publication . Article . 2001

Lead dioxide electrodes for high potential anodic processes

Rossano Amadelli; Velichenko, A. B.;
Open Access
  • Published: 01 Dec 2001
Doping of PbO 2 by cations (Fe 3 + , Co 2 + and Ni 2 + ), by F- and by cations and F - simultaneously is discussed as a way of improving the stability and electrochemical activity in processes occurring at high potentials. Doping allows the control of the amount of structural water in an oxide. Radiotracer experiments showed that high electrodeposition current densities favour the segregation of incorporated tritium (protons) at the surface. On the other hand, fluorine doping results in a marked decrease in the amount of surface oxygen species. The influence of doping with metal cations strongly depends on the nature of the metal. Iron behaves like fluorine, whi...
free text keywords: lead dioxide anodes, doping, ozone electrogeneration, Chemistry, QD1-999, General Chemistry
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