Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation Reaction

The influence of metals with different redox properties and a carbon carrier on the activity of mono-, bi- and trimetallic Pt-Ni-Cr/C catalysts has been studied in the bicyclohexyl dehydrogenation reaction as the hydrogen release stage in hydrogen storage. An increase in the conversion (X > 62%)...

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Main Authors: Alexander N. Kalenchuk, Leonid M. Kustov
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/27/23/8416
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author Alexander N. Kalenchuk
Leonid M. Kustov
author_facet Alexander N. Kalenchuk
Leonid M. Kustov
author_sort Alexander N. Kalenchuk
collection DOAJ
description The influence of metals with different redox properties and a carbon carrier on the activity of mono-, bi- and trimetallic Pt-Ni-Cr/C catalysts has been studied in the bicyclohexyl dehydrogenation reaction as the hydrogen release stage in hydrogen storage. An increase in the conversion (X > 62%) of bicyclohexyl and selectivity for biphenyl (S > 84%) was observed on trimetallic catalysts Pt-Ni-Cr/C compared with the monometallic catalyst Rt/C (X > 55%; S > 68%). It has been established that the increase in the conversion of bicyclohexyl and selectivity for biphenyl in the dehydrogenation reaction on trimetallic catalysts is due to an increase in the activity of Pt nanoparticles in the vicinity of local Cr-Ni clusters of solid substitution solutions.
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spelling doaj.art-510333eccd064815946fc74297c792292023-11-24T11:41:52ZengMDPI AGMolecules1420-30492022-12-012723841610.3390/molecules27238416Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation ReactionAlexander N. Kalenchuk0Leonid M. Kustov1Chemistry Department, Moscow State University, 1 Leninskie Gory, Bldg. 3, 119991 Moscow, RussiaChemistry Department, Moscow State University, 1 Leninskie Gory, Bldg. 3, 119991 Moscow, RussiaThe influence of metals with different redox properties and a carbon carrier on the activity of mono-, bi- and trimetallic Pt-Ni-Cr/C catalysts has been studied in the bicyclohexyl dehydrogenation reaction as the hydrogen release stage in hydrogen storage. An increase in the conversion (X > 62%) of bicyclohexyl and selectivity for biphenyl (S > 84%) was observed on trimetallic catalysts Pt-Ni-Cr/C compared with the monometallic catalyst Rt/C (X > 55%; S > 68%). It has been established that the increase in the conversion of bicyclohexyl and selectivity for biphenyl in the dehydrogenation reaction on trimetallic catalysts is due to an increase in the activity of Pt nanoparticles in the vicinity of local Cr-Ni clusters of solid substitution solutions.https://www.mdpi.com/1420-3049/27/23/8416hydrogen storagebicyclohexyldehydrogenationPtNiCr/C catalysts
spellingShingle Alexander N. Kalenchuk
Leonid M. Kustov
Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation Reaction
Molecules
hydrogen storage
bicyclohexyl
dehydrogenation
PtNiCr/C catalysts
title Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation Reaction
title_full Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation Reaction
title_fullStr Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation Reaction
title_full_unstemmed Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation Reaction
title_short Activity of Mono-, Bi-, and Trimetallic Catalysts Pt-Ni-Cr/C in the Bicyclohexyl Dehydrogenation Reaction
title_sort activity of mono bi and trimetallic catalysts pt ni cr c in the bicyclohexyl dehydrogenation reaction
topic hydrogen storage
bicyclohexyl
dehydrogenation
PtNiCr/C catalysts
url https://www.mdpi.com/1420-3049/27/23/8416
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AT leonidmkustov activityofmonobiandtrimetalliccatalystsptnicrcinthebicyclohexyldehydrogenationreaction