Modification of catalytic activity of Cu-Ti amorphous alloy ribbons by cathodic hydrogen charging

M. Pisarek, M. Janik-Czachor, P. Kedzierzawski, Á Molnár, B. Rác, A. Szummer

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Since hydrogen is known to be one of the most efficient embrittling atomic species, cathodic hydrogen charging was used in an attempt to modify the structure, composition and morphology of Cu-Ti amorphous alloy ribbons. Various methods of analysis such as X-ray electron microanalysis, SEM, XRD and electrochemistry, with varying lateral resolution and different information depths, as well as catalytic tests, were used to follow the changes within the ribbons and at the surface, and their interrelations with catalytic activity. The activity in a test reaction (dehydrogenation of 2-propanol) was enhanced up to a conversion level of 66%, which is much higher than that obtained with all other pre-treatments previously applied.

Original languageEnglish
Pages (from-to)1379-1389
Number of pages11
JournalPolish Journal of Chemistry
Volume78
Issue number9
Publication statusPublished - Sep 1 2004

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Keywords

  • Amorphous alloys
  • Catalytic tests
  • Cu segregation
  • Cu-Ti
  • Devitrification
  • Hydrogen charging
  • SEM
  • X-ray microanalysis (WDS)
  • XRD

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Pisarek, M., Janik-Czachor, M., Kedzierzawski, P., Molnár, Á., Rác, B., & Szummer, A. (2004). Modification of catalytic activity of Cu-Ti amorphous alloy ribbons by cathodic hydrogen charging. Polish Journal of Chemistry, 78(9), 1379-1389.