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Photoemission studies of oxygen adsorbed on a LiAl(110) alloy surface: Role of Li segregation
- Issue Date
- May-2006
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- APPLIED SURFACE SCIENCE, v.252, pp 5116 - 5123
- Pages
- 8
- Journal Title
- APPLIED SURFACE SCIENCE
- Volume
- 252
- Start Page
- 5116
- End Page
- 5123
- ISSN
- 0169-4332
1873-5584
- Abstract
- We investigated that the effect of the number of segregated Li atoms on the rate of oxidation on a LiAl alloy surface. Oxygen molecules adsorbed on the LiAl alloy react with the surface atoms to form stable oxides. The segregated Li atoms at reconstructed surfaces (c(2 x 2) and (2 x 1)) enhance the oxidation rate and form stable LiAlO, and Li2O. The degree of enhancement of oxidation by segregated Li atoms varies as a function Of 02 exposure and annealing temperature, where the latter is directly related to the mode of surface reconstruction by Li segregation. (c) 2005 Elsevier B.V. All rights reserved.
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