Decomposition of PF3 on Ni(755) and coadsorption with ethylcyclohexane: Comparing the results of PF3 with CO

Hideo Orita, Hiroshi Kondoh, Hisakazu Nozoye

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Temperature-programmed desorption spectra for exposure of PF3 on Ni(755) are characterized by two desorption features around 350 and 650 K. The lower temperature feature is assigned to the molecular desorption and the higher one to the recombinative desorption of PF3 fragments, respectively. The results suggest that the decomposition of PF3 occurs at the step sites but not on the terrace of Ni(755). Coadsorbed PF3 inhibits the decomposition of ethylcyclohexane almost completely and the inhibiting effect of PF3 is more effective than that of CO. We can obtain the same decomposition starting temperature (the temperature where an adsorbed hydrocarbon starts to decompose) of ethylcyclohexane by using the inhibiting effects of PF3 and CO.

Original languageEnglish
Pages (from-to)244-250
Number of pages7
JournalJournal of Catalysis
Issue number2
Publication statusPublished - 2001 Jan 1
Externally publishedYes



  • CO
  • Coadsorption
  • Decomposition
  • Ni(755)
  • PF
  • TPD

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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