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 | |
| 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
The coadsorption of sodium and oxygen on Ag(100) : an XPS, UPS and HREELS study. / Garfunkel, Eric; Ding, Xummin; Dong, Guosheng; Yang, Shu; Hou, Xiaoyuan; Wang, Xun.
In: Surface Science, Vol. 164, No. 2-3, 02.12.1985, p. 511-525.Research output: Contribution to journal › Article
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TY - JOUR
T1 - The coadsorption of sodium and oxygen on Ag(100)
T2 - an XPS, UPS and HREELS study
AU - Garfunkel, Eric
AU - Ding, Xummin
AU - Dong, Guosheng
AU - Yang, Shu
AU - Hou, Xiaoyuan
AU - Wang, Xun
PY - 1985/12/2
Y1 - 1985/12/2
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0000203364&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000203364&partnerID=8YFLogxK
U2 - 10.1016/0039-6028(85)90763-0
DO - 10.1016/0039-6028(85)90763-0
M3 - Article
VL - 164
SP - 511
EP - 525
JO - Surface Science
JF - Surface Science
SN - 0039-6028
IS - 2-3
ER -