Zinc Oxide Nanocomposites of Selected Polymers: Synthesis, Characterization, and Corrosion Inhibition Studies on Mild Steel in HCl Solution (original) (raw)
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Synthesis of zinc oxide nanoparticle as corrosion resistance of steel metal
THE 9TH INTERNATIONAL CONFERENCE OF THE INDONESIAN CHEMICAL SOCIETY ICICS 2021: Toward a Meaningful Society
Corrosion resistance is a material applied as iron or steel coating metal to avoid corrosion or rust. The addition of ZnO nanoparticles (ZnO-NP) in paint is functions as a protective coating of the steel metal from corrosion. The ZnO-NP was prepared by the reaction of Zn(CH3COO)2.2H2O with cetyltrimethylammonium bromide surfactant and NaOH. The paint composition as a coating material was ZnO-NP powder, epoxy, thinner, pigment, and solvent. XRD characterized ZnO-NP powder, and the performance of ZnO-NP coatings on corrosion was evaluated by linear sweep polarization. The first layer scheme produces the lowest corrosion current. The size of the ZnO-NP obtained was 23.29 nm. A thermodynamic study of corrosion of ZnO-NP had Gibbs energy at transition state (ΔG*) of 74.13 kJ mol-1 at 303 K. The kinetics study demonstrated that the activation energy (Ea) of ZnO-NP was higher than the blank. Based on these studies, ZnO-NP is shown to be potential material corrosion resistance of steel metal. Recently, the leading cause of industrial accidents has been the corrosion of tools used in production facilities. Usually, the industrial tools used are stainless steel which plays an essential role in human life. Mild steel is generally selected, which has good mechanical properties to prevent corrosion. Corrosion is a process that occurs when a metal interacts with its environment. The corrosion process can be slowed down by coating metal surfaces, cathodic protection, and adding corrosion inhibitors [1]. The method of prevention and protection against corrosion is by coating. The coating is the most commonly used method for dealing with corrosion. There are two types of coatings, i.e., liquid coatings and concrete coatings [2]. Liquid coating is the painting of steel surfaces to protect steel against corrosion. The adhesion, resistivity, mechanical and dielectric properties of a polymer or epoxy resin can protect steel from corrosion. Due to wear and abrasion of the surface, metal with an epoxy coating is easily degraded-the complex cross-linked structure of the epoxy-coated metal results in very weak corrosion resistance. Thus, to increase the protective properties of epoxy or paint, nano-sized fillers must be added. Nanoparticle materials are known for their outstanding physical and mechanical properties due to their extremely fine grain size and large grain boundary volumes. In recent years, bi-and tri-metal oxide nanocomposites have become a strong area of integrative research due to their broad technological objectives. Researchers have applied metal oxide nanoparticles to inhibit corrosion based on zinc, titanium, zircon, nickel, etc. This research evaluated zinc oxide nanoparticles (ZnO-NP) as a corrosion-resistant material. It is known that zinc oxide nanoparticle shows preferential antibacterial, antifungal, corrosion-resistant, and UV-resistant properties. Zinc oxide nanostructures have been considered for their antimicrobial effects against several foodborne pathogens and
Enhanced Corrosion Protection of Epoxy/ZnO-NiO Nanocomposite Coatings on Steel
Coatings, 2020
ZnO-NiO nanocomposite with epoxy coating on mild steel has been fabricated by the sol–gel assisted method. The synthesized sample was used to study corrosion protection. The analysis was performed by electrochemical impedance spectroscopy in 3.5% NaCl solution. The structural and morphological characterization of the metal oxide nanocomposite was carried out using XRD and SEM with Energy Dispersive Absorption X-ray (EDAX) analysis. XRD reveals the ZnO-NiO (hexagonal and cubic) structure with an average ZnO-NiO crystallite size of 26 nm. SEM/EDAX analysis of the ZnO-NiO nanocomposite confirms that the chemical composition of the samples consists of: Zn (8.96 ± 0.11 wt.%), Ni (10.53 ± 0.19 wt.%) and O (80.51 ± 3.12 wt.%). Electrochemical Impedance Spectroscopy (EIS) authenticated that the corrosion resistance has improved for the nanocomposites of ZnO-NiO coated along with epoxy on steel in comparison to that of the pure epoxy-coated steel.
Analyzing the Corrosion Behaviour of Cu doped ZnO Nanomaterials on Mild Steel in NaCl Solution
International Journal of Advanced Science and Engineering, 2022
The present work focuses on the synthesis of Pure and Copper doped Zinc oxide nanocomposites using the extraction of Ocimum sanctum. The nanocomposites were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray Diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), Energy Dispersive X-ray Analysis (EDAX). A methodical processing has been conducted on the result of Cu doped ZnO nanocomposite for the anticorrosion performance on the mild steel. The dimension of the proposed nanocomposites found to be 38 nm and was coated on mild steel in nickel bath solution. The corresponding anticorrosion on the coated mild steel was investigated in 3.5% NaCl solution by performing potentiodynamic polarization measurement and electrochemical impedance spectroscopy respectively. The surface morphology of the coated mild steel engrossed in corrosive solution was studied by SEM with EDAX. The Cu-ZnO nanocomposites coating has shown an ideal shield against corrosion and the defensive capability lye in the range of 95%. The prepared nanocomposites of Cu-ZnO nanocomposites have improved the process of mild steel in all corrosion media are subjected to further investigations in order to improve the quality of the composite for anticorrosion applications.
Synergistic effect of ZnO nanoparticles with organic compound as corrosion inhibition
International Journal of Low-Carbon Technologies
In chemical manufactures, the corrosion inhibitors were added in order to reduce the corrosion of mild steel. Chemical molecules are often used on mild steel surfaces as portion of the latest finishing steps before painting and/or storage. Here, this work elucidated the utilization of an isatin derivative, namely, 3-((3-acetylphenyl)imino)indolin-2-one synergistic with zinc oxide nanoparticles for improving the impedance of mild steel (MS) against corrosion in 1.0 M hydrochloric acid using the weight loss method and scanning electron microscopy (SEM). Weight loss measurements demonstrated that the best 3-((3-acetylphenyl)imino)indolin-2-one concentration was 0.5 mM and the inhibition efficiency was 83% whereas the inhibition efficiency was 92% with addition of ZnO NPs. 3-((3-Acetylphenyl)imino)indolin-2-one retards the corrosion process at 300 K and demonstrates low inhibition efficiencies at 310, 320 and 330 K.
Journal of Adhesion Science and Technology, 2016
A copolymer nanocomposite Poly(aniline-co-2,3-xylidine)/ZnO [Poly(AN-co-XY)/ZnO], pure copolymer and its homopolymers namely, Poly(aniline-co-2,3-xylidine) [Poly(AN-co-XY)], Polyaniline (PANi) and Poly (2,3-xylidine) were synthesized by chemical oxidative polymerization using ammonium persulfate as an oxidant in hydrochloric acid medium. The synthesized compounds were characterized by FTIR, XRD, SEM, and TEM techniques. Saturated solutions of the synthesized compounds were made in N-methyl-2pyrrolidone and casted on low-carbon steel specimens using 10% epoxy resin as a binder. The anticorrosion behavior of polymeric coatings was studied in 3.5 wt% NaCl solution at a temperature of 30 °C by electrochemical techniques, which include: open-circuit potential, potentiodynamic polarization and electrochemical impedance spectroscopy. Protective properties of nanocomposite coating were also evaluated at different immersion times for an extended period of 60 days. Anticorrosion properties of nanocomposite coating were compared with parent copolymer and individual homoplymers. SEM photomicrographs of the coated surface showed that Poly(AN-co-XY)/ZnO nanocomposite coating is crack free, uniform, and compact, whereas, copolymer and homopolymer coatings have surface defects. The performance of the polymer coatings followed the order: Poly(ANco-XY)/ZnO > Poly(AN-co-XY) > PANi > Poly(2,3-xylidine). The presence of ZnO nanoparticles in copolymer resulted in significant improvement in corrosion resistance and provided better barrier properties.
Journal of Advanced Materials and Processing, 2016
Received 17 February 2016 Accepted 25 March 2016 Available online 1 April 2016 In this study, ZnO nano particles were deposited on mild steel sheets from an acidic zinc bath. These particles were synthesized by using an auto combustion technique. The effect of concentration of ZnO nano particles on the corrosion behavior of depositions was investigated. The results of salt spray tests and electrochemical measurements showed that corrosion resistance is improved by addition of ZnO nano particles to the acidic zinc bath. Based on the results, the coating containing 0.5g of zinc oxide nanoparticles had the lowest corrosion rate (1.022mpy) and high corrosion resistance. Scanning electron microscopy (SEM) and Xray diffraction (XRD) were used for studying the surface morphology and crystal structure of the zinc deposit. SEM observations showed that zinc oxide nanoparticles acted as a barrier against corrosive environment by absorbing the corrosive agents. The XRD pattern showed that the a...
Investigation of Corrosion Resistance of poly(o-phenylenediamine)-ZnO Composites on Carbon Steel
2018
Synthesis of poly(o-phenylenediamine) (PoPD) and poly(o-phenylenediamine)-ZnO (PoPD-ZnO) nanocomposites on carbon steel by in-situ polymerization with HCl acid as doping acid Material coating. The composition and structure of PoPD-ZnO nanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The corrosion protection ability of polymer coatings in 3.5% NaCl was studied by potentiodynamic polarization curves and electrochemical impedance spectroscopy. It can be seen from the electrochemical corrosion experimental data that PoPD-WPU coating (PWC) and PoPD-ZnO-WPU coating (PZWC) can effectively improve the corrosion resistance of the carbon steel substrate, and the corrosion rate is reduced by 2-3 orders of magnitude compared with carbon steel. The conclusion demontrates that PoPD can effectively extend the service life of carbon steel substrates. In addition, it is advantageous to form a compact ...
Thin Solid Films, 2011
Poly(N-methyl pyrrole) (PMPy) coating was electrodeposited on steel substrates in mixed electrolytes of dodecyl benzene sulphonic acid with oxalic acid in the absence and the presence of ZnO nanoparticles (NPs). The morphology and compositions were characterized by Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy and Energy-dispersive X-ray spectroscopy. Electrode/ coating/electrolyte system was studied by Electrochemical Impedance Spectroscopy. The comparison between the pore resistance (R po ) of synthesized PMPy in the absence and presence of ZnO NPs indicated that the existence of ZnO increased the R po of the coating. The FESEM micrographs indicated that the size of micro-spherical grains in the morphology of PMPy is significantly reduced and the surface area of PMPy is increased with the presence of ZnO NPs. The increase of the ability to interact with the ions liberated during the corrosion reaction of steel and the increase of the rate probability for the occurrence of cathodic reduction of oxygen on the PMPy with the increase of the surface area can be considered as reasons for improvement of protective properties of synthesized PMPy in the presence of ZnO NPs.
Corrosion Resistance of Ni Electrodeposited Co Doped ZnO Nanocomposite Thin Films in NaCl Solution
International Journal of Advanced Science and Engineering, 2021
This work focuses on the atmosphere protected, ecological process by the combination of Cobalt doped Zinc oxide nanocomposites utilizing the extraction of Ocimum sanctum. The prepared nanocomposites are examined by unusual methods like Fourier transform infrared spectroscopy (FT-IR), X-ray Diffraction (XRD), Field emission scanning electron microscopy (FE-SEM), Energy Dispersive X-Ray Analysis (EDAX). A efficient study has been made on the result of Co doped ZnO nanocomposite for the anticorrosion behaviour of mild steel. The Co-ZnO nanocomposites of average diameter in the range 36 nm were coated on mild steel in nickel bath solution. The anticorrosion properties on the coated mild steel was carefully tested in 3.5% NaCl solution by performing potentiodynamic polarization measurement and electrochemical impedance spectroscopy. Surface morphology of the coated mild steel immersed in corrosive solution was judged by using SEM with EDAX. The Co-ZnO nanocomposites coating has shown a perfect protection against corrosion and the shielding capability is in the range of 95%. The incorporation of Co-ZnO nanocomposites has upgraded the process of mild steel in all corrosion media are subjected to the investigation.
Journal of colloid and interface science, 2016
Perfluorodecyltrichlorosilane-based poly(dimethylsiloxane)-ZnO (FDTS-based PDMS-ZnO) nanocomposite coating with anti-corrosion and anti-fouling capabilities has been prepared using a one-step fabrication technique. XPS analysis and contact angle measurements showed the fluorine content to increase, while the hydrophobicity of the coatings decreased with addition of FDTS. XRD analysis revealed existence of ZnO nanoparticles of dimensions ranging from 11.45 to 93.01nm on the surface of coatings, with the mean particle size decreasing with FDTS addition, and was confirmed by SEM and TEM observations. Interestingly, the anti-corrosion performance and mechanical properties of the coatings increased remarkably on addition of FDTS. Indeed, the observed low adhesion strength, surface energies and the outstanding anti-corrosive properties imply that the obtained coating would be useful in anti-fouling applications.