. 2020

CTAS

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A study of the process of activation of molybdenumboride catalyst in the reaction of epoxidation of octene-1 with tert-butyl hydroperoxide and the effect on this process of the initial concentration of octene-1, tert-butyl hydroperoxide and the amount of catalyst in the reaction mixture. As well as reaction products (tert-butyl alcohol and epoxy). It is shown that over time a new amorphous phase is formed on the surface of Mo2B, which actually catalyzes the epoxidation reaction of octene-1 with tert-butyl hydroperoxide. The formation of this phase is the reason for the acceleration of the rate of consumption of hydroperoxide and the selectivity of the formation of epoxide over time.

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Effect of the Phase Composition of Molybdenum Boride on its Catalytic Properties in the Epoxidation of 1-Octene by tert-Butyl Hydroperoxide

Cited by 3 publications

References 2 publications

Synergistic Effect of BaCl2 on Corrosion Inhibition of Copper by Mentha Spicata Oil in 1M Nitric Acid: Gravimetric and Raman Spectroscopy Studies

Synergistic Effect of BaCl2 on Corrosion Inhibition of Copper by Mentha Spicata Oil in 1M Nitric Acid: Gravimetric and Raman Spectroscopy Studies

Activation of Mo2B Catalyst in the Epoxidation Reaction of α-Ethylallyl Ethyl Acrylate with tert-Butyl Hydroperoxide

Influence of hydroperoxide epoxidation reaction conditions of octen-1 on the process of Mo2B activation and on the selectivity of epoxide formation

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