Synthesis and application of Zn-doped polyaniline modified multi-walled carbon nanotubes as stimuli-responsive nanocarrier in the epoxy matrix for achieving excellent barrier-self-healing corrosion protection potency

Najmi, Parisa; Keshmiri, Navid; Ramezanzadeh, Mohammad; Ramezanzadeh, Bahram

doi:10.1016/j.cej.2021.128637

Cited by 96 publications

(48 citation statements)

References 89 publications

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“…Design and fabrication of an organic coating with significant active/self-healing performance require selfhealing materials such as corrosion inhibitors encapsulated micro/nanostructures. 21 On-demand release of active/selfhealing agents such as corrosion inhibitors under certain stimuli such as pH, UV emission, temperature, and stress can block active corroding zones of the metallic surfaces, prolonging the lifetime of the coating. 15,21 MXenes, a newly discovered family of graphene-like twodimensional (2D) nanomaterial, can be synthesized by selective removal of A atoms from its counterpart MAX phases.…”

Section: Introductionmentioning

confidence: 99%

“…21 On-demand release of active/selfhealing agents such as corrosion inhibitors under certain stimuli such as pH, UV emission, temperature, and stress can block active corroding zones of the metallic surfaces, prolonging the lifetime of the coating. 15,21 MXenes, a newly discovered family of graphene-like twodimensional (2D) nanomaterial, can be synthesized by selective removal of A atoms from its counterpart MAX phases. 22 The general formula for MXenes could be denoted as M n+1 X n T x (n = 1, 2, or 3), where M, X, and T x are an early transition metal, carbide, and/or nitride element, and the surface terminations (OH, O, and/or F) come from the fluoride-containing etching solutions, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…Nanofillers such as SiO 2 , ZrO 2 , CNT, polyaniline nanoparticles, ZnO, the graphene family, carbon nanospheres, − and clay have been used in different coatings to improve mechanical, chemical, and barrier properties of polymer matrix due to their significant features, including large specific surface area and decent interactions with polymer matrix. , However, in most cases, short-term corrosion inhibitive properties with no active/self-healing performance can be achieved. Design and fabrication of an organic coating with significant active/self-healing performance require self-healing materials such as corrosion inhibitors encapsulated micro/nanostructures . On-demand release of active/self-healing agents such as corrosion inhibitors under certain stimuli such as pH, UV emission, temperature, and stress can block active corroding zones of the metallic surfaces, prolonging the lifetime of the coating. , …”

Section: Introductionmentioning

confidence: 99%

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Amino-Functionalized MXene Nanosheets Doped with Ce(III) as Potent Nanocontainers toward Self-Healing Epoxy Nanocomposite Coating for Corrosion Protection of Mild Steel

Haddadi

Ghaderi

et al. 2021

ACS Appl. Mater. Interfaces

138

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MXene sheets, as new 2D nanomaterials, have been used in many advanced applications due to their superior thin-layered architecture, as well as their capability to be employed as novel nanocontainers for advanced applications. In this research, intercalated Ti 3 C 2 MXene sheets were synthesized through an etching method, and then they were modified with 3aminopropyltriethoxysilane (APTES). Cerium cations (Ce 3+ ) as an eco-friendly corrosion inhibitor were encapsulated within Ti 3 C 2 MXene sheets to fabricate novel self-healing epoxy nanocomposite coatings. The corrosion protection performance (CPP) of Ce 3+ -doped Ti 3 C 2 MXene nanosheets (Ti 3 C 2 MXene-Ce 3+ ) in a 3.5 wt % sodium chloride (NaCl) solution was studied on bare mild steel substrates using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization measurements. The self-healing CPP of epoxy coatings loaded with 1 wt % undoped and doped Ti 3 C 2 MXene was evaluated using EIS, salt spray, and field emission scanning electron microscopy (FE-SEM) techniques. The introduction of Ti 3 C 2 MXene-Ce 3+ into the corrosive solution and artificially scribed epoxy coating enhanced the total impedance from 717 to 6596 Ω cm 2 and 8876 to 32092 Ω cm 2 , respectively, after 24 h of immersion compared to the control samples.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Amino-Functionalized MXene Nanosheets Doped with Ce(III) as Potent Nanocontainers toward Self-Healing Epoxy Nanocomposite Coating for Corrosion Protection of Mild Steel

Haddadi

Ghaderi

et al. 2021

ACS Appl. Mater. Interfaces

138

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“…Of note, the diameter of CNF–PDA–La nanofibers was more uniformly distributed. This finding might be attributed to the electrostatic repulsion of La 3+ doped on PDA chains, which inhibited PDA chain relaxation and caused an increase in the thickness of the PDA film on CNFs. , On the other hand, the presence of 5.59 wt % La confirmed that La 3+ were successfully doped on the surface of CNF–PDA nanofibers. Further morphological evaluation of the synthesized CNFs was performed using high-resolution STEM coupled with EDS.…”

Section: Resultsmentioning

confidence: 97%

pH-Sensitive Polydopamine–La (III) Complex Decorated on Carbon Nanofiber toward On-Demand Release Functioning of Epoxy Anti-Corrosion Coating

et al. 2022

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The high aspect ratio and unique thermal and electrical characteristics of carbon nanofiber (CNF) made it an ideal physical barrier against the penetration of corrosive ions. However, the poor compatibility of the CNF with the polymer matrix and the lack of active corrosion inhibitors are the key limitations of this nanomaterial, resulting in short-term anti-corrosion resistance. An intelligent self-healing epoxy (EP) coating, including CNF modified with a polydopamine (PDA)−La 3+ complex, was successfully fabricated to overcome these issues. Electrochemical impedance spectroscopy (EIS) evaluation implied that mild steel (MS) submerged in a 3.5 wt % NaCl solution containing the CNF− PDA−La extract had a total corrosion resistance (R T ) of 3107 Ω cm 2 after 24 h, which is much greater than the MS immersed in the blank solution (1378 Ω cm 2 ). Furthermore, the potentiodynamic polarization analysis indicated a 50% reduction in the corrosion rate (CR) of the MS soaked in the solution containing released PDA and La 3+ inhibitors compared to the blank solution. EIS and salt spray analysis were used to assess the self-healing capabilities of epoxy coatings incorporating modified CNFs. EIS assessment of scratched coatings revealed a 117% improvement in R T of the CNF−PDA−La/EP coating compared to the Blank/EP after 10 h of immersion in the saline solution. This enhancement is due to the intelligent release of PDA and La 3+ inhibitors at the scratch sites, which can mitigate MS corrosion by forming a PDA−Fe complex and the deposition of La(OH) 3 on the MS surface. The salt spray test results also exhibited the CNF−PDA−La/EP coating's superior anti-corrosion capabilities after 20 days. Hence, this research presents a logical approach for developing anti-corrosion coatings with improved nanofiller compatibility and self-healing characteristics.

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“…To overcome these issues, micro- or nanoparticles encapsulating or bearing inhibitors were embedded in coatings. − For instance, the inhibitor 2-mercaptobenzothiazole was adsorbed on CeO 2 nanoparticles followed by the adsorption of poly(acrylic acid) . Epoxy coatings containing the nanoparticles provided a coating resistance more than 8000 times larger than pure epoxy coatings.…”

Section: Introductionmentioning

confidence: 99%

Design of Nanostructured Protective Coatings with a Sensing Function

Salaluk

Jiang

Viyanit

et al. 2021

ACS Appl. Mater. Interfaces

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Nanostructured multilayered coatings for metals are prepared to simultaneously provide a function of corrosion mitigation and of corrosion sensing for copper substrates. Silica nanocapsules, embedded in one layer of the coating, are used as a host for a corrosion inhibitor and as a sensor, which detect changes of pH value and release inhibitors via an optical signal. Furthermore, another layer in the coating exists in a nanonetwork loaded with another corrosion inhibitor, which is impregnated with a hydrophobic polymer. We demonstrate that a specific arrangement of layers leads to an optimum anticorrosion and sensing performance while the sensing signal can be prolonged for a long time. It is the first time that the fluorophore detecting corrosion is conjugated to the nanosensor and that nanofibers and nanocapsules are used simultaneously to load and release corrosion inhibitors for anticorrosion applications.

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Synthesis and application of Zn-doped polyaniline modified multi-walled carbon nanotubes as stimuli-responsive nanocarrier in the epoxy matrix for achieving excellent barrier-self-healing corrosion protection potency

Cited by 96 publications

References 89 publications

Amino-Functionalized MXene Nanosheets Doped with Ce(III) as Potent Nanocontainers toward Self-Healing Epoxy Nanocomposite Coating for Corrosion Protection of Mild Steel

Amino-Functionalized MXene Nanosheets Doped with Ce(III) as Potent Nanocontainers toward Self-Healing Epoxy Nanocomposite Coating for Corrosion Protection of Mild Steel

pH-Sensitive Polydopamine–La (III) Complex Decorated on Carbon Nanofiber toward On-Demand Release Functioning of Epoxy Anti-Corrosion Coating

Design of Nanostructured Protective Coatings with a Sensing Function

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