Amorphous alloy catalysis. Part 1. Dehydrogenation of 2-propanol on amorphous Cu61Zr39 alloy precursors

Árpád Molnár, Tamás Katona, M. Bartók, Károly Varga

Research output: Contribution to journalArticle

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Abstract

The dehydrogenation of 2-propanol to acetone on Cu61Zr39 alloy has been studied for the first time. The dehydrogenation reaction (flow reactor, 573 K) on as-received or pre- activated (hydrogen, 573 K, 3 h or 473 K, 16 h) alloy brings about a continuous activation of the catalyst. Other types of pretreatment (heat treatment at 800 K for 0.5 h, or treatment with water vapour at 500 K for 24 h) induce an initially high, but unstable, activity. The activity changes parallel changes in the copper surface area (determined via N2O decomposition), except for samples prepared by HF dissolution, which results in a highly active and stable catalyst with a low surface area. XRD and DSC indicate crystallisation of the amorphous alloy samples under the given reaction conditions and as a result of pretreatment.

Original languageEnglish
Pages (from-to)41-51
Number of pages11
JournalJournal of Molecular Catalysis
Volume64
Issue number1
DOIs
Publication statusPublished - Jan 1 1991

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Amorphous alloys
Propanol
Dehydrogenation
Catalysis
Catalysts
Acetone
Water vapor
Dissolution
Crystallization
Chemical activation
Heat treatment
Decomposition
Copper
Hydrogen

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Amorphous alloy catalysis. Part 1. Dehydrogenation of 2-propanol on amorphous Cu61Zr39 alloy precursors. / Molnár, Árpád; Katona, Tamás; Bartók, M.; Varga, Károly.

In: Journal of Molecular Catalysis, Vol. 64, No. 1, 01.01.1991, p. 41-51.

Research output: Contribution to journalArticle

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