Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
materials science
X-ray induced reduction effects at ceO
2
surfaces: An x-ray photoelectron spectroscopy study
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Volume 9, No. 3, Year 1991
Notification
URL copied to clipboard!
Description
XPS techniques are used to study the effects of Al Ka x-rays on the surface chemical composition of CeO2. We find that prolonged exposures cause the formation of some Ce3+oxidic species at the surface. We have studied the Ce 3p, Ce 3d, O Is, Ce 4p, Ce 4d, and valence band regions in an attempt to localize the depth of damage. Consideration of published formulations for electron attenuation lengths and electron inelastic mean free paths indicates that the chemical reduction occurs mainly in the first 15–20 A from the surface. Our results show that some of the XPS features, usually referred to as excited electronic states of ceria, are in fact induced by prolonged exposures to the x rays. © 1991, American Vacuum Society. All rights reserved.
Authors & Co-Authors
Paparazzo, E.
Italy, Montelibretti
Istituto Di Struttura Della Materia, Montellibreti
Ingo, Gabriel Maria
Italy, Monterotondo
Area Della Ricerca Di Roma
Zacchett, N.
Lesotho, Roma
Centro Sviluppo Materiali S.p. A.
Statistics
Citations: 216
Authors: 3
Affiliations: 3
Identifiers
Doi:
10.1116/1.577638
ISSN:
07342101
e-ISSN:
15208559