Characterization of surface species on iron synthesis catalysts by X-ray photoelectron spectroscopy

C. S. Kuivila, J. B. Butt, Peter C Stair

Research output: Contribution to journalArticle

157 Citations (Scopus)

Abstract

X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES) have been used to characterize the surfaces of clean and oxidized iron foils, bulk iron oxide powders, and reduced and carbided iron foils and powders. Metallic, divalent, trivalent, and carbidic iron species were identified by their characteristic Fe(2p) XPS spectra, and spectra for mixed-valence surfaces were approximated by linear combinations of the spectra of the individual iron species. Results for iron carbides prepared from metallic iron indicated that surface carbides can also be identified by their characteristic iron Auger line shape. The results of this investigation show that the combination of XPS and AES can be used effectively for identification of the chemical states of iron on synthesis catalyst surfaces.

Original languageEnglish
Pages (from-to)99-121
Number of pages23
JournalApplied Surface Science
Volume32
Issue number1-2
DOIs
Publication statusPublished - 1988

Fingerprint

Iron
X ray photoelectron spectroscopy
photoelectron spectroscopy
iron
catalysts
Catalysts
synthesis
x rays
Auger electron spectroscopy
Powders
Metal foil
carbides
Auger spectroscopy
electron spectroscopy
Carbides
foils
Iron oxides
iron oxides
line shape
valence

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics

Cite this

Characterization of surface species on iron synthesis catalysts by X-ray photoelectron spectroscopy. / Kuivila, C. S.; Butt, J. B.; Stair, Peter C.

In: Applied Surface Science, Vol. 32, No. 1-2, 1988, p. 99-121.

Research output: Contribution to journalArticle

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