Ultralight and Mechanically Robust Ti3C2T x Hybrid Aerogel Reinforced by Carbon Nanotubes for Electromagnetic Interference Shielding

Pradeep Sambyal, Aamir Iqbal, Junpyo Hong, Hyerim Kim, Myung Ki Kim, Soon Man Hong, Meikang Han, Yury Gogotsi, Chong Min Koo

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Lightweight materials with high electrical conductivity and robust mechanical properties are highly desirable for electromagnetic interference (EMI) shielding in modern portable and highly integrated electronics. Herein, a three-dimensional (3D) porous Ti3C2Tx/carbon nanotube (CNT) hybrid aerogel was fabricated via a bidirectional freezing method for lightweight EMI shielding application. The synergism of the lamellar and porous structure of the MXene/CNT hybrid aerogels contributed extensively to their excellent electrical conductivity (9.43 S cm-1) and superior electromagnetic shielding effectiveness (EMI SE) value of 103.9 dB at 3 mm thickness at the X-band frequency, the latter of which is the best value reported for synthetic porous nanomaterials. The CNT reinforcement in the MXene/CNT hybrid aerogels enhanced the mechanical robustness and increased the compressional modulus by 9661% relative to that of the pristine MXene aerogel. The hybrid aerogel with high electrical conductivity, good mechanical strength, and superior EMI shielding performance is a promising material for inhibiting EMI pollution.

Original languageEnglish
Pages (from-to)38046-38054
Number of pages9
JournalACS Applied Materials and Interfaces
Volume11
Issue number41
DOIs
Publication statusPublished - 2019 Oct 16

Keywords

  • carbon nanotube
  • electromagnetic wave shielding
  • hybrid aerogel
  • MXene
  • three-dimensional foam

ASJC Scopus subject areas

  • Materials Science(all)

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