Boosting Interfacial Polarization Through Heterointerface Engineering in MXene/Graphene Intercalated-Based Microspheres for Electromagnetic Wave Absorption

Abstract Multi-layer 2D material assemblies provide a great number of interfaces beneficial for electromagnetic wave absorption. However, avoiding agglomeration and achieving layer-by-layer ordered intercalation remain challenging. Here, 3D reduced graphene oxide (rGO)/MXene/TiO 2 /Fe 2 C lightweight porous microspheres with periodical intercalated structures and pronounced interfacial effects were constructed by spray-freeze-drying and microwave irradiation based on the Maxwell–Wagner effect. Such approach reinforced interfacial effects via defects introduction, porous skeleton, multi-layer assembly and multi-component system, leading to synergistic loss mechanisms. The abundant 2D/2D/0D/0D intercalated…

• SJ
  Shanghai Jiao Tong University
• NK
  National Key Research and Development Program of China

  Awards: 2021YFE0100500, 2021YFB3501504
• BA
  Basic and Applied Basic Research Foundation of Guangdong Province
• NS
  Natural Science Foundation of Zhejiang Province

  Awards: 2021C01004, LQ22E030003