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

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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Veröffentlicht in:Molecules (Basel, Switzerland) Switzerland), 2022-12, Vol.27 (23), p.8416
Hauptverfasser: Kalenchuk, Alexander N, Kustov, Leonid M
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Atoms & subatomic particles
bicyclohexyl
Biphenyl
Biphenyl Compounds
Carbon
Catalysts
Chromium
Conversion
Dehydrogenation
Excipients
Hydrocarbons
Hydrogen
Hydrogen storage
Hydrogenation
Metals
Nanoparticles
PtNiCr/C catalysts
Redox properties
Selectivity
Spectrum analysis
Substitution reactions
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Zusammenfassung: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.
ISSN:1420-3049
1420-3049
DOI:10.3390/molecules27238416