Oscillations of surface composition in Pt-Co alloys induced by CO chemisorption

The influence of carbon monoxide adsorption on surface composition of cobalt alloys, containing 30 and 1 at.% platinum was studied by low energy ion scattering spectroscopy and X-ray photoelectron spectroscopy. Composition oscillations in Co/Pt ratio across the several outermost layers and caused by CO chemisorbed at 400 K were found. XPS indicated the presence of both molecular and dissociatively adsorbed CO. A possible explanation of the surface process which cause these oscillations is proposed. © 1992 J.C. Baltzer A.G. Scientific Publishing Company.

Authors
Shpiro K.S.1 , Telegina N.S. 2 , Gryaznov V.M. 2 , Minachev Kh.M.1 , Rudny Yu.3
Journal
Catalysis Letters
Publisher
Baltzer Science Publishers, Baarn/Kluwer Academic Publishers
Number of issue
4
Language
English
Pages
375-382
Status
Published
Link
External link
DOI
10.1007/BF00765067
Volume
12
Year
1992
Organizations
  • 1 N. D. Zelinsky Institute of Organic Chemistry, USSR Academy of Sciences, Moscow, Russia
  • 2 Peoples' Friendship University, Moscow, Russia
  • 3 Institute of Low Temperatures and Structure Investigation, Wroclav, Poland
Keywords
binary alloys; compositional oscillations; LEISS, AR XPS; surface segregation
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/1037/
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