Why does the more positive potential, the current densities (CV and LSV) that I got more negative?

My sample is Ca2NaNb4O13 mixed with PEDOT:PSS and coated on ITO glass. For CV measurement, I used 0.1 M Na2SO4 as electrolyte, Pt as counter electrode and Ag/AgCl as reference electrode. For LSV...

07 February 2019 5,687 3 View