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


Yazici B.

TURKISH JOURNAL OF CHEMISTRY, cilt.23, ss.301-308, 1999 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 23 Konu: 3
  • Basım Tarihi: 1999
  • Dergi Adı: TURKISH JOURNAL OF CHEMISTRY
  • Sayfa Sayıları: ss.301-308

Özet

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.