MXenes have been proven to be outstanding lossy phase of advanced electromagnetic interference (EMI) shielding materials. However, their poor tolerance to oxygen and water results in fast degradation of the pristine two-dimensional (2D) nanostructure and fading of the functional performance. Herein, in this research, natural antioxidants (e.g., melatonin, tea polyphenols, and phytic acid) were employed to protect the TiCT MXene from its degradation in order to achieve a long-term stability of the EMI shielding performance. The results showed that the synthesized composites comprised of antioxidants and TiCT exhibited a decelerating degradation rate resulting in an improved EMI shielding effective (SE) stability. The antioxidation mechanism of the applied antioxidants is discussed with respect to the nanostructure evolution of the TiCT MXene. This work contributes to the basic foundations for the further development of advanced MXenes for stable applications in the EM field.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10651686PMC
http://dx.doi.org/10.1016/j.isci.2023.107176DOI Listing

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