Abstract
Thermal desorption spectroscopy (TDS) and X-ray photoelectron spectroscopy (XPS) have been employed to study the adsorption of oxygen on electrolytic silver. In the pressure range of 1−10 −8 Torr, several kinds of oxygen species have been observed on the surface: (A) Adsorbed molecular oxygen ( E d = 101 kJ/mol, v = 4 × 10 11 s −1), (B) surface bound atomic oxygen ( E d = 134 kJ/mol, v = 4.7 × 10 13 s −1) and (C) sub-surface atomic oxygen. Results of XPS show that the binding energies of 1s orbitals of these species of oxygen on silver are 528.3, 529.7, 520.2 and 532.2 eV. Two bands centered at 2.8–3.0 and 9.0 eV below the Fermi level appear on the difference spectrum of the valence band which again indicates that both atomic and molecular oxygen exist on the surface of silver.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
