Determination of the adsorption energy distribution function of UPD hydrogen on monocrystalline platinum

Kowalczyk, P, Savard, S and Lasia, A 2004, 'Determination of the adsorption energy distribution function of UPD hydrogen on monocrystalline platinum', Journal of Electroanalytical Chemistry, vol. 574, no. 1, pp. 41-47.


Document type: Journal Article
Collection: Journal Articles

Title Determination of the adsorption energy distribution function of UPD hydrogen on monocrystalline platinum
Author(s) Kowalczyk, P
Savard, S
Lasia, A
Year 2004
Journal name Journal of Electroanalytical Chemistry
Volume number 574
Issue number 1
Start page 41
End page 47
Total pages 7
Publisher Elsevier S.A.
Abstract Hydrogen underpotential deposition (upd) on basal planes of platinum is a complex process. Hydrogen isotherms determined from cyclic voltammetric experiments were modeled using distribution functions. This problem leads to the Fredholm integral equation of the first kind. Hydrogen upd in HClO4 was modeled assuming a local Langmuir isotherm and the distribution function of the adsorption energies was determined. In H2SO4 the isotherms are much narrower so the local Frumkin isotherm was used and the distribution of the interaction parameter was determined. The distribution functions obtained were used to reconstruct the isotherms and a good agreement was obtained between recalculated and experimental isotherms. The proposed method gives good insight into the interactions of H-Pt.
Subject Electrochemistry
DOI - identifier 10.1016/j.jelechem.2004.07.025
Copyright notice © 2004 Elsevier B.V. All rights reserved.
ISSN 1572-6657
Versions
Version Filter Type
Altmetric details:
Access Statistics: 131 Abstract Views  -  Detailed Statistics
Created: Mon, 06 Dec 2010, 14:11:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us