Paper Title:
Electrochemical Study of Hydrogen Electrode Reaction Kinetics on LmNi3.55Co0.75Mn0.4Al0.3 Alloy Electrode
  Abstract

The exchange current density and the peak current density of the hydrogen electrode reaction on LmNi3.55Co0.75Mn0.4Al0.3 alloy electrode in an aqueous 1M KOH solution, at low hydrogen contents (<0.1 H/M) and elevated temperatures (42-60°C), were studied using potentiostatic polarization techniques. Both measured quantities increased linearly with the increase in hydrogen content in the alloy. On the basis of the difference between the activation energy of the charge transfer and the hydrogen diffusion, it was concluded that the charge transfer reaction represented the rate-determining step of the hydrogen electrode reaction under applied experimental conditions. The decrease of each of these two activation energies with increasing hydrogen content was evidenced, which indicated the existence of other processes occurring in the electrode bulk accompanying the hydrogen diffusion.

  Info
Periodical
Edited by
Dragan P. Uskokovic, Slobodan K. Milonjic, Djan I. Rakovic
Pages
205-210
DOI
10.4028/www.scientific.net/MSF.494.205
Citation
N. Potkonjak, D. Sužnjević, B.R. Simonović, S. Mentus, "Electrochemical Study of Hydrogen Electrode Reaction Kinetics on LmNi3.55Co0.75Mn0.4Al0.3 Alloy Electrode ", Materials Science Forum, Vol. 494, pp. 205-210, 2005
Online since
September 2005
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Price
$32.00
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