Open AccessElectrophoresis Deposition of Tungsten oxide Nanoparticles for Corrosion Inhibition
Author(s) -
Taghried A. Salman,
Haider M. Raheem
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1664/1/012053
Subject(s) - tafel equation , electrophoretic deposition , materials science , nanoparticle , corrosion , scanning electron microscope , galvanization , chemical engineering , coating , oxide , tungsten , layer (electronics) , metallurgy , nuclear chemistry , composite material , nanotechnology , electrochemistry , chemistry , electrode , engineering
In the present research, electrophoretic deposition technique (EPD) was used to deposit tungsten oxide (WO 3 ) nanoparticles onto galvanized steel from a tungsten oxide ethanol suspension at various concentrations of (1.7×10 −2 , 2.5×10 −2 and 3.4×10 −2 M) for corrosion protection application. The (WO 3 ) nano coating was used as a barrier layer for the corrosion protection of galvanized steel in saline solution. (WO 3 ) nanoparticles were characterized by measuring the Fourier transform infrared spectroscopy, UV-Visible and X-ray diffraction techniques. The morphology of the (WO 3 ) nanoparticles was investigated using Scanning Electron Microscopy (SEM), and Atomic Force Microscopy (AFM). Results indicated that (WO 3 ) nanoparticles layer was efficiently deposited onto galvanized steel using (EPD), also, the deposited nanoparticles film was found to be homogenous and smooth. (EPD) and the partial reduction of the (WO 3 ) nanoparticles occurred simultaneously under the applied electrical fields. Moreover, the anti-corrosion performance of the (WO 3 ) nanoparticles –EPD layers was characterized using Tafel polarization method. Polarization studies identified the coated (WO 3 ) nanoparticles behave as a mixed type inhibitor. Protection efficiencies data were increased as the (WO 3 ) nanoparticles concentrations and temperature increased, indicating chemisorption protection mechanism.