Corrosion resistance of Mg−Al LDH/Mg(OH)2/silane−Ce hybrid coating on magnesium alloy AZ31

Qiu, Zai-Meng; Zeng, Rong‐Chang; Zhang, Fen; Song, Liang; Li, Shuoqi

doi:10.1016/s1003-6326(20)65435-8

Cited by 52 publications

(13 citation statements)

References 41 publications

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“…The degradation products of Mg-based materials are primarily composed of Mg(OH) 2 with a loose structure. Hence, researchers have attempted to create a uniform and compact Mg-based hydroxide layer on Mg alloy for enhancing its corrosion resistance [ 101 , 102 ]. Currently, the hydroxide films prepared using a hydrothermal method (hydrothermal treatment is a strategy in which the precursor is placed in an autoclave to react under high pressure and temperature [ 103 ]), including Mg(OH) 2 and layered double hydroxide (LDH), have been highlighted [ 104 , 105 ].…”

Section: Surface Modification Of Mg Alloy Stentsmentioning

confidence: 99%

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Zhang

Yang

et al. 2021

Bioactive Materials

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109

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Magnesium (Mg) and its alloys, as potential biodegradable materials, have drawn wide attention in the cardiovascular stent field because of their appropriate mechanical properties and biocompatibility. Nevertheless, the occurrence of thrombosis, inflammation, and restenosis of implanted Mg alloy stents caused by their poor corrosion resistance and insufficient endothelialization restrains their anticipated clinical applications. Numerous surface treatment tactics have mainly striven to modify the Mg alloy for inhibiting its degradation rate and enduing it with biological functionality. This review focuses on highlighting and summarizing the latest research progress in functionalized coatings on Mg alloys for cardiovascular stents over the last decade, regarding preparation strategies for metal oxide, metal hydroxide, inorganic nonmetallic, polymer, and their composite coatings; and the performance of these strategies in regulating degradation behavior and biofunction. Potential research direction is also concisely discussed to help guide biological functionalized strategies and inspire further innovations. It is hoped that this review can give assistance to the surface modification of cardiovascular Mg-based stents and promote future advancements in this emerging research field.

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Section: Surface Modification Of Mg Alloy Stentsmentioning

confidence: 99%

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Zhang

Yang

et al. 2021

Bioactive Materials

Self Cite

109

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“…Layered double hydroxide is an inorganic network that can form a physical corrosion resistive film by the accumulation of dense nanoparticles. Zhang et al . prepared a protective film of MgAl LDH by hydrothermal crystallization of an anodic layer on a AZ31 Mg alloy.…”

Section: Recent Advancements In Water Electrolysismentioning

confidence: 99%

Advanced Two-Dimensional Materials for Green Hydrogen Generation: Strategies toward Corrosion Resistance Seawater Electrolysis─Review and Future Perspectives

Lokesh

Srivastava

2022

Energy Fuels

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Excessive usage of nonrenewable resources to meet global energy requirements has become a serious concern from the energy and environmental perspective. The continuous emission of CO 2 in the environment from fossil fuels has become a major cause of global warming. Green hydrogen generation through seawater electrolysis has been an emergent technology that can play a prominent role in replacing conventional energy sources. Electrolysis of seawater using renewable sources such as solar, wind, and geothermal generates green hydrogen which has almost negligible harmful byproducts. Different ions present in seawater such as chlorides and sulfates impose serious corrosion problems during the electrolysis process as chloride ions penetrate the metal electrode surface and oxidize it and also liberate chlorine gas at the anode. For the electrolysis processes, catalysis plays a challenging task to reduce the kinetic barrier for the conversion of water molecules to hydrogen and oxygen products. Photoelectrocatalysts are another kind of semiconductor-based catalyst in which band gap, exchange charge carrier, and surface area play key roles in the water-splitting process. Two-dimensional nanomaterials offer many advantages like high specific surface area for electron transfer, high tunable functionalities, and flexible structural properties that make them suitable for different applications. Layered double hydroxide (LDH) as a highly efficient catalyst has the potential to perform the hydrogen production process as per the industrial application. LDH has many advantages in an effective water-splitting mechanism that includes easy synthesis methods, flexible morphology, long-term stability, and adaptability to different applications. Another major advantage is the corrosion inhibition property of LDH by different mechanisms like adsorption of corrosionresponsible ions, self-healing technique, and protective film formation which are discussed briefly in this review. This review provides a state-of-the-art analysis about the various important strategies to be adopted for effective seawater electrolysis. Finally, we examine the new challenges and the novel approaches to suppress corrosion processes during seawater electrolysis.

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“…The formation of thin films on metal surfaces is the most effective way to mitigate corrosion through surface modification technology, forming chemical inhibition systems or physical barriers. − Coatings with excellent protection, good adhesion, and self-healing properties to metal substrates are often the basis of many research studies. , In addition, the intelligent encapsulation system of different inhibitors can effectively assess the requirements in various environments.…”

Section: Introductionmentioning

confidence: 99%

“…1−3 Coatings with excellent protection, good adhesion, and self-healing properties to metal substrates are often the basis of many research studies. 4,5 In addition, the intelligent encapsulation system of different inhibitors can effectively assess the requirements in various environments.…”

Section: Introductionmentioning

confidence: 99%

Corrosion Resistance of the GO/ZIF-8 Hybrid Loading Benzotriazole as a Multifunctional Composite Filler-Modified MgAlY Layered Double Hydroxide Coating

Chen

Dai

et al. 2022

Langmuir

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A composite coating with good load-carrying and controlled release capabilities for the corrosion inhibitor benzotriazole (BTA) was prepared while providing active and passive corrosion protection for magnesium alloy systems. In this paper, the organic corrosion inhibitor BTA was loaded into the ZIF-8/GO hybrid (GZB), and then, the GZB composite was coated with hexadecyltrimethoxysilane (HDTMS). Then, the GZB composites carried by HDTMS were made to adhere a ternary MgAlY layered double hydroxide (LDH) coating based on microarc oxidation (MAO) coating by electrophoresis (Si-MgAlY LDH coating). The successful loading of BTA by GZB composites was verified by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM). Meanwhile, the Si-MgAlY LDH coating was characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The potentiodynamic polarization curves show that the corrosion current density of the Si-MgAlY LDH coating reaches (2.08 ± 0.49) × 10–9 A/cm2, which means that the Si-MgAlY LDH coating greatly improves the corrosion resistance of magnesium alloy AZ31. The Si-MgAlY LDH coating can also achieve self-healing function in harsh environments, which is attributed to the synergistic effect of passive and active protection. The composite coating is of great significance to expand the potential applications of magnesium alloys.

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Corrosion resistance of Mg−Al LDH/Mg(OH)2/silane−Ce hybrid coating on magnesium alloy AZ31

Cited by 52 publications

References 41 publications

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Advances in coatings on magnesium alloys for cardiovascular stents – A review

Advanced Two-Dimensional Materials for Green Hydrogen Generation: Strategies toward Corrosion Resistance Seawater Electrolysis─Review and Future Perspectives

Corrosion Resistance of the GO/ZIF-8 Hybrid Loading Benzotriazole as a Multifunctional Composite Filler-Modified MgAlY Layered Double Hydroxide Coating

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