Special Issue "State-of-the-Art Electromagnetic Wave Absorbing Nanocomposites in Asia"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: 31 January 2022.

Special Issue Editors

Prof. Dr. Hongjing Wu
E-Mail Website
Guest Editor
School of Physical Science and Technology, Northwestern Polytechnical University, Xi’an, China
Interests: electromagnetic wave absorbing ferrite materials; synthesis of multi-shelled hollow oxide/ferrite spheres; environmental catalysis
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Xiaomeng Fan
E-Mail Website
Guest Editor
Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, China
Interests: ceramics; electromagnetic wave absorbing/shielding materials; carbon materials

Special Issue Information

Dear Colleagues,

Today, electromagnetic pollution triggered by the wide application of 5G technology poses a grave threat to people's health and the use of precision instruments. The most effective way to solve this issue is to design effective electromagnetic wave absorbing materials (EMWAMs). In order to achieve significant absorption of electromagnetic waves, the absorber should include exceptional impedance matching ability and excellent attenuation ability. Due to quantum size effect and small size effect, nanomaterials have been widely used in the field of microwave absorption. However, with single-phase nanomaterials, it is generally difficult to achieve plummy impedance matching or attenuation performance. Rational recombination of nanomaterials is an effective avenue by which to achieve dissipative electromagnetic waves. For example, single-phase MXene is widely used in the field of electromagnetic shielding due to its high conductivity, and MXene-based composite may be one of the optimum candidates for the purpose of “thin, light, wide and strong” EMW absorbing materials.

In recent years, researchers from Asia have been very active in the field of EMWAMs, contributing the most papers. This Special Issue specifically focuses on “electromagnetic wave absorbing nanocomposites”, including ferrites, oxides, carbides, sulfides, MXenes, ceramics, and carbon materials, and welcomes contributions devoted to nanocomposite synthesis, advanced characterization, and the relationship between structure and properties of novel electromagnetic wave absorbing nanocomposites.

Prof. Dr. Hongjing Wu
Prof. Dr. Xiaomeng Fan
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • electromagnetic wave absorption
  • nanocomposites
  • synthesis
  • characterization
  • mechanism

Published Papers (2 papers)

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Research

Article
Tuning the Dielectric and Microwaves Absorption Properties of N-Doped Carbon Nanotubes by Boron Insertion
Nanomaterials 2021, 11(5), 1164; https://doi.org/10.3390/nano11051164 - 29 Apr 2021
Cited by 1 | Viewed by 555
Abstract
It is of great significance to regulate the dielectric parameters and microstructure of carbon materials by elemental doping in pursuing microwave absorption (MA) materials of high performance. In this work, the surface electronic structure of N-doped CNTs was tuned by boron doping, in [...] Read more.
It is of great significance to regulate the dielectric parameters and microstructure of carbon materials by elemental doping in pursuing microwave absorption (MA) materials of high performance. In this work, the surface electronic structure of N-doped CNTs was tuned by boron doping, in which the MA performance of CNTs was improved under the synergistic action of B and N atoms. The B,N-doped carbon nanotubes (B,N-CNTs) exhibited excellent MA performance, where the value of minimum reflection loss was −40.04 dB, and the efficient absorption bandwidth reached 4.9 GHz (10.5–15.4 GHz). Appropriate conductance loss and multi-polarization loss provide the main contribution to the MA of B,N-CNTs. This study provides a novel method for the design of CNTs related MA materials. Full article
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Article
Nonlinear Optical Response of Reflective MXene Molybdenum Carbide Films as Saturable Absorbers
Nanomaterials 2020, 10(12), 2391; https://doi.org/10.3390/nano10122391 - 30 Nov 2020
Cited by 3 | Viewed by 709
Abstract
Molybdenum carbide (Mo2C) is a two-dimensional (2D) MXene material which makes it a promising photoelectric material. In this study, reflective type MXene Mo2C thin films were coated on a silver mirror by a magnetron sputtering method and were subsequently [...] Read more.
Molybdenum carbide (Mo2C) is a two-dimensional (2D) MXene material which makes it a promising photoelectric material. In this study, reflective type MXene Mo2C thin films were coated on a silver mirror by a magnetron sputtering method and were subsequently used in a passively Q-switched solid-state pulsed laser generator at the central wavelengths of 1.06 and 1.34 μm, respectively. The fabricated thin films of reflective type MXene Mo2C exhibited large modulation depth of 6.86% and 5.38% at the central wavelengths of 1064 and 1342 nm, respectively. By inserting the Mo2C saturable absorbers (SAs) into V-shaped Nd:YAG laser, short pulses were generated having a pulse duration, pulse energy, and average output power of 254 ns, 2.96 μJ, and 275 mW, respectively, at a wavelength of 1.06 μm. Similarly, shorter laser pulses were obtained in Nd:YVO4 laser at 1.34 μm. Our results illustrated potential of the 2D MXene Mo2C films for laser applications. Full article
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