ZnTa2O6 and ZnV2O6 nanomaterials were obtained by hydrothermal and co-precipitation synthesis methods. Optical measurements (UV-VIS) were realized for ZnTa2O6 and ZnV2O6 nanomaterials. Using the drop casting method sandwich structures of ZnTa2O6 and ZnV2O6 nanomaterials were deposited on steel electrodes. The morphological characteristics for the obtained layers were investigated before the electrochemical measurements by scanning electron microscopy and optical microscopy. Corrosion tests in NaCl 0.1M solution were performed for the deposited layers on steel electrodes and the tests revealed that the best results were obtained for the sandwich structures using hydrothermally obtained ZnTa2O6 as first layer and ZnTa2O6 obtained by the co-precipitation method as the second layer, i.e. 88.29% inhibition efficiency.Keywords: ZnTa2O6, ZnV2O6, electrochemical measurements, inhibition efficiency, anticorrosive properties
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