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Journal article
Efficient microwave absorption with Vn+1CnTx MXenes
Cell reports physical science, v 3(10)
19 Oct 2022
Abstract
The availability of MXenes and other two-dimensional conductive nanomaterials with tunable surface chemistry has reshaped the field of electromagnetic protection. However, the high electrical conductivity and low dielectric loss of titanium-based MXenes lead to strong reflection of electromagnetic waves, even when combined with polymers to form composites. Here, we report on the ability of vanadium-based MXenes to provide broadband microwave absorption. Polyurethane composites with ∼2 wt % Vn+1CnTx can absorb 90% of electromagnetic waves covering the entire X band. In addition, pure Vn+1CnTx films of submicrometer thickness can provide effective electromagnetic interference shielding. The free electron transport, surface terminations, native defects, and layers arrangement in composites have profound effects on electronic and dielectric properties of Vn+1CnTx MXenes. This study points toward a new frontier for development of thin and highly absorbing MXene-based electromagnetic protection materials.
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•Polyurethane composites with ∼2 wt % Vn+1CnTx absorb >90% of microwaves in X band•600-nm-thick Vn+1CnTx films provide effective electromagnetic interference shielding•The native defects and surface groups affect the microwave absorption behavior
Han et al. report that vanadium-based MXenes (V2CTx and V4C3Tx) can provide broadband microwave absorption with ultralow filler loading in polymer matrix. The free electron transport, surface terminations, native defects, and layers arrangement significantly affect electronic and dielectric properties of Vn+1CnTx MXenes.
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Details
- Title
- Efficient microwave absorption with Vn+1CnTx MXenes
- Creators
- Meikang Han - Drexel University, A.J. Drexel Nanomaterials InstituteChristopher E. Shuck - Drexel University, Materials Science and EngineeringAkash Singh - Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USAYizhou Yang - Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USAAlexandre C. Foucher - University of PennsylvaniaAdam Goad - A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia, PA 19104, USABernard McBride - Drexel UniversitySteven J. May - Drexel University, Materials Science and EngineeringVivek B. Shenoy - Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USAEric A. Stach - University of PennsylvaniaYury Gogotsi - Drexel University, Materials Science and Engineering
- Publication Details
- Cell reports physical science, v 3(10)
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; A.J. Drexel Nanomaterials Institute
- Web of Science ID
- WOS:000877165200001
- Scopus ID
- 2-s2.0-85140068765
- Other Identifier
- 991019186784504721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Energy & Fuels
- Materials Science, Multidisciplinary
- Physics, Multidisciplinary