Electrochemical Study of Polymer and Ceramic-Based Nanocomposite Coatings for Corrosion Protection of Cast Iron Pipeline

Ammar, Ameen Uddin; Shahid, Muhammad; Ahmed, Muhammad Khitab; Khan, Muhammad Bilal; Khalid, Amir; Khan, Zulfiqar Ahmad

doi:10.3390/ma11030332

Cited by 43 publications

(17 citation statements)

References 18 publications

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“…Such a better corrosion performance was due to the lower population of observed pores in the ceramic nanocoating. In addition, polymeric nanocoating had higher capacitance and was able to store higher charge, which allowed faster degradation [140].…”

Section: Nanocoating and Its Role In Corrosion Preventionmentioning

confidence: 99%

A Review on the Corrosion Behaviour of Nanocoatings on Metallic Substrates

et al. 2019

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Growth in nanocoatings technology is moving towards implementing nanocoatings in many sectors of the industry due to their excellent abilities. Nanocoatings offer numerous advantages, including surface hardness, adhesive strength, long-term and/or high-temperature corrosion resistance, the enhancement of tribological properties, etc. In addition, nanocoatings can be applied in thinner and smoother thickness, which allows flexibility in equipment design, improved efficiency, lower fuel economy, lower carbon footprints, and lower maintenance and operating costs. Nanocoatings are utilised efficiently to reduce the effect of a corrosive environment. A nanocoating is a coating that either has constituents in the nanoscale, or is composed of layers that are less than 100 nm. The fine sizes of nanomaterials and the high density of their ground boundaries enable good adhesion and an excellent physical coverage of the coated surface. Yet, such fine properties might form active sites for corrosion attack. This paper reviews the corrosion behaviour of metallic, ceramic, and nanocomposite coatings on the surface of metallic substrates. It summarises the factors affecting the corrosion of these substrates, as well as the conditions where such coatings provided required protection.

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Section: Nanocoating and Its Role In Corrosion Preventionmentioning

confidence: 99%

A Review on the Corrosion Behaviour of Nanocoatings on Metallic Substrates

et al. 2019

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“…The terminal lug coated with 0.5 Cu/TiO 2 10 and 1 Cu/TiO 2 5 films have higher corrosion potential than those with 0.1 Cu/TiO 2 50 and bare TiO 2 , which is similar to the bare terminal lug as in Figure 7A. Generally, the higher potential than the corrosion potential can bring about the anti-corrosion enhancement [13]. It is worth mentioning that the potential shift to a higher value than the metal corrosion potential is proportional to the copper density in these films.…”

Section: Resultsmentioning

confidence: 53%

Enhancement of Photoelectrochemical Cathodic Protection of Copper in Marine Condition by Cu-Doped TiO2

2020

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Photochemical cathodic protection (PEC) efficiency was enhanced by doping TiO2 with Cu (Cu/TiO2) through impregnation and reduction under hydrogen. The Cu loading was vaired from 0.1 to 1.0 mol% (0.1 Cu/TiO2, 0.5 Cu/TiO2, 1 Cu/TiO2). Then, up to 50 wt% Cu/TiO2 was mixed with TiO2 to form nanocomposite films. The film photocurrent and photopotential were measured under 1 mW/cm2 UV irradiation. The Cu/TiO2 film with 10 wt% of 0.5 Cu/TiO2 exhibited the highest photocurrent of 29.0 mA/g, which was three times higher than the TiO2 film. The underlying reason for the high photocurrent was the lower photopotential of film than the corrosion potential of copper for PEC. This film was also applied on copper terminal lug for anti-corrosion measurement by Tafel polarization in 3.5 wt% NaCl solution. The results showed that the photopotential of terminal lug coated with the film was −0.252 V vs. Ag/AgCl, which was lower than the corrosion potential of copper (−0.222 V vs. Ag/AgCl). Furthermore, the film can protect the corrosion of copper in the dark with 86.7% lower corrosion current (icorr) than that of bare copper.

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“…Ameen Uddin Ammar et al [15] in their study selected two nanocomposite-based coatings: one polymeric based which is PVA/PANI/FLG and the other ceramic based which is TiO 2 /GO. Both coatings were applied on samples by using dip coating technique.…”

Section: Introductionmentioning

confidence: 99%

High-Performance Anticorrosive Polyester Coatings on Mild Steel in Mixed Acid Mixtures Environments

Ahmad

Yasir

et al. 2019

Advances in Polymer Technology

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Mild steel sample was selected from acid storage tanks used in industry as a substrate, and two advanced technological polymeric resin-based coatings were developed, designated as LAM-P resin based which is LAM-P/FR coating and LAM-V resin based which is LAM-V/FR coating. These coatings were applied over steel samples by using the hand lay-up process. FTIR test was conducted to confirm complete curing, and SEM analyses were used to investigate surface morphology. A series of electrochemical tests were performed in acidic environment (mixed acid solution 56% H2SO4 + 26% HNO3 + 18% H2O by weight). The results indicated successful development of LAM-P/FR and LAM-V/FR to obtain coatings with desirable characteristics such as anticorrosion, thickness, adhesion, stability, charge store and more resistance to acidic environments. EIS data for mixed acid storage media demonstrated that LAM-V/FR coating has higher strength in mixed acid solution, higher values of impedance and phase shift, higher value of Rpore, and low value of Cc; corrosion rate percentage reduction is 96% of LAM-P/FR and 99.96% of LAM-V/FR compared to bare mild steel sample. The outcomes of this study can lead to assist in design guidelines for anticorrosive coating for industrial applications.

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Electrochemical Study of Polymer and Ceramic-Based Nanocomposite Coatings for Corrosion Protection of Cast Iron Pipeline

Cited by 43 publications

References 18 publications

A Review on the Corrosion Behaviour of Nanocoatings on Metallic Substrates

A Review on the Corrosion Behaviour of Nanocoatings on Metallic Substrates

Enhancement of Photoelectrochemical Cathodic Protection of Copper in Marine Condition by Cu-Doped TiO2

High-Performance Anticorrosive Polyester Coatings on Mild Steel in Mixed Acid Mixtures Environments

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