Chemisorption and reactivity of furan on Pd{111}

RM Ormerod, CJ Baddeley, C Hardacre, RM Lambert

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

XPS, HREELS, ARUPS and Delta phi data show that furan chemisorbs non-dissociatively on Pd{111} at 175 K, the molecular plane being significantly tilted with respect to the surface normal. Bonding involves both the oxygen lone pair and significant a interaction with the substrate. The degree of decomposition that accompanies molecular desorption is a strong function of coverage: similar to 40% of the adsorbate desorbs molecularly from the saturated monolayer. Decomposition occurs via decarbonylation to yield COa and H-a followed by desorption rate limited loss of H-2 and CO. It seems probable that an adsorbed C3H3 species formed during this process undergoes subsequent stepwise dehydrogenation ultimately yielding H-2 and C-a.

Original languageEnglish
Pages (from-to)1-9
Number of pages9
JournalSurface Science
Volume360
Issue number1-3
Publication statusPublished - 10 Jul 1996

Keywords

  • CATALYSTS
  • ORIENTATION
  • thermal desorption spectroscopy
  • ACETYLENE
  • photoelectron spectroscopy
  • PHOTOELECTRON-SPECTROSCOPY
  • ETHYLENE
  • X-ray photoelectron spectroscopy (XPS)
  • THIOPHENE
  • SURFACE
  • surface reaction
  • MOLECULES
  • electron energy loss spectroscopy
  • angle resolved ultraviolet photoemission spectroscopy (ARUPS) chemisorption
  • work function measurements
  • BENZENE
  • ADSORPTION

Cite this

Ormerod, RM., Baddeley, CJ., Hardacre, C., & Lambert, RM. (1996). Chemisorption and reactivity of furan on Pd{111}. Surface Science, 360(1-3), 1-9.