MXene-based anti-corrosive coatings: From physical barrier to active corrosion protection

IF 6.5 2区 材料科学 Q1 CHEMISTRY, APPLIED Progress in Organic Coatings Pub Date : 2025-03-17 DOI:10.1016/j.porgcoat.2025.109225
Yonglong Zhang, Yue Yin, Jie Li, Feiyan Yang, Lingjing Meng, Yunfei Cai, Jinfang Wu, Fang Guo, Wenbo Wang
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Abstract

Coating is an effective method for protecting metals from corrosion, as it can prevent aggressive ions from penetrating onto metallic surface. However, pure anti-corrosive coatings are often susceptible to the formation of micropores and cracks during the preparation process and can be easily damaged by external environment factors during service, significantly reducing their protective capabilities. An effective strategy to address this issue is the incorporation of high-aspect-ratio, high stability two-dimensional (2D) materials, such as MXenes, into the coating. The “labyrinth effect” created by the lamellar 2D structure of MXenes forms a longer and more tortuous diffusion path, effectively blocking the longitudinal penetration of corrosive ions and enhancing the barrier performance of the coating. To further enhance the corrosion protection provided by MXene fillers in the coating matrix, modification treatments are necessary to improve the dispersion of the MXene fillers and the overall quality of the coating. These modifications can effectively reduce the diffusion paths of aggressive ions. Additionally, the high specific surface area of MXenes allows them to store corrosion inhibitors, enabling the slow release of these inhibitors for long-term corrosion protection. This review summarizes the application of MXene in anti-corrosive coatings, including physical barrier and active protection. We begin by discussing the preparation of single or few-layer 2D MXene fillers. Next, we examine the use of pristine or modified MXenes as passivation fillers to strengthen coating integrity. Furthermore, we explore the use of MXenes as supports for corrosion inhibitors to endow the anti-corrosive coatings with active protection capabilities. Finally, the future development directions for MXene fillers are prospected, and the challenges of enhancing the corrosion protection of organic coatings were discussed.
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来源期刊
Progress in Organic Coatings
Progress in Organic Coatings 工程技术-材料科学:膜
CiteScore
11.40
自引率
15.20%
发文量
577
审稿时长
48 days
期刊介绍: The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.
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