Activation of amorphous Cu-M (M = Ti, Zr or Hf) alloy powders made by mechanical alloying

Á Molnár, L. Domokos, T. Katona, T. Martinek, G. Mulas, G. Cocco, I. Bertóti, J. Szépvölgyi

Research output: Article

25 Citations (Scopus)

Abstract

Amorphous Cu-M alloy powders (Cu40Ti60, Cu50Zr50 and CU65Hf35) produced by mechanical alloying are activated by being applied as catalyst in the transformation of various alcohols at elevated temperature (523-573 K). During the dehydrogenation of 2-propanol to acetone and the transformations of allyl alcohol to form propanal and 1-propanol active, stable and selective catalysts are generated from Cu-Zr and Cu-Hf. DSC, XRD and XPS data indicate bulk crystallization and copper segregation to the surface. Due to surface titanium enrichment Cu-Ti proved to be inferior to the other two alloys.

Original languageEnglish
Pages (from-to)1074-1078
Number of pages5
JournalMaterials Science and Engineering A
Volume226-228
Publication statusPublished - jún. 15 1997

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ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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