TiCT MXene Polymer Composites for Anticorrosion: An Overview and Perspective.

As the most studied two-dimensional (2D) material from the MXene family, TiCT has constantly gained interest from academia and industry. TiCT MXene has the highest electrical conductivity (up to 24,000 S cm) and one of the highest stiffness values with a Young's modulus of ∼ 334 GPa among water-dispersible conductive 2D materials. The negative surface charge of MXene helps to disperse it well in aqueous and other polar solvents. This solubility across a wide range of solvents, excellent interface interaction, tunable surface functionality, and stability with other organic/polymeric materials combined with the layered structure of TiCT MXene make it a promising material for anticorrosion coatings. While there are many reviews on TiCT MXene polymer composites for catalysis, flexible electronics, and energy storage, to our knowledge, no review has been published yet on MXenes' anticorrosion applications. In this brief report, we summarize the current progress and the development of TiCT polymer composites for anticorrosion. We also provide an outlook and discussion on possible ways to improve the exploitation of TiCT polymer composites as anticorrosive materials. Finally, we provide a perspective beyond TiCT MXene composition for the development of future anticorrosion coatings.