Effect of counter electrode material on the anodic destruction of \+i\4-Cl\-i\ phenol solution

The electrochemical oxidation of solutions of 4-chlorophenol was studied using a dimensional stable anode (DSA). An electrochemical cell with one working electrode and two counter electrodes was used. Four counter electrodes (lead, zinc, brass and copper) were tested under different pH values (2.3,...

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Bibliographic Details
Published in:Process safety and environmental protection 1999-07, Vol.77 (B4), p.219-226
Main Authors: Azzam, M O, Tahboub, Y, Al-Tarazi, M
Format: Article
Language:English
Online Access:Get full text
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Summary:The electrochemical oxidation of solutions of 4-chlorophenol was studied using a dimensional stable anode (DSA). An electrochemical cell with one working electrode and two counter electrodes was used. Four counter electrodes (lead, zinc, brass and copper) were tested under different pH values (2.3, 7.0 and 12.6). Complete elimination was successfully achieved. The experimental results show a considerable influence of the counter electrode material on the rate of destruction. In addition, the pH affects the destruction rate versus the counter electrode material. At a pH of 12.6, the rate of destruction using copper was higher than when using lead, while at a pH of 2.3, this behaviour was reversed. Furthermore, at a pH of 7.0, all the tested counter electrode materials had almost the same performance. (Original abstract)
ISSN:0957-5820