Influence of Electrolyte Hydrodynamics on Current Yield in Ferrate(VI) Production by Anodic Iron Dissolution

[img]PDF - Authorized users only
Language: English
76Kb
Title:Influence of Electrolyte Hydrodynamics on Current Yield in Ferrate(VI) Production by Anodic Iron Dissolution
Creators:
Bouzek, Karel
Schmidt, Martin J.
Wragg, Anthony A.
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 65, 1, pp. 133-140
Uncontrolled Keywords:Current efficiency, Mass transfer, Iron oxidation, Ferrates, Gas evolution, Electrochemistry

Abstract

The dependence of current efficiency for ferrate(VI) synthesis on the superimposed electrolyte flow rate was determined using 14 M NaOH solution and a white cast iron electrode. The electrolyte mean velocity in the cell ranged from 0.4 to 2.9 cm s<sup>-1</sup> and current density from 1.4 to 35.3 mA cm<sup>-2</sup>. It was found that current efficiency was influenced by electrolyte velocity only at current densities lower than 7 mA cm<sup>-2</sup>. This is explained in terms of the removal of intermediate products from the anode surface by the electrolyte convection. This factor becomes negligible at higher current densities in comparison to mass transfer induced by oxygen evolution on the anode surface. <p>

Title:Influence of Electrolyte Hydrodynamics on Current Yield in Ferrate(VI) Production by Anodic Iron Dissolution
Creators:
Bouzek, Karel
Schmidt, Martin J.
Wragg, Anthony A.
Uncontrolled Keywords:Current efficiency, Mass transfer, Iron oxidation, Ferrates, Gas evolution, Electrochemistry
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:65
Number:1
Page Range:pp. 133-140
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc20000133UNSPECIFIED
ID Code:1630
Item Type:Article
Deposited On:06 Feb 2009 17:11
Last Modified:06 Feb 2009 16:11

Citation

Bouzek, Karel; Schmidt, Martin J.; Wragg, Anthony A. (2000) Influence of Electrolyte Hydrodynamics on Current Yield in Ferrate(VI) Production by Anodic Iron Dissolution. Collection of Czechoslovak Chemical Communications, 65 (1). pp. 133-140. ISSN 0010-0765

Repository Staff Only: item control page