As a beginner in electrochemistry, I tried to obtain cyclic voltamograms of commercial anatase powder deposited on an ITO substrate or on Eteck. After several attempts, I noticed that my cyclic voltamograms of commercially purchased TiO2 powder deposited on ITO or Eteck did not differ from the CV obtained for the initial ITO or Eteck. Moreover, I cannot detect the reduction or oxidation peak of the Ti4+/Ti3+ couple. I have searched the literature for some CV graphs for initial ITO or Eteck substrates, but found none. Does anyone have such data?

Thank you in advance.

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