3D Printed Integrated Gradient-Conductive MXene/CNT/Polyimide Aerogel Frames for Electromagnetic Interference Shielding with Ultra-Low Reflection

Construction of advanced electromagnetic interference (EMI) shielding materials with miniaturized, programmable structure and low reflection are promising but challenging. Herein, an integrated transition-metal carbides/carbon nanotube/polyimide (gradient-conductive MXene/CNT/PI, GCMCP) aerogel frame with hierarchical porous structure and gradient-conductivity has been constructed to achieve EMI shielding with ultra-low reflection. The gradient-conductive structures are obtained by continuous 3D printing of MXene/CNT/poly (amic acid) inks with different CNT contents, where the slightly conductive top layer serves as EM absorption layer and the highly conductive bottom layer as reflection layer. In addition,…

• NN
  National Natural Science Foundation of China

  Awards: 2021QNRC001, 2021-01, 2021-01-07-00-03-E00108, 52233006, 52073053
• CP
  China Postdoctoral Science Foundation

  Award: 2021M690596
• SM
  Shanghai Municipal Education Commission

  Award: 2021-01-07-00-03-E00108
• SA
  Science and Technology Commission of Shanghai Municipality

  Awards: 20520741100, 21QA1400300
• SJ
  Shanghai Jiao Tong University
• SR
  Shanghai Rising-Star Program

  Award: 21QA1400300