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- W4387245749 endingPage "47576" @default.
- W4387245749 startingPage "47566" @default.
- W4387245749 abstract "Lightweight porous composite materials (PCMs) with outstanding electromagnetic interference (EMI) shielding performances are ideal for aerospace, artificial intelligence, military, and other fields. Herein, a three-dimensional Ti3C2Tx MXene/sodium alginate (SA)/carbon nanotubes (CNTs) (MSC) PCMs was prepared by a controlled directional freezing process. This method constructs a directionally ordered porous structure, which can make the incident electromagnetic waves reflect and scattered several times in the PCMs. The introduction of CNTs into the MSC PCMs can form three-dimensional conductive networks with MXene, thus improving the conductivity and further improving the electromagnetic shielding performance. Furthermore, the SA with abundant hydrogen bonding can strengthen the interlayer interaction between MXene and CNTs. Profiting from the controlled directional freezing and highly aligned porous structure, the MSC PCMs with 75 wt % CNTs exhibit ultrahigh conductivity of 1630 S m-1, an ultrahigh EMI shielding effectiveness of 48.0 dB in X-band for electromagnetic waves incident perpendicular to the hole growth direction, and compressive strength of 72.3 kPa. The as-prepared MSC PCMs show excellent EMI shielding and mechanical properties and have significant applications in the preparation of an entirely novel type of EMI shielding materials with an absorption-based mechanism." @default.
- W4387245749 created "2023-10-03" @default.
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- W4387245749 date "2023-10-02" @default.
- W4387245749 modified "2023-10-17" @default.
- W4387245749 title "High-Efficiency Electromagnetic Interference Shielding from Highly Aligned MXene Porous Composites via Controlled Directional Freezing" @default.
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- W4387245749 doi "https://doi.org/10.1021/acsami.3c10599" @default.
- W4387245749 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37782766" @default.
- W4387245749 hasPublicationYear "2023" @default.
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