Robust bimetallic Pt–Ru catalysts for the rapid hydrogenation of toluene and tetralin at ambient temperature and pressure

[Display omitted] ► Alloy nanoparticles of Pt–Ru were synthesised. ► The complete catalyst synthesis was performed in air. ► Toluene was hydrogenated under ambient conditions and with no special precautions. ► The alloy with a molar ratio of 1 Pt to 1.5 Ru was much more active than either of the met...

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Veröffentlicht in:Applied catalysis. A, General Jg. 454; S. 46 - 52
Hauptverfasser: Stanley, Jessica N.G., Heinroth, Falk, Weber, Cameron C., Masters, Anthony F., Maschmeyer, Thomas
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Kidlington Elsevier B.V 15.03.2013
Elsevier
Schlagworte:
Alloy
Bimetals
Catalysis
Catalyst
Catalysts
Chemistry
Emission analysis
Exact sciences and technology
General and physical chemistry
Hydrogen storage
Hydrogenation
Inductively coupled plasma
Platinum
Ruthenium
Spectroscopy
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Toluene
Hydrogen storage
Ruthenium
Platinum
Toluene
Hydrogenation
Alloy
Catalyst
Mixed catalyst
Hydrocarbon
Hydrogen
Naphthalene(1,2,3,4-tetrahydro)
Alloys
Aluminosilicates
Transition metal
Supported catalyst
Heterogeneous catalysis
Storage
Bicyclic compound
Benzenic compound
Green chemistry
Platinoid
Environmental protection
ISSN:0926-860X, 1873-3875
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Zusammenfassung:[Display omitted] ► Alloy nanoparticles of Pt–Ru were synthesised. ► The complete catalyst synthesis was performed in air. ► Toluene was hydrogenated under ambient conditions and with no special precautions. ► The alloy with a molar ratio of 1 Pt to 1.5 Ru was much more active than either of the metals by themselves. ► The synergistic alloy may hold the key to a simple reversible hydrogen storage system, operating under mild conditions. To facilitate the drive towards ever lower energy, ‘greener’ processing, robust bimetallic aluminosilicate-supported Pt–Ru catalysts that can operate under atmospheric conditions have been developed for the rapid room temperature hydrogenation of aromatics (toluene and tetralin) at 1atm H2. The toluene/methylcyclohexane couple has the added interest of being a promising cyclic hydrocarbon combination for the storage of hydrogen. The easily handled air-stable catalysts were prepared using the incipient wetness method and characterised by ICP-AES, XRD, TEM as well as nitrogen sorption measurements. Compared to their monometallic counterparts, the bimetallic catalysts displayed significantly higher turn-over-frequencies (TOFs), consistent with a synergistic relationship between platinum and ruthenium.
Bibliographie:ObjectType-Article-2
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ISSN:0926-860X
1873-3875
DOI:10.1016/j.apcata.2013.01.002