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.

Авторы
Shpiro K.S.1 , Telegina N.S. 2 , Gryaznov V.M. 2 , Minachev Kh.M.1 , Rudny Yu.3
Редакторы
-
Журнал
Издательство
Baltzer Science Publishers, Baarn/Kluwer Academic Publishers
Номер выпуска
4
Язык
Английский
Страницы
375-382
Статус
Опубликовано
Подразделение
-
Номер
-
Том
12
Год
1992
Организации
  • 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
Ключевые слова
binary alloys; compositional oscillations; LEISS, AR XPS; surface segregation
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/1037/