Corrosion-Resistant Coatings for Solar Cells

A photovoltaic device with improved stability and service life, comprising a first electrode layer, a light absorbing layer, and a second electrode layer stacked in sequence, wherein at least one side of the second electrode layer is provided with a protective layer containing a corrosion inhibitor that includes a combination of imidazoline quaternary ammonium salt, phytic acid, tributylamine octanoate, and derivatives thereof.

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Abstract: Material selection is crucial in concentrated solar power technology due to the significant impact of high-temperature corrosion. The Ni-Al coating on the steel is an effective approach to corrosion resistance. The alterations in microstructure, hardness, toughness, adhesion and corrosion inhibition properties of Ni-Al coatings were examined across varying Al concentrations after oxidation processes. Cracks appeared on the surface of coatings with pre-oxidation Al content ranging from 9.9 at.% to 23.3 at.%, and no continuous Al2O3 oxide film was formed. Notably, as the Al content rose to 41.0 at.%, and a continuous -Al2O3 oxide film was successfully formed. It showed the best toughness and elastic modulus (181.6 GPa), and relatively high coating hardness (8.0 GPa). The corrosion results show that when the Al content is 41.0 at.%, the corrosion resistance of high-temperature molten chloride salt is the best. The oxidation layer formed by the pre-oxidation has a blocking effect on the migration of elements from the molten salt into the coatings. The results provide a route t... Read More

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An anti-corrosion profile for metal components, comprising a substrate with an alloy plating layer and an anti-corrosion coating arranged in sequence. The anti-corrosion coating includes a primer layer and a top layer, both containing at least 5% of 2-5 layers of graphene. The graphene enhances the anti-corrosion performance and adhesion of the coating, while also improving its impact resistance. The profile is suitable for use in various metal components, including frames, brackets, and photovoltaic systems.

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Abstract Solar energy as a clean, renewable energy source is perceived as a potential remedy to the environmental and climate degradation caused by fossil fuels. However, the surface contamination severely diminishes the photovoltaic conversion efficiency of solar cells. Liquid-repellent coatings that combine transparency and durability could be candidates for self-cleaning application of solar cells. Herein, a smooth liquid-repellent coating (SLRC) was developed by synergizing organosilicon and fluorine and was cured at room temperature. Owing to the low-surface-energy groups and flexible chains enriched on the SLRC surface, as well as cross-linking reactions and functional additives within the SLRC matrix, it exhibited liquid-repellency and UV-shielding properties. Moreover, SLRC could be applied to solar cells by spraying methods and displayed efficient self-cleaning properties. Finally, the adhesion strength and durability of SLRC were also verified, confirming that it had great potential for application in solar cells, opening the avenue for the development of self-cleaning coat... Read More

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This chapter describes the current trends of super-hydrophobic surfaces for corrosion resistance and their applications in coatings. The adversative outcome of corrosion is a widespread and serious problem resulting in the wastage of valuable resources, efficiency reduction, products, contamination, and environmental damage. Inspired by nature, super-hydrophobic surfaces may become a second source for the improvement of metal protection from corrosion. Super-hydrophobic surfaces offer great resistance to corrosion by minimizing the contact area between liquids and a surface. Super-hydrophobic surfaces have been developed artificially and are being applied in settings applications which include anti-icing, self-cleaning, oil-water separation, and particularly anti-corrosion agents.

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Solar cells with improved chemical resistance against contaminants, particularly sodium ions, through the incorporation of an aluminium oxide barrier layer deposited via atomic layer deposition. The barrier layer is capable of reducing contaminant penetration and maintaining solar cell efficiency under damp heat conditions.

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A solar module with improved long-term performance, comprising a protective layer applied to the metallization of the solar cells and/or cell connectors. The protective layer prevents corrosion of the metallization by encapsulation material decomposition products, thereby enhancing the module's resistance to moisture penetration and maintaining its electrical integrity over time.

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This book chapter offers a comprehensive overview of anticorrosive coatings, focusing on various types, their protective mechanisms, and their applications in corrosion protection. For centuries, corrosion of engineering metals and alloys has been an extensive and expensive problem, affecting several industries, such as infrastructure, transportation, and manufacturing. Anticorrosive coatings play a vital role in mitigating corrosion damage by providing a protective barrier between the metal substrate and the corrosive environment. The chapter begins with the introduction of significant corrosion variants and their characteristics, with the importance of anticorrosion coatings. Further delves into an in-depth exploration of different types of anticorrosive coatings based on functionality and compositions with detailed studies on barrier, inhibitive, sacrificial, hybrid, and functional coatings. Each coating type is discussed in terms of its composition, corrosion protection mechanisms, and applications. The chapter highlights the advancement in anticorrosive coatings, such as self-he... Read More

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Corrosion-resistant coatings with self-healing capabilities are still a great challenge for metal protection. In this study, a corrosion-resistant coating with intrinsic self-healing capabilities was developed by compounding hydroxy-terminated silicone oil (HTSO) with 2-ureido-4[1

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The purpose of this report is to compare the coating structure and corrosion mechanism of newly developed Zn-19%Al-6Mg-Si with conventional Zn-Al-Mg alloy coating Zn-11%Al-3%Mg-0.2%Si. In past papers the corrosion resistance of Zn-Al-Mg alloy coating layers was mainly discussed based on analysis methods that focus on one aspect of early corrosion stage. However, this report focuses on the changes in the corrosion mechanism until the end of the coating lifespan and picks up the factors of the coating layer that contribute to corrosion resistance.

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In recent years, with the development of productivity, the update and iteration of anti-corrosion technology is also advancing rapidly. The innovations of anti-corrosion materials, anti-corrosion technologies, and anti-corrosion mechanisms are emerging in an endless stream. They use different ways to make anti-corrosion stronger, more convenient, and more environmentally friendly. This review summarizes the new discoveries in the field of anti-corrosion in recent years according to different characteristics. These include traditional coatings and corrosion inhibitors that apply new materials; adding nanofillers to the gaps in the coating to prepare new multifunctional coatings; obtaining super-hydrophobic surfaces after special treatment of the coating surface; and discovering the corrosion inhibition effect of bacterial biofilms, and even anti-corrosion coatings suitable for UV preparation. In addition to introducing and analyzing their anti-corrosion methods, the characteristics and application fields of various methods are briefly evaluated. Finally, based on the current developme... Read More

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A method for preparing thin-film solar cells with improved stability, comprising a two-step process for generating an inorganic salt barrier layer. The first step involves reacting a perovskite material with an oxygen-free salt in a solvent to form an oxygen-free inorganic salt, which is then placed in an oxidizing environment to form a dense oxygen-containing inorganic salt barrier layer. The barrier layer prevents anion diffusion between the perovskite material and metal electrodes, enhancing cell stability.

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A backsheet for solar cell modules that prevents partial discharge voltage drop by inserting a barrier coating layer between base layers. The backsheet comprises a first base film layer, a second base film layer, an adhesive layer, and a top coating layer, with the barrier coating layer positioned between the base layers to prevent direct exposure to the outside environment. The barrier coating layer is formed using a sol-gel method and comprises a metal oxide sol, such as alumina, titania, or magnesia. The backsheet provides excellent moisture permeability resistance and secures a sufficient partial discharge voltage.

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A solar cell assembly with improved stability against environmental degradation, comprising a perovskite solar cell encapsulated between glass layers sealed with epoxy, wherein the external surfaces of the assembly are coated with a thin layer of tetrahedral amorphous carbon (ta-C) having a thickness of 1-50 nm. The ta-C coating enhances the barrier properties of the assembly against moisture and oxygen ingress, thereby extending the lifespan of the solar cell.

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Abstract Currently, singlelayer antireflection coated (SLARC) solar glass has a dominant market share of 95% compared to glass with other coatings or no coating, for Si PV modules. This antireflection coating (ARC) results in an efficiency gain of 23%. However, there are issues with these SLARCs: (1) solar cell warming due to increased subbandgap light absorption (by +0.4 ~ 1.2 K), counteracting the cell current gain and accelerating the aging of the solar panels, and (2) poor durability due to the coating's porous structure (typically lasting 5 years). This paper aims to develop a nonporous multilayer coating (MLC) that is more durable and will act as a spectrally selective filter for solar modules. Studies have been conducted on MLCs in terms of optical, microstructure, mechanical, and durability properties compared with commercial singlelayer AR coatings. The MLCs showed superior performance in durability and benefit in reducing parasitic heat absorption in the nonusable wavelength range. Also, a technoeconomic analysis model based on the multifunctional coating specifical... Read More

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In this article, the electrochemical corrosion of fullarea aluminum backsurface field (AlBSF) and bifacial passivated emitter and rear cell (PERC) crystalline silicon (cSi) solar cells subjected to different potential in sodium chloride (NaCl) solution is systematically investigated. Based on different potentialinduced corrosion, the electrochemical corrosion mechanism of cSi solar cells is revealed for the first time. Under zero potential, an important finding is that the silicon beneath silver electrode is corroded and perforated for AlBSF cells. This phenomenon is attributed to the interaction between hydroxide ions from galvanic corrosion and electrons from silicon corrosion. For bifacial PERC cells, the pyramidal structure of silicon surface beneath the aluminum finger is observed at zero potential, which is similar to the silicon texturing etched in alkaline environment. Additionally, it is found that silicon corrosion is inhibited when positive or negative potential is applied to the back of AlBSF and bifacial PERC cells. Moreover, it is observed the aluminum suffers f... Read More

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Recent trends in research and development focus more on the application of polymers to address corrosion problems in petroleum refineries and chemical industries. CPs are widely used as corrosion mitigators due to their conducting nature, resistance to corrosive environments, excellent stability, and thermal properties. Among all CPs, PANi has the promising capability to enhance the service life of industrial structures as a corrosion inhibitor in the corrosive media and as an additive in the organic coating. Various CP-based composites for anti-corrosion applications are critically reviewed in the present article. The present review article focuses on the corrosion inhibition mechanism of CPs and CP-based coating formulations in addition to recent advances in CP-based coatings.

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Material selection is crucial in concentrated solar power (CSP) technology due to the significant impact of high-temperature corrosion. Ni-Al coating on the heat resistant steels is an effective approach to the corrosion. The microstructure, hardness, toughness, adhesion, and corrosion resistance of Ni-Al coatings with different Al content were investigated following pre-oxidation treatment. Cracks appeared on the surface of coatings with pre-oxidation Al content ranging from 9.9 at.% to 23.3 at.%, and no continuous Al2O3 oxide film was formed. Notably, when the Al content increased to 41.0 at.% during pre-oxidation, and a continuous -Al2O3 oxide film was successfully formed. It showed the best toughness and elastic modulus (181.6 GPa), and relatively high coating hardness (8.0 GPa). The corrosion results show that when the Al content is 41.0 at.%, the corrosion resistance of high-temperature chloride molten salt is the best. The oxidation layer formed by the pre-oxidation has a blocking effect on the diffusion of molten salt elements into the coatings. High strength and toughness a... Read More

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Abstract The titanium oxide particles additives were used to improve the corrosion resistance of the galvanized coating at 0.1, 0.2, and 0.3 wt. %. Then, the corrosion behavior, mechanical and physical properties of coating were determined using the electrochemical, hardness, bending, roughness, thickness, porosity, SEM, FESEM, and XRD. The results were revealed the reducing of current density of corrosion and increasing the polarization resistance. Furthermore. the reducing of grain size of galvanized coating was observed. As a result, the best result was achieved by adding the 0.3 wt. % of nano particles titanium oxide additive. But the addition of titanium oxide with micro size of particles has a negative effect on the corrosion resistance.

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Corrosion is a pervasive and costly issue with significant economic and environmental implications.Corrosion protection coatings play a vital role in safeguarding various industries against the detrimental effects of corrosion.This comprehensive review provides an overview of recent advances in corrosion protection coatings, focusing on organic, inorganic, and metallic coatings.The fundamentals of corrosion protection coatings are discussed, including the mechanisms by which these coatings provide protection against corrosion.The review highlights recent advancements in organic coatings, such as the development of novel formulations, self-healing coatings, and the utilization of nanotechnology.Furthermore, the progress in inorganic and ceramic coatings, including surface modification techniques and the integration of organic-inorganic hybrid coatings, is explored.Additionally, the paper presents emerging trends in metallic coatings, covering alloy design, environmentally friendly options, and surface engineering techniques.Evaluation methods for coating performance and testing, inclu... Read More

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The electrodeposition of zinc coatings is one of the most common surface treatments for providing corrosion resistance to metallic components. From the thermodynamic point of view, zinc is located in a sweet spot, with its reduction potential being lower than most other common metals, while at the same time being not too susceptible to atmospheric corrosion; overall these features make zinc the ideal candidate for the electroplating of sacrificial coatings for corrosion protection. Owing it to its low cost and scalability, zinc electroplating has cemented itself as a cornerstone process in a variety of industrial sectors in the last decades. [1] While zinc coatings corrosion resistance has proved to be satisfactory in most cases, it could still be improved to operate even in more aggressive environments. For this purpose, electrodeposition of zinc alloys with transition metals from the iron group (Ni, Co, Fe) has proven to be a successful method to enhance zinc coatings corrosion resistance. In particular, zinc-nickel alloys have found the greater success among them, due to improved ... Read More

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Corrosion problems are widespread in nature. As one of the most convenient and efficient methods for metal anticorrosion protection, anticorrosive coatings have received increasing attention. With the continuous advancement of science and technology, more novel functional anticorrosion coatings are being extensively researched. This review provides an overview of recent research progress in anticorrosion coatings and functionalized modified materials. Recent methods for performance optimization can be categorized into three main sections: modification by nanoparticles, modification by carbon-based materials, and specific functionalization (barrier effect, passivation, shielding effect, resistivity, self-repair). Through modification, the anticorrosion performance of coatings is significantly enhanced, with impedance levels improving by up to three orders of magnitude. Furthermore, modification imparts additional outstanding features to the coatings, such as high-temperature resistance, thermal conductivity, self-healing, and hydrophobicity. Finally, the future development trend of an... Read More

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Corrosion poses a significant challenge as it makes the metallic component susceptible to damage, leading to both economic losses and environmental hazards for Mother Nature. It is an electrochemical reaction that occurs due to interaction of metal with the environment when affected by the pH, temperature, pressure, etc. Corrosion is a destructive and continuous problem and is a challenging problem for the entire world. Complete eradication would be impractical and impossible but prevention is more practical and feasible. To overcome this problem, thin film coating is used. A thin film coating known as an anti-corrosive thin film coating is applied to the surface of metal to prevent corrosion. Coating of the surface, also known as a passivation layer, is a traditional technique for preventing corrosion. This book chapter provides an overview of corrosion and various types of thin film coating.

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Corrosion is the process through which a metal deteriorates as a result of chemical reactions with its surroundings. Corrosion inhibitors are a highly efficient method of preventing corrosion on metal surfaces. New studies are focusing on how to make coatings more effective toward corrosion. One cutting-edge method involves chemically bonding the surfaces of modified fillers in order to increase the better dispersion of coating used and the surface of the material on which coating is applied. In this regard, the surfaces of the filler are activated and modified by grafting a variety of functional groups in order to make them active. Surfaces with coating material matrices that include modified compounds as fillers improved their adherence to metal and increased the various properties like thermal, anticorrosion, etc. of the various coating materials, which used to shield metals from corrosive environments. This was accomplished by improving the adhesion of the modified compounds to the metallic surfaces. Therefore, in this article anti-corrosion coatings are first described in detail... Read More

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This paper presents a comprehensive review of recent advancements in surface engineering of metals, encompassing techniques, characterization methods and applications. The study emphasizes the significance of surface engineering in enhancing the performance and functionality of metallic materials in various industries. The paper discusses the different techniques employed in surface engineering, including physical techniques such as thermal spray coatings and chemical techniques such as electroplating. It also explores characterization methods used to assess the microstructural, topographical, and mechanical properties of engineered surfaces. Furthermore, the paper highlights recent advancements in the field, focusing on nanostructured coatings, surface modification for corrosion protection, biomedical applications, and energy-related surface functionalization. It discusses the improved mechanical and tribological properties of nanostructured coatings, as well as the development of corrosion-resistant coatings and bioactive surface treatments for medical implants. The applications of... Read More

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A review on ceramics, glasses and glassceramics as thin film protective coatings for solar cells is given. The different preparation techniques and the physical and chemical properties are presented in a comparative way. This study is useful for technologies involving solar cells and solar panel cell development at the industrial scale, because protective coatings and encapsulation play a major role in increasing the lifetime of solar panels and environmental protection. The aim of this review article is to give a summary of existing ceramic, glass, and glassceramic protective coatings and how they apply to solar cell technology: silicon, organic or perovskite cells. Moreover, some of these ceramic, glass or glassceramic layers were found to have dual functionality, such as providing anti-reflectivity or scratch resistance to give a two-fold improvement to the lifetime and efficiency of the solar cell.

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In this chapter, we would like to discuss polymer coating's know-how, which is a method of modifying surface qualities in order to satisfy operating requirements in a number of technological applications. In addition to adhesion and barrier capabilities, polymer coatings have also been used to improve scratch and abrasion resistance, solvent resistance, wettability, noncytotoxicity, and other features. For the manufacture of protective organic coatings a number of different techniques have been devised and used. A careful selection of polymer, coating process, and manufacturing conditions can result in high-performance coatings with improved attributes when applied correctly. Polymer coatings have recently been shown to be effective and widely used in a variety of applications, including solar cells, batteries, separation techniques, diodes, corrosion defense, packaging, and heathcare applications.

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Nanostructured materials in surface coatings can improve the target materials' electrical, mechanical, decomposing, and wear-resistant qualities. Surface coating technology could be used in various disciplines, including energy, antireflective, anti-wear, self-healing and self-cleaning coatings, biological applications, and superhydrophobic coatings. Surface coating technology is mostly used to boost the antireflective qualities of solar cell panels. Coating materials mostly include carbides, oxides, borides, and nitrides. However, when cost and processing techniques are taken into account the polymer coating is found to be more advantageous than other methods. Because of the requirements for lightweight, high strength, corrosion resistance, and cost-efficiency, polymer-based nanomaterial surface coatings are recommended. However, the thermal characteristics of polymer surface coatings must be considered in all applications to assure functionality. This chapter discusses the origins of surface coatings, the polymers used in surface coatings, and the evolution of surface coatings depe... Read More

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This chapter aims to cover precisely the applicability of anticorrosion coatings in corrosion control methods. Although protective coatings do not offer much in the way of structural support, they do shield other materials so that they can maintain their strength and integrity. The primary purpose of a protective coating is to shield corrosive structural elements from the environment. Any flaw in a coating might serve as a focal point for the substrate's deterioration and corrosion, so it must provide a continuous barrier to the substrate. In addition to the materials' composition, other elements affect the coating's quality. For a coating to be effective against corrosion, it must have several characteristics, including a high level of adhesion to the substrate, a minimal amount of coating discontinuity (porosity), high resistance to the flow of electrons, a sufficient thickness (the more significant the thickness, the more excellent the resistance), and a slow rate of diffusion for ions like Cl and H2O.

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In recent years, perovskite solar cells (PSCs) have been considered as one of the most promising photovoltaic technologies due to their solution processing, cost effectiveness, and excellent performance. The highest certified power conversion efficiency (PCE) achieved to date is 25.8%, which is approaching the best PCE of 26.81% achieved for silicon-based cells. However, perovskite materials are susceptible to various aging stressors, such as humidity, oxygen, temperature, and electrical bias, which hinder the industrialization of perovskite photovoltaic technologies. In this review, we discuss the lifetime of PSCs from the perspective of corrosion science. On one hand, benefiting from a series of anti-corrosion strategies (passivation, surface coating, machining etc.) used in corrosion science, the stability of perovskite devices is remarkably enhanced; on the other hand, given that perovskites are soft crystal lattices, which are different from traditional metals, the revealed degradation processes and specific methods to improve device operation stability can be applied to the fie... Read More

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The results of a study of the resistance of protective coatings of three compositions to atmospheric corrosion in a humid tropical climate (SR Vietnam) are presented. The process of the biological fouling of coatings in the natural conditions of the South China Sea is studied. Coatings based on cycloaliphatic epoxy resin modified with epoxy rubber with fillers (mica-muscovite, TiO2) are chosen as the objects of research. To improve the anticorrosion and antifouling properties of the coatings, a triethanolamine complex with cobalt(II) cinnamate, which has a pronounced antimicrobial activity, is introduced into their composition.

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Preparing dense coatings with both good corrosion resistance and antibacterial properties on the Mg alloys surfaces using conventional surface treatment methods is difficult. In this study, we used a solution containing Cu2+ and phosphate to seal a plasma electrolyte oxidation (PEO) coated AZ91D Mg alloy. After the treatment, a formed dense deposition layer significantly improved the corrosion resistance of the PEO-coated alloy. At the same time, the release of Cu2+ conferred excellent antibacterial properties on the Mg surface. The chemical and physical models for the sealing reaction and corrosion processes were established, providing a theoretical basis for future studies.

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The abuse of toxic substances and organic solvents in metal corrosion protection seriously threatens human health, environment, and ecosystem. It is an inevitable tendency to replace the harmful materials with biodegradable materials in future anti-corrosion technologies. Poly(vinyl alcohol) (PVA) is a polyhydroxy water-soluble biodegradable polymer with excellent film-forming property, adhesive property, emulsifiability, spinnability and biocompatibility, which can be used as a good candidate material towards greening of metal corrosion protection. In this review, the multifunctional applications of PVA in the fields of metal corrosion protection were systematically summarized, including corrosion inhibitor, chemical conversion coating, anticorrosion coating, nanofiller, microcapsule, and nanofiber mat. To conclude, PVA has been successfully used to fabricate individual inhibitors and composite inhibitors for different types of metals. The special molecular structure of PVA endows it with unique interfacial compatibility in chemical conversion coating, anti-corrosion coating, and na... Read More

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Nanofiller composite coatings with synergistic properties for long-term corrosion protection of metals. In this work, a new composite waterborne polyurethane coating with both self-healing and active corrosion protection was developed for the corrosion protection of carbon steel. The composite coating demonstrated remarkable long-term corrosion resistance thanks to the labyrinth effect of MMT and the synergistic action of corrosion inhibitors Ce3+ and TA. The impedance modulus was still above 108 cm2 after 50 days of immersion, which was nearly three orders of magnitude higher than that of the pure PU coating. Moreover, the self-healing experiments confirmed that the physical damage was effectively repaired after heat treatment, which was attributed to the disulfide bond exchange reaction. Importantly, the healed coating also exhibited durable corrosion resistance. This kind of double functional anti-corrosive coating shows great potential in the field of long-term anti-corrosion.

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Corrosion protection is one of the utmost aims for the reduction of maintenance costs with higher production for the industry. The conventional toxic chromate-based coating is an environmental concern, which has led researchers to develop an organic-based coating with higher anticorrosive performance. The incorporation of nanocomposite increases the adhesion capability of the coating to the metal surface leading to protecting the metal from corrosion. Nanocomposites have novel mechanical and electrochemical properties. The type of nanocomposites depends on the type of nanostructured filler. The performance of nanocomposite coating depends on the types of nanoparticles and additives, the concentration of the dispersed particles, and the mixing processes. In this chapter, nanocellulose-based nanocomposites, their synthesis, and performance against corrosion protection have been discussed. The potential of these nanocomposites as corrosion inhibitors has been pointed out as well.

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The cover glass of the solar panel benefits greatly from the antireflection cum photocatalytic with durable superhydrophilic (SHF) coating on float glass, which is here referred to as solar cover glass (SCG). In this study, such coatings were coated as a single layer on SCG as a replacement for the glass that covers solar cells, and their performance was compared to that of the bare texture solar cover glass (TSCG) which available in market. Using the solgel dip-coating method, coatings were created from stable sol utilizing titanium (IV) isopropoxide (TTIP), zirconium (IV) oxychloride octahydrate (ZOC), and block co-polymer P123 (surfactant), then dried at 80 C/2 h and heated for at 400 C/h. The coatings were deposited on glass with dimensions of 150 mm 150 mm and had a thickness of 186 10 nm. They had a refractive index value of 1.42950.002 and water contact angle (WCA) of 5 6. These coatings were found to be homogeneous and had good adhesion and pencil hardness 4H. The coatings' hardness and elastic modulus were also measured using the nano-indentation method with an o... Read More

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A luminum and its alloys, known for low density and high tensile strength, are widely used in marine equipment but prone to corrosion. This study aims to enhance their corrosion resistance by developing cerium-modified hydrophobic Pb-Co coatings through one-step electrodeposition. Adjusting the cerium to cobalt ion ratio optimized the coatings for superior resistance to wetting and corrosion. The research investigates physicochemical properties, wetting behavior, adhesion strength, and corrosion performance of these coatings on aluminum. Mechanisms of deposition and corrosion resistance are explained through experimental results, analytical insights, and DFT calculations, advancing our comprehension of corrosion protection in cerium-modified Pb-Co coatings.

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The development of innovative coatings with advanced multifunctional properties can lead the way to a more sustainable future. During the last decade, the global use of solar energy has been accelerating while there is a growing need for more energy-efficient buildings. Recent research efforts have focused on developing smart coatings that can rectify and amplify the role of protective glass surfaces which are mainly used in photovoltaic panels and in building windows. These surfaces suffer from the deposition of dirt, which compromises the power output of photovoltaic panels and stains the building facades. The application of novel self-cleaning, antifouling coatings on these surfaces can offer a proactive solution. Many research groups have suggested the use of antireflective coatings that can improve the transparency of glass, as well. Furthermore, the concept of radiative cooling coatings has been gaining attention as a method to lower the operating temperature of solar panels and to improve the temperature management of indoor spaces. In recent years, many hybrid polymer-based c... Read More

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This Special Issue aims to include the latest research findings on the corrosion phenomena that occur in various materials, both solid and coating materials [...].

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Metal degradation due to corrosion is a major challenge in most industries, and its control and prevention has to maintain a balance between efficiency and cost-effectiveness. The rising concern over environmental damage has greatly influenced this domain, as corrosion prevention should comply with the waste regulations of different regions. In this respect, a fundamental question is which modern synthetic materials are more viable from the point of view of their effectiveness. Therefore, this paper is aims to provide an advanced and holistic review of corrosion prevention and control methods. Corrosion prevention techniques have become extensive; however, the literature indicates that polymer coatings, nano-composite coatings, and encapsulation techniques consistently provide the most efficient and feasible outcomes. Therefore, this review article examined the phenomenon of corrosion inhibition mainly from the perspective of these three techniques. Moreover, this research utilized secondary qualitative methods to obtain data and information on comparative techniques. It is found tha... Read More

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"Wear and Corrosion Resistance Technology of Thin Film Materials" is a new and open Special Issue published in Materials, presenting research and review papers that focus on the wear and corrosion resistance of various materials, new scientific issues and their useful applications in wear and corrosion research and industrial sectors [...].

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This reprint gathers works on various coating materials and technologies aimed at the improvement of materials’ properties, such as corrosion resistance or biocompatibility. Systematic studies demonstrate how the structure and morphology of coatings can change the mechanical, chemical and various functional properties of materials. The reprint contributes to the better understanding of various phenomena induced by metal, ceramic or composite coatings in core materials and, thus, it can help in the more rational design of the selected material’s properties in future studies by the application of coatings.

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materials for enhancement of anti-corrosion and anti-biofouling performance, including corrosion inhibitors [3][4], organic/inorganic/nano-composite/waterborne protective coatings [5][6], surface/coatings construction with special wettability [7][8] etc. This Research Topic collected 11 original research papers from 65 contributors of the relevant fields, presenting latest advances of corrosion/biofouling mechanism and novel anti-corrosion and anti-biofouling materials including crevice corrosion, microbiologically influenced corrosion (MIC), hydrogen permeation, corrosion inhibitors, organic anti-corrosion coatings, superhydrophobic coating, pH-responsive coating, and waterborne epoxy coating.For advances of corrosion and biofouling mechanisms, Wang et al. Although some significant progress has been achieved in this Research Topic, many challenges remain for improving the long-term durability, environmental sustainability, easy applicability etc. As guest editors, we hope the 11 original research papers collected in this Research Topic can provide the readers with some new insights ... Read More

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Among the various corrosion prevention methods as described in [...]

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Concentrating solar power (CSP), also known as solar thermal electricity (STE), is increasing its deployment worldwide. One of the potential ways to decrease costs in CSP plants is the improvement of corrosion resistance between the heat transfer fluid (HTF) and storage materials, and the materials used for pipes, tanks, containers, and receivers. This paper assesses the literature on this topic (290 publications) through a bibliometric analysis, identifying the trends of the research, the topics of most interest to researchers, and literature gaps. Most documents are from Spain, Germany, and the United States of America. Results show that the most recent approaches for corrosion migration are selective coatings and the use of nanoparticles to reduce corrosiveness. The use of nitrates is changing to other salts such as chloride mixtures and potassium compounds. In addition, the techniques used to evaluate corrosion results are dominated by scanning electron microscopy (SEM), X-ray diffraction (XRD), and electrochemical testing, but new dynamic techniques are starting to be used, repr... Read More

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The Cover Feature shows the ambient spray coating of polymer composite film for encapsulating perovskite solar cells. The superhydrophobic barrier film enables significant enhancement of device stability. More information can be found in the Full Paper by Z. Luo et al.

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Corrosion inhibitors loaded in coatings promote the protection performance of coatings, avoid the local corrosion of metal substrates, and endow the self-healing properties of the coatings. The stimuli-responsive release of corrosion inhibitors, which is generally achieved by loading corrosion inhibitors in containers, is key to the self-healing and long-term protection of the coatings. The loading and release methods of corrosion inhibitors are discussed in the article. First, two kinds of loading methods for corrosion inhibitors are reviewed, which are one-step synthetic methods and multistep synthetic methods. Then the released methods of corrosion inhibitors, which can be achieved by intrinsic properties and surface modification of containers, are summarized.

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Corrosion is an electrochemical process that is being driven thermodynamically. It is only applied to metals and it has three essential elements; anode (electron release spot), cathode (electron receiver spot), and an electrolyte (a fluid through which ions produced via electrochemical processes can easily move). Three main measures to predict corrosion (standard hydrogen electrode, galvanic series, and Pourbaix diagrams) are briefly discussed from a practical point of view. All anti-corrosion technical measures can be categorized into five groups: physical, chemical, mechanical, electrical, and design (that also includes material selection). Each of these, and particularly physical anti-measures (paint/coating), as well as material selection will be explained in more detail. Care has been taken to review the application side of these theoretical concepts to use them as a background for defining what is meant by management of corrosion.

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New generation concentrated solar power (CSP) plants require new solar receiver materials with selective optical properties and excellent corrosion resistance against molten salts. MAX phases are promising materials for CSP applications due to their optical properties and resistance to thermal shocks. Herein, we report a solar absorptance >/= 0.5 and a thermal emittance of 0.17-0.31 between 600 and 1500 K for Cr2AlC, Ti2AlC, and Ti3AlC2. These compositions were also exposed to solar salt corrosion at 600C for up to 4 weeks. Cr2AlC exhibited superior corrosion resistance due to the formation of a protective nanometric layer.

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The study of corrosion is vital to reducing the overhead costs in the manufacturing industries. However, finding suitable application methods for prevention is a concern due to manufacturer specification and resource investment procedure. The coating is recognized as one of the foremost ways of applying resistance to corrosion damage. Electrodeposition is a unique technology because of its excellent control of the chemical properties, mechanical strengthening behavior, and structural evolution over time. Thus, these overview studies discuss the possible simplicity of electrochemical degradation of metal, the susceptibility within the metal range, and the protective coatings characteristics.

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