Hydrogen evolution at platinum (Pt) and at platinized platinum (Ptz) cathodes


Yazici B.

TURKISH JOURNAL OF CHEMISTRY, vol.23, no.3, pp.301-308, 1999 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 3
  • Publication Date: 1999
  • Title of Journal : TURKISH JOURNAL OF CHEMISTRY
  • Page Numbers: pp.301-308

Abstract

In this study, the cathodic behaviours of bright platinum (Pt) and at platinized platinum (Ptz) on the platinum anode were investigated in a 1M Na2SO4 electrolyte (pH, from 2 to 8) by means of electrolysis. The theoretical (Delta Erev) and experimental (Delta E-exp) discharge potentials and the cathodic overpotentials (rlc) of the systems were determined. The amounts of hydrogen gas produced at different times on the cathodes at a constant potential (5V) were measured and the hydrogen yield was calculated. The resulting scheme has been very helpful to obtain wodified electrocatalytic coating and electrode structures at Ptz cathode, able to operate for long time with good and stable performances.