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ANTICORROSIVE PROPERTIES OF ZNTA2O6 AND ZNV2O6 NANOMATERIALS - DEPOSITED AS SANDWICH STRUCTURES BY DROP CASTING METHOD - IN NACL

1 BIRDEANU Mihaela
Co-authors:
1,2 BIRDEANU Aurel - Valentin 1 VAIDA Mirela 1 ORHA Corina 3 FAGADAR-COSMA Eugenia
Institutions:
1 National Institute for Research and Development in Electrochemistry and Condensed Matter, Plautius Andronescu Street, 300224 Timisoara, Romania, EU
2 National R&D Institute for Welding and Material Testing – ISIM Timişoara, 20 M. Viteazu Ave., 300222 Timisoara, Romania, EU
3 Institute of Chemistry Timisoara of the Romanian Academy, 24 M. Viteazu Ave., 300223 Timisoara, Romania, EU, mihaelabirdeanu@gmail.com
Conference:
9th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 18th - 20th 2017
Proceedings:
Proceedings 9th International Conference on Nanomaterials - Research & Application
Pages:
359-365
ISBN:
978-80-87294-81-9
ISSN:
2694-930X
Published:
8th March 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

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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