Electrochemical properties of active carbon in acid and alkaline electrolytes

✍ Scribed by P. Żóltowski

• Book ID: 103899301
• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 652 KB
• Volume: 1
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(76)81006-3

✦ Synopsis

A comparative study of active carbon in 1 N H2SO4 and in 1 N KOH using chronovoltammetry and cyclic chronopotentiometry has been carried out. Chronovoltammetric curves of active carbon in both electrolytes are analogous with those of other forms of carbon. At potentials exceeding 0.8 V/reversible hydrogen electrode two oxidation processes probably take place on the carbon surface. One of them leads to the formation of oxygen containing redox surface groups on the carbon and the other to oxygen adsorbed on the surface in a form which can be reduced only at much lower potentials.