Synthesis and characterization of mechanically activated bulky molybdenum sulphide catalysts

Taisia Feduschak, Akim Akimov, Maxim Morozov, Mikhail Uymin, Vladimir Zaikovskii, Igor Prosvirin, Alexander Vosmerikov, Sergey Zhuravkov, Vitalyi Vlasov, Victor Kogan

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2 Citations (Scopus)

Abstract

Bulky catalysts on the basis of MoS₂ nano-crystallites have been obtained for the first time from commercial molybdenite in one-step synthesis using mechanical-chemical treatment with small additives of polar liquids. Physical and chemical properties of the synthesized catalysts were studied using sedimentation analysis, XRD, XPS, TEM and thermal analysis. The catalytic activity of the catalysts was examined in the course of dibenzothiophene hydrodesulphurization followed by the GC-MS analysis of the reaction products. Correlations between the catalytic activity and the methanol quantity added in the course of mechanical-chemical activation were established. The pathways of dibenzothiophene hydrodesulfurization reactions over the synthesized catalysts were proposed.

Original language	English
Journal	Comptes Rendus Chimie
DOIs	https://doi.org/10.1016/j.crci.2016.01.011
Publication status	Accepted/In press - 2 Jul 2015

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Keywords

Hydrodesulphurization (HDS)
Mechanical activation (MA)
Molybdenum disulphide

ASJC Scopus subject areas

Chemical Engineering(all)
Chemistry(all)

Cite this

Feduschak, T., Akimov, A., Morozov, M., Uymin, M., Zaikovskii, V., Prosvirin, I., ... Kogan, V. (Accepted/In press). Synthesis and characterization of mechanically activated bulky molybdenum sulphide catalysts. Comptes Rendus Chimie. https://doi.org/10.1016/j.crci.2016.01.011

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abstract = "Bulky catalysts on the basis of MoS2 nano-crystallites have been obtained for the first time from commercial molybdenite in one-step synthesis using mechanical-chemical treatment with small additives of polar liquids. Physical and chemical properties of the synthesized catalysts were studied using sedimentation analysis, XRD, XPS, TEM and thermal analysis. The catalytic activity of the catalysts was examined in the course of dibenzothiophene hydrodesulphurization followed by the GC-MS analysis of the reaction products. Correlations between the catalytic activity and the methanol quantity added in the course of mechanical-chemical activation were established. The pathways of dibenzothiophene hydrodesulfurization reactions over the synthesized catalysts were proposed.",

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author = "Taisia Feduschak and Akim Akimov and Maxim Morozov and Mikhail Uymin and Vladimir Zaikovskii and Igor Prosvirin and Alexander Vosmerikov and Sergey Zhuravkov and Vitalyi Vlasov and Victor Kogan",

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T1 - Synthesis and characterization of mechanically activated bulky molybdenum sulphide catalysts

AU - Feduschak, Taisia

AU - Akimov, Akim

AU - Morozov, Maxim

AU - Uymin, Mikhail

AU - Zaikovskii, Vladimir

AU - Prosvirin, Igor

AU - Vosmerikov, Alexander

AU - Zhuravkov, Sergey

AU - Vlasov, Vitalyi

AU - Kogan, Victor

PY - 2015/7/2

Y1 - 2015/7/2

N2 - Bulky catalysts on the basis of MoS2 nano-crystallites have been obtained for the first time from commercial molybdenite in one-step synthesis using mechanical-chemical treatment with small additives of polar liquids. Physical and chemical properties of the synthesized catalysts were studied using sedimentation analysis, XRD, XPS, TEM and thermal analysis. The catalytic activity of the catalysts was examined in the course of dibenzothiophene hydrodesulphurization followed by the GC-MS analysis of the reaction products. Correlations between the catalytic activity and the methanol quantity added in the course of mechanical-chemical activation were established. The pathways of dibenzothiophene hydrodesulfurization reactions over the synthesized catalysts were proposed.

AB - Bulky catalysts on the basis of MoS2 nano-crystallites have been obtained for the first time from commercial molybdenite in one-step synthesis using mechanical-chemical treatment with small additives of polar liquids. Physical and chemical properties of the synthesized catalysts were studied using sedimentation analysis, XRD, XPS, TEM and thermal analysis. The catalytic activity of the catalysts was examined in the course of dibenzothiophene hydrodesulphurization followed by the GC-MS analysis of the reaction products. Correlations between the catalytic activity and the methanol quantity added in the course of mechanical-chemical activation were established. The pathways of dibenzothiophene hydrodesulfurization reactions over the synthesized catalysts were proposed.

KW - Hydrodesulphurization (HDS)

KW - Mechanical activation (MA)

KW - Molybdenum disulphide

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Access to Document

10.1016/j.crci.2016.01.011