Tetrathiafulvalenes as catalysts for the reduction of oxygen in acid electrolytes

✍ Scribed by E. Fanghänel; G. Schukat; K. Wiesener; A. Fuhrmann

• Publisher: Elsevier Science
• Year: 1981
• Tongue: English
• Weight: 278 KB
• Volume: 6
• Category: Article
• ISSN: 0378-7753
• DOI: 10.1016/0378-7753(81)80024-9

✦ Synopsis

Tetrathiafulvalenes have been examined as metal-free electrocatalysts for the cathodic reduction of oxygen at monolayer carbon diffusion electrodes in sulphuric acid. The polarizability of the electrodes increases in the following order: conjugativelyconnectd polymeric tetrathiafulvalenes, catalyst-free electrodes, non-conjugatively-connected polymeric tetrathiafulvalenes, and monomeric tetrathiafulvalenes. Only electrodes that are covered by conjugatively polymeric tetrathiafulvalenes exhibit a better performance than the active carbon P 33 used as carrier; this fact is discussed in terms of the increased electronic catalyst conductivity.