The coadsorption of sodium and oxygen on Ag(100): an XPS, UPS and HREELS study

Eric Garfunkel; Xummin Ding; Guosheng Dong; Shu Yang; Xiaoyuan Hou; Xun Wang

doi:10.1016/0039-6028(85)90763-0

The coadsorption of sodium and oxygen on Ag(100): an XPS, UPS and HREELS study

Eric Garfunkel, Xummin Ding, Guosheng Dong, Shu Yang, Xiaoyuan Hou, Xun Wang

Rutgers University

Research output: Contribution to journal › Article

59 Citations (Scopus)

Abstract

The coadsorption of oxygen and sodium on the Ag(100) surface has been studied by UPS, XPS and HREELS. Pure sodium adlayers are found to be ionic at low coverages, and a work function decrease of 2.4 eV is measured at high coverage. Oxygen readily adsorbs on sodium-covered surfaces, and is accompanied by an increase in the work function of up to 0.8 eV. XPS data reveal the presence of at least two different oxygen species in the coadsorption system. HREELS results show that one of the states present at room temperature is molecularly adsorbed oxygen, as evidenced by the appearance of a loss peak at 77 meV.

Original language	English
Pages (from-to)	511-525
Number of pages	15
Journal	Surface Science
Volume	164
Issue number	2-3
DOIs	https://doi.org/10.1016/0039-6028(85)90763-0
Publication status	Published - Dec 2 1985

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ASJC Scopus subject areas

Physical and Theoretical Chemistry
Condensed Matter Physics
Surfaces and Interfaces

Cite this

Garfunkel, E., Ding, X., Dong, G., Yang, S., Hou, X., & Wang, X. (1985). The coadsorption of sodium and oxygen on Ag(100): an XPS, UPS and HREELS study. Surface Science, 164(2-3), 511-525. https://doi.org/10.1016/0039-6028(85)90763-0

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10.1016/0039-6028(85)90763-0