dc.contributor.author |
Rao, C N R
|
|
dc.contributor.author |
Vijayakrishnan, V
|
|
dc.contributor.author |
Kulkarni, G U
|
|
dc.contributor.author |
Rajumon, M K
|
|
dc.date.accessioned |
2012-12-03T10:51:41Z |
|
dc.date.available |
2012-12-03T10:51:41Z |
|
dc.date.issued |
1995-03 |
|
dc.identifier |
0169-4332 |
en_US |
dc.identifier.citation |
Applied Surface Science 84(3), 285-289 (1995) |
en_US |
dc.identifier.uri |
https://libjncir.jncasr.ac.in/xmlui/10572/1187 |
|
dc.description |
Restricted Access |
en_US |
dc.description.abstract |
The interaction of oxygen with Ni(100), (110) and (111) surfaces as well as with Ni clusters of varying sizes has been investigated by employing core-level spectroscopy. On single-crystal surfaces, the main oxygen species are O1− and O2− with characteristic O(1s) binding energies of 531 and 530 eV, the percentage of the former being ∼30. At relatively high oxygen exposures, Ni2+ and Ni3+ are found on these surfaces. On the surfaces of small clusters, O1− is the primary product (≥ 50%) and the proportion of the O2− species increases with the cluster size. The small clusters distinctly show that Ni2+ is formed first, followed by Ni3+ at higher exposures. A sequence of transformations occurring on Ni surfaces exposed to oxygen is suggested. |
en_US |
dc.description.uri |
http://dx.doi.org/10.1016/0169-4332(94)00548-6 |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Elsevier Science BV |
en_US |
dc.rights |
© 1995 Elsevier Science BV |
en_US |
dc.subject |
Metal-Clusters |
en_US |
dc.subject |
Spectroscopy |
en_US |
dc.subject |
Ni(100) |
en_US |
dc.subject |
Ni(110) |
en_US |
dc.subject |
Defects |
en_US |
dc.subject |
Oxide |
en_US |
dc.subject |
Xps |
en_US |
dc.subject |
Ag |
en_US |
dc.title |
A comparative study of the interaction of oxygen with clusters and single-crystal surfaces of nickel |
en_US |
dc.type |
Article |
en_US |