article · Advanced Functional Materials
Carbon dots are nanomaterials characterised by high biocompatibility, elevated specific surface area, straightforward functionalisation, and diverse synthesis routes. They are increasingly utilised in corrosion protection strategies, demonstrating notable results. Current developments encompass various preparation techniques, each offering distinct practical merits. Carbon dots serve effectively as corrosion inhibitors, particularly when doped with heteroatoms such as nitrogen, or co-doped with nitrogen and sulphur alongside other functional elements. These doping strategies enhance protective mechanisms and improve inhibition performance. In addition to direct inhibitor use, carbon dots and functionalised variations can be incorporated into protective surface coatings to shield underlying substrates against degradation. Ongoing advancements indicate that carbon dots, especially heteroatom-doped variants, offer adaptable pathways for creating sophisticated corrosion protection technologies.
Corrosion causes severe degradation to metallic infrastructure, machinery, and industrial components, demanding versatile and effective protective solutions. Carbon dots offer an adaptable approach because their chemical properties can be fine-tuned through element doping. Enhancing these nanomaterials for use in inhibitors and protective coatings supports the development of more durable solutions to protect essential industrial equipment.
The findings point towards applications in anti-corrosion coatings and corrosion-inhibiting chemical additives, which could serve coating manufacturers, materials formulators, and industrial asset managers. Because the abstract details a review of preparation approaches, dopant mechanisms, and research progress, the work represents early-stage to intermediate laboratory research rather than an immediately deployable commercial product.
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Abstract Carbon dots (CDs) have garnered extensive attention owing to their excellent biocompatibility, elevated specific surface area, and facile functionalization, as well as their diverse methods of preparation. In recent times, CDs have been applied for anti‐corrosion and obtained some significant results. In this work, the preparation methods of CDs are first briefly introduced, and the relative merits of different approaches are highlighted. Subsequently, the application of CDs in the realm of corrosion inhibitors is discussed, and the corrosion inhibition effects and mechanism of nitrogen‐doped CDs, nitrogen and sulfur‐co‐doped CDs, as well as CDs functionalized with other elements and nitrogen‐co‐doped are summarized. Finally, the application of CDs and functionalized CD‐modified coatings for anti‐corrosion and their protective mechanism is analyzed in detail. This review summarizes recent progress in research related to CDs and heteroatom‐doped CDs in anti‐corrosion applications and anticipates the prospects and applications of CDs in corrosion protection. With their unique properties and versatile applications, CDs are expected to assume a progressively pivotal role in the advancement of cutting‐edge corrosion protection technologies.
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DOI: 10.1002/adfm.202411456
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