LOW TEMPERATURE OXIDATION KINETICS OF ANODIC FILMS ON LEAD IN SULFURIC ACID SOLUTION

Authors
  1. Valeriote, E.M.L.
  2. Gallop, L.D.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
A multiphase model of anodic films on lead in sulfuric acid, previously developed to describe the oxidation of lead at room temperature, has been applied to potentiostatic transient data at very low temperatures (0 to -50C). Freezing of the dilute pore electrolyte is proposed, such that ionic diffusion and equilibria must occur in a thin layer of adsorbed water between the ice and pore walls. The experimentally determined activation energies and entropies of diffusion indicate that desorption of water or dehydration of ions plays an important role in the activation process.
Report Number
742 —
Date of publication
01 Jan 1977
Number of Pages
8
Reprinted from
J of the Electrochemical Society, vol 124, no 3, 1977, p 380-387
DSTKIM No
77-02297
CANDIS No
102626
Format(s):
Hardcopy;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: