Abstract
The structural change and electrochemical behavior of a Pt(100) surface in contact with gas, Ar gas, and solution were investigated by cyclic voltammetry in solution and low-energy electron diffraction and scanning tunneling microscopy in ultrahigh vacuum (UHV). The clean and well-defined Pt(100)-hex-R0.7° surface prepared in UHV was transformed into Pt(100)- upon being exposed to gas, whereas the Pt(100)-hex-R0.7° structure remained unchanged when exposed to Ar gas. Electrochemical measurements on both Pt(100)-hex-R0.7° and Pt(100)- electrodes were carried out in 1 mM It was demonstrated that the reconstructed Pt(100)-hex-R0.7° surface was stable in 1 mM in the potential range more anodic than that for hydrogen adsorption. The structural transition from hex-R0.7° to was observed at cathodic potentials where hydrogen atoms are adsorbed on the Pt electrode surface. © 2002 The Electrochemical Society. All rights reserved.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.