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مهندسی خوردگی 2025, 15(1): 44-44 |
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Investigating the Simultaneous Effect of
Organic Corrosion Inhibitor and Mesoporous
Silica Nanoparticles on the Corrosion
Resistance of Electrogalvanized Steels. مهندسی خوردگی 2025; 15 (1) :44-44
URL: http://journal.ica.ir/article-1-245-en.html
URL: http://journal.ica.ir/article-1-245-en.html
Abstract: (1 Views)
The main objective of this study is to investigate the effect of co-deposition of mesoporous silica
nanoparticles and organic corrosion inhibitor on the corrosion resistance of electrogalvanized steels.
For co-deposition of zinc and mesoporous silica nanoparticles (Zn-MSN), different current densities
and concentrations of SiO2 nanoparticles have been tested. The optimum deposition conditions were
obtained at (235 mA/cm2) current density and (0.5 g/l) concentration of mesoporous silica
nanoparticles. The zinc metal acts as a sacrificial anode using cathodic protection and simultaneously
mesoporous silica nanoparticles act as a protective layer for the carbon steel substrate. In this study, the
electrogalvanization method has been used as an alternative to hot dip galvanization method in order
to reduce the coating thickness and solve the heat affected zone problem. Further increase in corrosion
resistance has been achieved due to the presence of mesoporous silica nanoparticles (MSN) and organic
corrosion inhibitor (MBT). In order to investigate the coating properties, FESEM scanning electron
microscopy, XRD X-ray diffraction, Fourier transform infrared spectroscopy (FTIR) and
electrochemical studies using electrochemical impedance and potentiodynamic polarization in 3.5 wt%
NaCl solution with and without of corrosion inhibitors were used. Since the silica nanoparticles in the
composite coating act as nucleation sites, the size of zinc crystals in the coating have been reduced and
the coating surface has been modified. The electrochemical measurements clearly show that the
corrosion resistance of the coating (Zn–0.5MSN–MBT) has been increased significantly in the presence
of high charge transfer resistance (1.847*105(Ωcm2)), silica nanoparticles (MSN) and organic
corrosion inhibitor (MBT).
nanoparticles and organic corrosion inhibitor on the corrosion resistance of electrogalvanized steels.
For co-deposition of zinc and mesoporous silica nanoparticles (Zn-MSN), different current densities
and concentrations of SiO2 nanoparticles have been tested. The optimum deposition conditions were
obtained at (235 mA/cm2) current density and (0.5 g/l) concentration of mesoporous silica
nanoparticles. The zinc metal acts as a sacrificial anode using cathodic protection and simultaneously
mesoporous silica nanoparticles act as a protective layer for the carbon steel substrate. In this study, the
electrogalvanization method has been used as an alternative to hot dip galvanization method in order
to reduce the coating thickness and solve the heat affected zone problem. Further increase in corrosion
resistance has been achieved due to the presence of mesoporous silica nanoparticles (MSN) and organic
corrosion inhibitor (MBT). In order to investigate the coating properties, FESEM scanning electron
microscopy, XRD X-ray diffraction, Fourier transform infrared spectroscopy (FTIR) and
electrochemical studies using electrochemical impedance and potentiodynamic polarization in 3.5 wt%
NaCl solution with and without of corrosion inhibitors were used. Since the silica nanoparticles in the
composite coating act as nucleation sites, the size of zinc crystals in the coating have been reduced and
the coating surface has been modified. The electrochemical measurements clearly show that the
corrosion resistance of the coating (Zn–0.5MSN–MBT) has been increased significantly in the presence
of high charge transfer resistance (1.847*105(Ωcm2)), silica nanoparticles (MSN) and organic
corrosion inhibitor (MBT).
Keywords: Electro galvanized, Co-deposition, Nanoparticles, Silica, Nanocomposite, Corrosion, Organic inhibitor
Type of Study: Research |
Subject:
General
Received: 2026/01/26 | Accepted: 2025/06/15 | Published: 2025/06/15
Received: 2026/01/26 | Accepted: 2025/06/15 | Published: 2025/06/15
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