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Nanomaterials
Special Issues
Harvesting Electromagnetic Fields with Nanomaterials
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Harvesting Electromagnetic Fields with Nanomaterials

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 30 November 2025 | Viewed by 4432

Special Issue Editors

Prof. Dr. Junfeng Yan

E-Mail Website
Guest Editor
School of Information Science Technology, Northwest University, Xi’an 710127, China
Interests: electromagnetic wave absorption; microwave absorption
Dr. Jiaolong Liu

E-Mail Website
Guest Editor
School of Physics, Xidian University, Xi’an 710071, China
Interests: electromagnetic functional nanocomposites and their stealth applications
Special Issues, Collections and Topics in MDPI journals
Dr. Zhen Wang

E-Mail
Guest Editor
School of Science, Chang'an University, Xi'an 710064, China
Interests: stealth application of electromagnetic wave absorbing materials; magnetic functional materials and devices

Special Issue Information

Dear Colleagues,

We would like to invite all researchers in the field of multi-functional nanomaterials and applications, especially the participants of the 5th International Forum on Micro-Nano Technology and Composites, to submit their original research papers for this Special Issue on “Harvesting Electromagnetic Fields with Nanomaterials”, to be published in Nanomaterials.

This Special Issue includes but not limit to selected papers from the 5th International Forum on Micro-Nano Technology and Composites, to be held on 25-27 October in Zhengzhou, China. Responding to the application from the Low-Dimensional Electromagnetic Functional Materials and Devices sub-forum, a Special Issue entitled "Harvesting Electromagnetic Fields with Nanomaterials" is planned. The topics of this Special Issue will contain the accepted papers presented during the forum, related to “nanotechnologies and nanomaterials”, and mainly include the following:

  1. First-principle calculation, design, development, and application of wave absorbing materials and electromagnetic shielding materials;
  2. Design, development, and application of metamaterial absorbers;
  3. First-principle calculation, photocatalysis, photoluminescence, and photoelectric properties of nanomaterials.

Prof. Dr. Junfeng Yan
Dr. Jiaolong Liu
Dr. Zhen Wang
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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
  • wave absorbing materials
  • metamaterial
  • ultraviolet
  • first-principle

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (5 papers)

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Research

18 pages, 5480 KB  
Article
A First-Principles Investigation of the Structural, Electronic, Optical, and Mechanical Properties of Hydrogen Storage Ordered Vacancy Double Perovskite X2MH6 Materials
by Jing Luo, Qun Wei, Xinyu Wang, Meiguang Zhang and Bing Wei
Nanomaterials 2025, 15(17), 1339; https://doi.org/10.3390/nano15171339 - 1 Sep 2025
Viewed by 592
Abstract
The rising demand for clean energy, especially hydrogen, has heightened the need for efficient storage materials. Perovskites, with their unique structures, show great promise for hydrogen storage and optical uses. To identify promising candidates for hydrogen storage materials, the mechanical, electronic, and optical [...] Read more.
The rising demand for clean energy, especially hydrogen, has heightened the need for efficient storage materials. Perovskites, with their unique structures, show great promise for hydrogen storage and optical uses. To identify promising candidates for hydrogen storage materials, the mechanical, electronic, and optical properties of four ordered vacancy double perovskite structures X2MH6 (Ba2BeH6, Ba2MgH6, Ca2BeH6, and Sr2MgH6) were predicted using density functional theory. These materials were confirmed to be stable, and their hydrogen storage capacity, mechanical properties, electronic structures, and optical performance were thoroughly analyzed. Ca2BeH6 demonstrated the highest gravimetric (6.32%) and volumetric (32.29 g·H2/L) hydrogen storage capacity, showcasing its exceptional potential. It should be noted that the hydrogen storage capacities reported here are theoretical estimates based solely on structural models, and this study does not assess the practical storage and delivery performance of these materials. Its mechanical stiffness and near-isotropic properties further enhance its practicality. Electrical studies revealed all four materials are semiconductors, all of them are direct semiconductors. Optical properties were analyzed via dielectric functions, offering key insights for designing advanced hydrogen storage and optical materials. Full article
(This article belongs to the Special Issue Harvesting Electromagnetic Fields with Nanomaterials)
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15 pages, 17609 KB  
Article
Structural Stability, Mechanical, and Electronic Properties of Al5TM (TM = Mo, Nb, Os, Re, Ru, Ta, Tc, Ti) Intermetallics
by Jiaxiang Yang, Qun Wei, Jing Luo, Meiguang Zhang and Bing Wei
Nanomaterials 2025, 15(16), 1221; https://doi.org/10.3390/nano15161221 - 10 Aug 2025
Viewed by 444
Abstract
Al-based intermetallic compounds possess excellent mechanical and thermal properties, making them promising candidates for high-temperature structural applications. In this study, the structural stability, mechanical properties, and electronic characteristics of Al5TM (TM = Mo, Nb, Os, Re, Ru, Ta, Tc, Ti) intermetallic [...] Read more.
Al-based intermetallic compounds possess excellent mechanical and thermal properties, making them promising candidates for high-temperature structural applications. In this study, the structural stability, mechanical properties, and electronic characteristics of Al5TM (TM = Mo, Nb, Os, Re, Ru, Ta, Tc, Ti) intermetallic compounds were systematically investigated using first-principles calculations based on density functional theory. All alloys exhibit negative formation energy, indicating favorable thermodynamic stability. Elastic constant analysis shows that all compounds satisfy the Born stability criteria, confirming their mechanical stability. Among them, Al5Mo (205.9 GPa), Al5Nb (201.1 GPa), and Al5Ta (204.1 GPa) exhibit relatively high Young’s moduli, while Al5Os, Al5Re, and Al5Ru demonstrate large bulk moduli and good ductility. The high Debye temperatures of Al5Mo (600.5 K) and Al5Nb (606.7 K) suggest excellent thermal stability at elevated temperatures. Electronic structure analysis reveals that all alloys exhibit metallic behavior with no band gap near the Fermi level. The hybridization between TM-d and Al-3p orbitals enhances the covalent bonding between Al and TM atoms. This study provides theoretical guidance for the design and application of high-performance Al-based intermetallic compounds. Full article
(This article belongs to the Special Issue Harvesting Electromagnetic Fields with Nanomaterials)
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13 pages, 6320 KB  
Article
Enhanced Microwave Absorption Performance of Amorphous Co100−xFex Nanoparticles
by Zhen Wang, Chao An, Fenglong Wang, Hongsheng Liang, Zhaoyang Hou, Hao Shen and Hongjing Wu
Nanomaterials 2025, 15(14), 1091; https://doi.org/10.3390/nano15141091 - 14 Jul 2025
Viewed by 362
Abstract
Metallic magnetic materials are extensively used to mitigate electromagnetic interference due to their high Curie temperatures and permeability. However, their high permittivity often hinders impedance-matching effectiveness, limiting their utility. In this study, amorphous cobalt–iron (Co100−xFex) alloy nanoparticles with relatively [...] Read more.
Metallic magnetic materials are extensively used to mitigate electromagnetic interference due to their high Curie temperatures and permeability. However, their high permittivity often hinders impedance-matching effectiveness, limiting their utility. In this study, amorphous cobalt–iron (Co100−xFex) alloy nanoparticles with relatively low permittivity were synthesized using a simple aqueous reduction method at room temperature. The effect of atomic ratio variation on the microwave absorption properties of these nanoparticles was investigated across 2–18 GHz. The amorphous Co100−xFex nanoparticles exhibited excellent electromagnetic wave absorption performance, achieving an effective absorption bandwidth of 5.6 GHz, a matching thickness of 2.60 mm, and a reflection loss of −42 dB. Full article
(This article belongs to the Special Issue Harvesting Electromagnetic Fields with Nanomaterials)
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13 pages, 10081 KB  
Article
Preparation and Gas-Sensitive Properties of SnO2@Bi2O3 Core-Shell Heterojunction Structure
by Jin Liu, Yixin Gao, Yuanyuan Lv, Mengdi Yang, Haoru Guo, Neng Li, Danyang Bai and Anyi Wang
Nanomaterials 2025, 15(2), 129; https://doi.org/10.3390/nano15020129 - 16 Jan 2025
Cited by 2 | Viewed by 1409
Abstract
The SnO2@Bi2O3 core-shell heterojunction structure was designed and synthesized via a hydrothermal method, and the structure and morphology of the synthesized samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). Based [...] Read more.
The SnO2@Bi2O3 core-shell heterojunction structure was designed and synthesized via a hydrothermal method, and the structure and morphology of the synthesized samples were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). Based on the conclusions from XRD and SEM, it can be observed that as the hydrothermal temperature increases, the content of Bi2O3 coated on the surface of SnO2 spheres gradually increases, and the diameter of Bi2O3 nanoparticles also increases. At a hydrothermal temperature of 160 °C, the SnO2 spheres are fully coated with Bi2O3 nanoparticles. This paper investigated the gas-sensitive performance of the SnO2@Bi2O3 sensor towards ethanol gas. Gas sensitivity tests at the optimal operating temperature of 300 °C showed that the composite prepared at 160 °C achieved a response value of 19.7 for 100 ppm ethanol. Additionally, the composite exhibited excellent response to 100 ppm ethanol, with a response time of only 4 s, as well as good repeatability. The excellent gas-sensitive performance of the SnO2@Bi2O3 core-shell heterojunction towards ethanol gas is attributed to its p-n heterojunction material properties. Its successful preparation contributes to the realization of high-performance heterostructure ethanol gas sensors. Full article
(This article belongs to the Special Issue Harvesting Electromagnetic Fields with Nanomaterials)
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17 pages, 4204 KB  
Article
Preparation and Gas-Sensitive Properties of Square–Star-Shaped Leaf-Like BiVO4 Nanomaterials
by Jin Liu, Mengdi Yang, Yuanyuan Lv, Yixin Gao, Danyang Bai, Neng Li, Haoru Guo and Anyi Wang
Nanomaterials 2025, 15(2), 127; https://doi.org/10.3390/nano15020127 - 16 Jan 2025
Cited by 2 | Viewed by 1046
Abstract
In this study, square–star-shaped leaf-like BiVO4 nanomaterials were successfully synthesized using a conventional hydrothermal method. The microstructure, elemental composition, and gas-sensing performance of the materials were thoroughly investigated. Morphological analysis revealed that BiVO4 prepared at different reaction temperatures exhibited square–star-shaped leaf-like [...] Read more.
In this study, square–star-shaped leaf-like BiVO4 nanomaterials were successfully synthesized using a conventional hydrothermal method. The microstructure, elemental composition, and gas-sensing performance of the materials were thoroughly investigated. Morphological analysis revealed that BiVO4 prepared at different reaction temperatures exhibited square–star-shaped leaf-like structures, with the most regular and dense structures formed at 150 °C, exhibiting a large specific surface area of 2.84 m2/g. The response performance of the BiVO4 gas sensors to different target gases was evaluated, and the results showed that the prepared BiVO4 gas sensor exhibited a strong response to NH3. At the optimal operating temperature of 300 °C, its sensitivity to 5 ppm NH3 reached 13.3, with a response time of 28 s and a recovery time of 16 s. Moreover, the gas sensor exhibited excellent repeatability and anti-interference performance. These findings indicate that square–star-shaped leaf-like BiVO4 holds great potential in environmental monitoring and industrial safety detection, offering new insights for the development of high-performance gas sensors. Full article
(This article belongs to the Special Issue Harvesting Electromagnetic Fields with Nanomaterials)
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