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The electrolysis of an acidic NaCl solution with a graphite anode—III. Mechanism of chlorine evolution

✍ Scribed by L.J.J. Janssen; J.G. Hoogland

Book ID
107748445
Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
823 KB
Volume
15
Category
Article
ISSN
0013-4686

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Electrolysis of an acidic NaCl solution
Electrolysis of an acidic NaCl solution with a graphite anode—IV. Chlorine evolution at a graphite electrode after switching off current
✍ L.J.J. Janssen; J.G. Hoogland 📂 Article 📅 1970 🏛 Elsevier Science 🌐 English ⚖ 672 KB

During electrolysis of an acid chloride solution, atomic chlorine is taken up by a graphite anode. After switching off the current the evolution of molecular chlorine continues. This phenomenon we call residual gas evolution (r.g.e.) It is established that the molecular chlorine is formed according

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✍ L.J.J. Janssen; J.G. Hoogland 📂 Article 📅 1969 🏛 Elsevier Science 🌐 English ⚖ 744 KB

A graphite anode evolving chlorine from a chloride solution is slowly oxidized to CO and CO,. This oxidation causes a change in the characteristics of the electrode-an ageing, comprising a change of the nature of the graphite surface and an increase of the surface area. It appears that a new graphi

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The results given in Part I of this series are analysed quantitatively. From the resistance change of a platinum film electrode during cathodic and anodic polarization in lo-' N sulphuric acid solutions, the following results emerge. (1) The rate constant and activation energy of the desorptive co