Cyclohexane Oxidation with an O2–H2 Mixture in the Presence of a Two-Component Pt/C–Heteropoly Acid Catalyst and Ionic Liquids Full article
| Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2017, Volume: 58, Number: 5, Pages: 522-532 Pages count : 11 DOI: 10.1134/S0023158417050147 | ||
| Tags | cyclohexane oxidation, heteropoly acid, hydrogen, ionic liquid, oxygen, Pt catalyst | ||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0006 (V.44.1.6) |
Abstract:
Approaches to increase the efficiency of Pt/C–heteropoly acid catalyst in a liquid-phase oxidation
of cyclohexane using an O2–H2 mixture were studied. It was shown that small additives of ionic liquid
(BMImBr, Bu4NBr, or Bu4NHSO4) significantly improve the catalytic effect of the Pt/C–H3PMo12O40–
CH3CN system at 35°C, by slowing the rate of side reactions resulting in water formation, increasing the rate
of oxygenate formation, and inhibiting their secondary oxidation reactions. The efficiency of H2 consumption
increases from 2 to 18–25%, while the selectivity of cyclohexane conversion is 92–98%. The substitution
of one or two Mo(VI) ions by V(V) in the structure of the heteropoly acid decreases these parameters. In the
presence of Bu4NHSO4, a Pt/C catalyst can be used many times. During the reaction, the heteropoly acid
present in the solution is in a reduced state under the action of the reaction medium and undergoes reversible
redox transformations. The nature of the catalytic action of the studied system is explained from the viewpoint
of the effect of ionic liquids on the properties of a Pt/C catalyst in activating O2, heteropoly molybdate chemistry,
and the known mechanisms of the peroxide oxidation of hydrocarbons.
Cite:
Kuznetsova L.I.
, Kuznetsova N.I.
Cyclohexane Oxidation with an O2–H2 Mixture in the Presence of a Two-Component Pt/C–Heteropoly Acid Catalyst and Ionic Liquids
Kinetics and Catalysis. 2017. V.58. N5. P.522-532. DOI: 10.1134/S0023158417050147 WOS Scopus РИНЦ ANCAN OpenAlex
Cyclohexane Oxidation with an O2–H2 Mixture in the Presence of a Two-Component Pt/C–Heteropoly Acid Catalyst and Ionic Liquids
Kinetics and Catalysis. 2017. V.58. N5. P.522-532. DOI: 10.1134/S0023158417050147 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Кузнецова Л.И.
, Кузнецова Н.И.
Окисление циклогексана смесью О2 и Н2 в присутствии двухкомпонентного катализатора Pt/C–гетерополикислота и ионных жидкостей
Кинетика и катализ. 2017. Т.58. №5. С.540-550. DOI: 10.7868/S0453881117050161 РИНЦ OpenAlex
Окисление циклогексана смесью О2 и Н2 в присутствии двухкомпонентного катализатора Pt/C–гетерополикислота и ионных жидкостей
Кинетика и катализ. 2017. Т.58. №5. С.540-550. DOI: 10.7868/S0453881117050161 РИНЦ OpenAlex
Dates:
| Submitted: | Jan 17, 2017 |
| Published print: | Sep 1, 2017 |
| Published online: | Sep 30, 2017 |
Identifiers:
| Web of science: | WOS:000411992000005 |
| Scopus: | 2-s2.0-85030634815 |
| Elibrary: | 31066776 |
| Chemical Abstracts: | 2017:1586810 |
| Chemical Abstracts (print): | 168:503553 |
| OpenAlex: | W2758224069 |