Alternating Multilayered Ti 3 C 2 T x /Co Sandwich with Co Frosting for Superior Electromagnetic Wave Absorption Performance and Infrared Stealth Ability

MXene-based wave-absorbing materials face challenges in practical applications such as severe sheet stacking and low dielectric loss. Herein, we used two-dimensional (2D) layered Ti3C2Tx MXene as the backbone and stereoscopic magnetic cobalt (Co) crystals as the buttress and coating to design a connected three-dimensional layered sandwich heterostructure. By adjustment of the ratio of raw materials, Co crystals were anchored both within the interlayer gaps of the adjacent 2D sheets and on their surfaces through electrostatic and ion–dipole interactions with the functional groups of Ti3C2Tx. This prevented magnetic and sheet agglomeration and formed a uniform frosting-like coating on the surface. Owing to this…

• DO
  Department of Science and Technology of Jilin Province

  Award: YDZJ202301ZYTS307