Surface chemistry of fluoroethanols: I. A FTIR study of the reaction of 2,2-difluoroethanol on Al2O3 surface

Julia Vaynberg, L. M. Ng

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

The adsorption and thermal decomposition of 2,2-difluoroethanol, CF 2H-CH2-OH, on a high-surface-area Al2O 3 surface were investigated by FTIR under high vacuum conditions. IR spectra have been collected in 4000-1000 cm-1 range and spectral assignments have been made. The spectral evidence indicated that CF 2H-CH2-OH decomposed to form fluorinated surface ethoxide at 250 K and at 400 K and higher temperatures, surface ethoxide decomposed further with the formation of surface acetate. Surface isolated hydroxyl groups participated in the adsorption/decomposition process. A reaction mechanism is proposed.

Original languageEnglish
Pages (from-to)175-187
Number of pages13
JournalSurface Science
Volume577
Issue number2-3
DOIs
StatePublished - 1 Mar 2005
Externally publishedYes

Keywords

  • Aluminum oxide
  • Catalysis
  • Fluorinated alcohols
  • Infrared absorption spectroscopy
  • Surface chemical reactions

Fingerprint

Dive into the research topics of 'Surface chemistry of fluoroethanols: I. A FTIR study of the reaction of 2,2-difluoroethanol on Al2O3 surface'. Together they form a unique fingerprint.

Cite this