Electrofluorination of Hexafluorobutanol in Anhydrous Hydrofluoric Acid

Quasi on Line Mass Spectrometry and X-Ray Photoelectron Spectroscopy Studies

George G. Totir, Gary S. Chottiner, Christopher L. Gross, Daniel Alberto Scherson

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Certain aspects of the electrochemical fluorination (ECF) of hexafluorobutanol (HFB) in anhydrous HF (AHF) on Ni electrodes have been examined by mass spectrometry (MS) and X-ray photoelectron spectroscopy (XPS). Measurements were performed using a portable ultrahigh vacuum compatible chamber that allows for the transfer and characterization of specimens without exposure to the ambient atmosphere. Quasi on line MS analysis of the gases released during ECF of HFB/AHF solutions revealed features attributable to perfluorobutyryl fluoride [PBF = CF3CF2CF2C(O)F] with no evidence of the presence of other reaction products. Ex situ XPS analysis of Ni electrodes following ECF yielded spectra consistent with the formation ot a rather thick, irregular layer of NiF2 of average thickness of about 150-200 monolayers. with small contributions due to O (6%) and C (7%) localized primarily in the surface region.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume148
Issue number6
DOIs
Publication statusPublished - 2001 Jun 1
Externally publishedYes

Fingerprint

Hydrofluoric Acid
Fluorination
Hydrofluoric acid
fluorination
hydrofluoric acid
Mass spectrometry
mass spectroscopy
X ray photoelectron spectroscopy
photoelectron spectroscopy
Electrochemical electrodes
x rays
electrodes
Ultrahigh vacuum
Fluorides
Reaction products
reaction products
ultrahigh vacuum
fluorides
Monolayers
chambers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Electrochemistry
  • Materials Chemistry

Cite this

Electrofluorination of Hexafluorobutanol in Anhydrous Hydrofluoric Acid : Quasi on Line Mass Spectrometry and X-Ray Photoelectron Spectroscopy Studies. / Totir, George G.; Chottiner, Gary S.; Gross, Christopher L.; Scherson, Daniel Alberto.

In: Journal of the Electrochemical Society, Vol. 148, No. 6, 01.06.2001.

Research output: Contribution to journalArticle

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