Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration

In this article, a series of effective catalysts based on betaine and sulfuric or phosphomolybdic acids was obtained. These compositions were characterized by various physicochemical methods and tested in the oxidation of sulfur- and nitrogenous-containing compounds by H<sub>2</sub>O<...

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Main Authors: Vladislav Gorbunov, Aleksey Buryak, Kirill Oskolok, Andrey G. Popov, Irina Tarkhanova
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Catalysts
Subjects:
Online Access:https://www.mdpi.com/2073-4344/13/4/664
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author Vladislav Gorbunov
Aleksey Buryak
Kirill Oskolok
Andrey G. Popov
Irina Tarkhanova
author_facet Vladislav Gorbunov
Aleksey Buryak
Kirill Oskolok
Andrey G. Popov
Irina Tarkhanova
author_sort Vladislav Gorbunov
collection DOAJ
description In this article, a series of effective catalysts based on betaine and sulfuric or phosphomolybdic acids was obtained. These compositions were characterized by various physicochemical methods and tested in the oxidation of sulfur- and nitrogenous-containing compounds by H<sub>2</sub>O<sub>2</sub>. An increase in the amount of heteropolyacid (HPA) leads to a non-linear change in acidity, and the degree of removal of sulfur-containing compounds correlates with the concentration of Bronsted acid sites on the surface. On the contrary, the degree of pyridine removal is determined primarily by the content of heteropolyacids in the catalyst.
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spelling doaj.art-5e9e5084f99146dd96acf20b645a52492023-11-17T18:40:50ZengMDPI AGCatalysts2073-43442023-03-0113466410.3390/catal13040664Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid ConcentrationVladislav Gorbunov0Aleksey Buryak1Kirill Oskolok2Andrey G. Popov3Irina Tarkhanova4Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaA.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31-4 Leninsky Prospect, 119071 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaIn this article, a series of effective catalysts based on betaine and sulfuric or phosphomolybdic acids was obtained. These compositions were characterized by various physicochemical methods and tested in the oxidation of sulfur- and nitrogenous-containing compounds by H<sub>2</sub>O<sub>2</sub>. An increase in the amount of heteropolyacid (HPA) leads to a non-linear change in acidity, and the degree of removal of sulfur-containing compounds correlates with the concentration of Bronsted acid sites on the surface. On the contrary, the degree of pyridine removal is determined primarily by the content of heteropolyacids in the catalyst.https://www.mdpi.com/2073-4344/13/4/664desulfurizationdenitrogenationionic liquidspolyoxometalates
spellingShingle Vladislav Gorbunov
Aleksey Buryak
Kirill Oskolok
Andrey G. Popov
Irina Tarkhanova
Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration
Catalysts
desulfurization
denitrogenation
ionic liquids
polyoxometalates
title Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration
title_full Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration
title_fullStr Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration
title_full_unstemmed Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration
title_short Supported Ionic Liquid Catalysts for the Oxidation of S- and N-Containing Compounds—The Effect of Bronsted Sites and Heteropolyacid Concentration
title_sort supported ionic liquid catalysts for the oxidation of s and n containing compounds the effect of bronsted sites and heteropolyacid concentration
topic desulfurization
denitrogenation
ionic liquids
polyoxometalates
url https://www.mdpi.com/2073-4344/13/4/664
work_keys_str_mv AT vladislavgorbunov supportedionicliquidcatalystsfortheoxidationofsandncontainingcompoundstheeffectofbronstedsitesandheteropolyacidconcentration
AT alekseyburyak supportedionicliquidcatalystsfortheoxidationofsandncontainingcompoundstheeffectofbronstedsitesandheteropolyacidconcentration
AT kirilloskolok supportedionicliquidcatalystsfortheoxidationofsandncontainingcompoundstheeffectofbronstedsitesandheteropolyacidconcentration
AT andreygpopov supportedionicliquidcatalystsfortheoxidationofsandncontainingcompoundstheeffectofbronstedsitesandheteropolyacidconcentration
AT irinatarkhanova supportedionicliquidcatalystsfortheoxidationofsandncontainingcompoundstheeffectofbronstedsitesandheteropolyacidconcentration