Synthesis, Electrochemical Characterization of Al2O3-CeO2 Mixed Oxide Nano Particles

Nano Al2O3-CeO2 mixed oxides were prepared by wet chemical method by mixing equimolar solutions of Aluminium sulphate (0.1M) and Cerium nitrate (0.1M) in aqueous Sodium hydroxide and refluxed at elevated temperature. The prepared nano Al2O3-CeO2 mixed oxides were characterized by UV-Vis, XRD, TEM and CV studies. From UV ?Visible spectra of Al2O3-CeO2 mixed metal oxide nano particles exhibited absorption at 302 nm and 348 nm. The blue shifted absorption peaks of simple and mixed metal oxide nano particles showed nano scale effect. From XRD studies the size of the nano Al2O3-CeO2 was found to be 1.7nm through Debye-Scherrer's formula. The size of synthesized nano particles were further confirmed by TEM and it was found to be 50nm. Cyclic Voltammetric studies exhibit good adherent behaviour on electrode surface and good electroactivity at pH 1.0.