What can be an alternative method for determining ECSA of Pt on a carbon paper electrode coated with 10% Pt/C?

I have tried H2 UPD and Cu UPD to no avail. The voltammograms do not show the required peaks on the desorption side to calculate the ECSA. The signal is quite weak to discern over the double layer...

03 August 2018 1,102 4 View