Functional Tailoring of Multi‐Dimensional Pure MXene Nanostructures for Significantly Accelerated Electromagnetic Wave Absorption

Abstract Transition metal carbide (Ti 3 C 2 T x MXene), with a large specific surface area and abundant surface functional groups, is a promising candidate in the family of electromagnetic wave (EMW) absorption. However, the high conductivity of MXene limits its EMW absorption ability, so it remains a challenge to obtain outstanding EMW attenuation ability in pure MXene. Herein, by integrating HF etching, KOH shearing, and high‐temperature molten salt strategies, layered MXene (L‐MXene), network‐like MXene nanoribbons (N‐MXene NRs), porous MXene monolayer (P‐MXene ML), and porous MXene layer (P‐MXene L) are rationally constructed with favorable microstructures and surface states for EMW absorption. HF, KOH,…

• NN
  National Natural Science Foundation of China

  Award: 22269010