Hydrogen Evolution at Platinum (Pt) and at Platinized Platinum (Ptz) Cathodes

Authors : Birgül YAZICI

Pages : 301-308

View : 14 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In this study, the cathodic behaviours of bright platinum insert ignore into journalissuearticles values(Pt); and at platinized platinum insert ignore into journalissuearticles values(Ptz); on the platinum anode were investigated in a 1M Na2SO4 electrolyte insert ignore into journalissuearticles values(pH, from 2 to 8); by means of electrolysis. The theoretical insert ignore into journalissuearticles values(D Erev); and experimental insert ignore into journalissuearticles values(D Eexp); discharge potentials and the cathodic overpotentials insert ignore into journalissuearticles values(hc); of the systems were determined. The amounts of hydrogen gas produced at different times on the cathodes at a constant potential insert ignore into journalissuearticles values(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.
Keywords : Turk J Chem, 23, 1999, 301 308 Turk J Chem, vol 23, iss 3