Abstract
The hydrogen pressure equivalent to hydrogen overpotential on Pd electrode was determined under anodic polarization by combining the data of the electric resistance of a Pd foil electrode observed at various overpotentials with the electric resistance vs hydrogen pressure relationship which was obtained in a separate, gas phase experiment. The equivalent hydrogen pressure under anodic polarization was less diminished as compared with the value calculated by the Nernst equation from the total overpotential. Results are consistent with the conclusion reported previously for the cathodic region (Part I) that the Tafel—Volmer route is followed on the Pd hydrogen electrode with comparable value of the constituent step rates. Effect of addition to the solution of tetrabutylammonium hydroxide was also examined. Hydrogen content in Pd at the equilibrium hydrogen electrode potential under 1 atm hydrogen pressure was evaluated electrochemically to be H/Pd = 0.691. Hydrogen content in Pd under anodic polarization was evaluated.
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.
