I have observed that my compound's current was 6 and 32(mA ) in GC and Ni foam, respectively. But the question raised is that GC surface area is 0.07 cm2 and Ni foam 1cm2, so the current density for GC result will be higher, which not accurate How to solve this? And reactivity of the compound will show higher in the case of GC as its surface area is lower. Comparison with the electrode geometrical area surface is correct?