Biomimetic Porous MXene Sediment-Based Hydrogel for High-Performance and Multifunctional Electromagnetic Interference Shielding

Developing high-performance and functional hydrogels that mimic biological materials in nature is promising yet remains highly challenging. Through a facile, scalable unidirectional freezing followed by a salting-out approach, a type of hydrogels composed of "trashed" MXene sediment (MS) and biomimetic pores is manufactured. By integrating the honeycomb-like ordered porous structure, highly conductive MS, and water, the electromagnetic interference (EMI) shielding effectiveness is up to 90 dB in the X band and can reach more than 40 dB in the ultrabroadband gigahertz band (8.2-40 GHz) for the highly flexible hydrogel, outperforming previously reported porous EMI shields. Moreover, thanks to the stable…

• SU
  Shandong University

  Award: 31370082163127
• MO
  Ministry of Science and Technology of the People's Republic of China

  Award: 2021YFB3502500
• NS
  Natural Science Foundation of Shandong Province

  Awards: 2022HYYQ-014, ZR2016BM16
• GO
  Government of Shandong Province

  Awards: 2021ZLGX01, 2019JZZY010312