【Abstract】 Electrodeposited PbO2/Ti doped with Bi,Ce,Cu or Sn with an intermediate layer was prepared.The electrochemical parameters in the oxidation process of Cr2(SO4)3 were determined by steady-state polarization curve.The current efficiency of Bi-doped,Ce-doped,Cu-doped,Sn-doped and undoped PbO2/Ti in the preparation of dichromic acid by electrooxidation of chromium sulfate were investigated.The result showed Ce-doped PbO2/Ti exhibited the best electrocatalytic activity in the undoped and doped PbO2/Ti mentioned above.更多还原