Research on two-dimensional layered materials for metal corrosion protection: Advances and challenges.

Metal material corrosion is often an unavoidable phenomenon in our daily lives and industrial production, which shortens the service life of metal materials and causes huge economic losses. Therefore, achieving high-quality corrosion protection is crucial for reducing metal corrosion. In recent years, advanced two-dimensional layered materials (2DLM) have shown great potential for applications in the anti-corrosion field due to unique structure and excellent performance, and have received extensive attention from researchers. However, the majority of current research on anticorrosive coatings is based on synthetic materials, and there are few summarized reports on natural material-based anticorrosive coatings. This undoubtedly lacks a systematic understanding of the rapidly evolving 2DLM in anti-corrosion coating applications. In this review, 2DLM are categorized into natural, traditional, and emerging 2DLM from the point of view of material attributes, and systematically sorted and reviewed the research on their applications in the field of anti-corrosion coatings. The structures and properties of various 2DLM are first briefly introduced. The recent research progress on 2DLM in anti-corrosion coating applications is then reviewed with emphasis. The types of anti-corrosion coatings based on various 2DLM and the performance of these coatings are systematically summarized. Furthermore, the advantages and limitations of anti-corrosion coatings based on various 2DLM are comparatively discussed. At the end of this paper, the challenges for the future preparation and application of 2DLM in the field of anti-corrosion coatings are outlooked. This review aims to utilize existing research on traditional and emerging materials to expand the development of natural materials in anticorrosive coatings, providing valuable insights for future research and the design of anticorrosive coatings. • Advanced 2DLM contribute to efficient corrosion protection. • Presentation of recent advances in coatings based on natural/traditional/emerging 2DLM. • Discusses advantages and limitations of different 2DLM for coating applications. • Summary and outlook on challenges and prospects of 2DLM in anti-corrosion coatings. [ABSTRACT FROM AUTHOR]