Study of the Behavior of Titanium Alloys as the Cathode for Photovoltaic Hydrogen Production

Table 3

Process designations and the associated parameters for cathode potential monitoring.

Designations	Parameters
O	β solution treated specimens ground by emery paper to 1000 mesh
S	Ground specimens cathodic charged in 1 N H2SO4(aq) at 5 A/cm^2 for 15 h
A	Ground specimens cathodic charged in 1 N H2SO4(aq) + 0.005 M As2O3 at 5 A/cm^2 for 15 h
T	Ground specimens cathodic charged in 1 N H2SO4(aq) + 0.01 M thiourea at 5 A/cm^2for 15 h