Reactions of clean lithium surfaces with SO2, O2 and H2O; auger lineshape analysis and X-ray photoelectron spectroscopic analysis of the initial product layers

K. W. Nebesny, K. Zavadil, B. Burrow, Neal R Armstrong

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The reactions of clean lithium with gas phase oxidants such as SO2, O2 and H2O have been explored as a means of understanding the reactions that lithium undergoes in electrochemical environments. Auger electron spectra for sulfur and oxygen in the SO2 reaction indicated the presence of a lithium sulfide/lithium oxide layer as the product. XPS studies confirm this reaction sequence for SO2, and that complete oxidation occurs to the first monolayer by dissociative chemisorption of SO2 and O2 and H2O. Reaction with SO2 does not completely cease beyond the initial layer, and higher oxidation states of sulfur are formed on top of either the Li2S/Li2O layer (SO2) or on the Li2O layer (O2). Auger lineshapes of the reaction products of SO2, at partial pressures exceeding 10-3 Torr, up to atmospheric pressure, show a mixture of sulfur-oxyanion salts in the product layer.

Original languageEnglish (US)
Pages (from-to)292-297
Number of pages6
JournalSurface Science
Volume162
Issue number1-3
DOIs
StatePublished - Oct 3 1985

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Spectroscopic analysis
spectroscopic analysis
Photoelectrons
Lithium
Sulfur
photoelectrons
lithium
X rays
products
sulfur
Oxidation
x rays
Chemisorption
Reaction products
Oxidants
Partial pressure
Oxides
Atmospheric pressure
Monolayers
lithium oxides

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Reactions of clean lithium surfaces with SO2, O2 and H2O; auger lineshape analysis and X-ray photoelectron spectroscopic analysis of the initial product layers. / Nebesny, K. W.; Zavadil, K.; Burrow, B.; Armstrong, Neal R.

In: Surface Science, Vol. 162, No. 1-3, 03.10.1985, p. 292-297.

Research output: Contribution to journalArticle

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AB - The reactions of clean lithium with gas phase oxidants such as SO2, O2 and H2O have been explored as a means of understanding the reactions that lithium undergoes in electrochemical environments. Auger electron spectra for sulfur and oxygen in the SO2 reaction indicated the presence of a lithium sulfide/lithium oxide layer as the product. XPS studies confirm this reaction sequence for SO2, and that complete oxidation occurs to the first monolayer by dissociative chemisorption of SO2 and O2 and H2O. Reaction with SO2 does not completely cease beyond the initial layer, and higher oxidation states of sulfur are formed on top of either the Li2S/Li2O layer (SO2) or on the Li2O layer (O2). Auger lineshapes of the reaction products of SO2, at partial pressures exceeding 10-3 Torr, up to atmospheric pressure, show a mixture of sulfur-oxyanion salts in the product layer.

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