Table 2: EAS and hydrogen adsorption charge results for different configurations of sputtered Pt.

Height of Pt sputtered (Å)Electrochemical active surface (EAS) Hydrogen adsorption charge Glass carbon area
EAS (cm2/g)Qhm (mC/cm2)Qhm1 (mC)S (cm2)

223.2 Å (0.05 mg/cm2)52.31760.54930.03880.0707
2*111.6 Å (0.05 mg/cm2)82.71370.86850.06140.0707
2*67 Å + 89.2 Å (0.05 mg/cm2)142.81641.49960.10590.0707