Electrosynthesis of 4,4 '-dinitroazobenzene on PbO2 electrodes


Abaci S., Tamer U. , Pekmez K., Yildiz A.

JOURNAL OF APPLIED ELECTROCHEMISTRY, vol.32, no.2, pp.193-196, 2002 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 32 Issue: 2
  • Publication Date: 2002
  • Doi Number: 10.1023/a:1014721030568
  • Title of Journal : JOURNAL OF APPLIED ELECTROCHEMISTRY
  • Page Numbers: pp.193-196

Abstract

Parameters which affect the electrosynthesis of 4,4'-dinitroazobenzene from p-nitroaniline on platinum and PbO2 electrodes were investigated and optimum conditions were determined. Maximum conversion efficiency for electrosynthesis was 95% with a pure beta-PbO2 electrode. It was found that the electrocatalytic activity of a PbO2 electrode depends upon its alpha/beta ratio and its degree of crystallinity. The effects of the added base and water on the conversion efficiency were also elucidated.