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Nanomaterials
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Recent Progress in Rare-Earth Functional Nanomaterials
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Recent Progress in Rare-Earth Functional Nanomaterials

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

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 1861

Special Issue Editors

Prof. Dr. Fan Wu

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Guest Editor
Department of Chemistry, School of Science, Tianjin University, Tianjin 300072, China
Interests: rare earth; nanocomposites; electromagnetic absorption
Dr. Yujing Zhang

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Guest Editor
School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
Interests: rare earth; magnetic materials; nanocomposites; electromagnetic absorption

Special Issue Information

Dear Colleagues,

Rare-earth elements are valuable strategic resources known for their unique physical and chemical properties. Nanostructured rare-earth materials, with their exceptional size, structure, and properties, exhibit remarkable functionalities that surpass conventional materials. In addition, these nanomaterials possess distinct optical, electrical, thermal, and magnetic properties that create novel characteristics. In particular, they exhibit excellent properties in energy conversion, nanomagnetism, catalysis, luminescence, and hydrogen storage.

In this Special Issue, we will delve into the latest research findings, development trends, and practical applications of rare-earth functional materials, aiming to gain further understanding of their unique value. We welcome contributions devoted to nanostructured rare-earth materials. Research areas may include (but are not limited to) the following:

  1. Design and preparation of rare earth-based, electromagnetic wave-absorbing nanomaterials;
  2. High-performance rare earth-based magnetic materials;
  3. Rare earth-based hydrogen storage materials and their applications;
  4. Precision processing of rare earth precursors and polishing materials;
  5. Rare-earth luminescent materials and photoelectric devices;
  6. New testing and characterization methods in rare-earth nanomaterials;
  7. Review articles on the progress of rare earth-based, electromagnetic wave-absorbing nanomaterials.

Prof. Dr. Fan Wu
Dr. Yujing Zhang
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 2900 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

  • rare earth
  • nanomaterials
  • nanocomposites
  • electromagnetic wave absorption
  • magnetism
  • characterization
  • mechanism

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

Published Papers (2 papers)

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16 pages, 8013 KiB  
Article
Efficient Design of Broadband and Low-Profile Multilayer Absorbing Materials on Cobalt–Iron Magnetic Alloy Doped with Rare Earth Element
by Sixing Liu, Yilin Zhang, Hao Wang, Fan Wu, Shifei Tao and Yujing Zhang
Nanomaterials 2024, 14(13), 1107; https://doi.org/10.3390/nano14131107 - 27 Jun 2024
Viewed by 672
Abstract
Magnetic metal absorbing materials have exhibited excellent absorptance performance. However, their applications are still limited in terms of light weight, low thickness and wide absorption bandwidth. To address this challenge, we design a broadband and low-profile multilayer absorber using cobalt–iron (CoFe) alloys doped [...] Read more.
Magnetic metal absorbing materials have exhibited excellent absorptance performance. However, their applications are still limited in terms of light weight, low thickness and wide absorption bandwidth. To address this challenge, we design a broadband and low-profile multilayer absorber using cobalt–iron (CoFe) alloys doped with rare earth elements (REEs) lanthanum (La) and Neodymium (Nd). An improved estimation of distribution algorithm (IEDA) is employed in conjunction with a mathematical model of multilayer absorbing materials (MAMs) to optimize both the relative bandwidth with reflection loss (RL) below −10 dB and the thickness. Firstly, the absorption performance of CoFe alloys doped with La/Nd with different contents is analysed. Subsequently, IEDA is introduced based on a mathematical model to achieve an optimal MAM design that obtains a balance between absorption bandwidth and thickness. To validate the feasibility of our proposed method, a triple-layer MAM is designed and optimized to exhibit wide absorption bandwidth covering C, X, and Ku bands (6.16–12.82 GHz) and a total thickness of 2.39 mm. Then, the electromagnetic (EM) absorption mechanisms of the triple-layer MAMs are systematically investigated. Finally, the triple-layer sample is further fabricated and measured. The experimental result is in good agreement with the simulated result. This paper presents a rapid and efficient optimization method for designing MAMs, offering promising prospects in microwave applications, such as radar-stealth technology, EM shielding, and reduced EM pollution for electronic devices. Full article
(This article belongs to the Special Issue Recent Progress in Rare-Earth Functional Nanomaterials)
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21 pages, 4939 KiB  
Article
Size-Dependent High-Pressure Behavior of Pure and Eu3+-Doped Y2O3 Nanoparticles: Insights from Experimental and Theoretical Investigations
by André Luis de Jesus Pereira, Juan Ángel Sans, Óscar Gomis, David Santamaría-Pérez, Sudeshna Ray, Armstrong Godoy, Jr., Argemiro Soares da Silva-Sobrinho, Plácida Rodríguez-Hernández, Alfonso Muñoz, Catalin Popescu and Francisco Javier Manjón
Nanomaterials 2024, 14(8), 721; https://doi.org/10.3390/nano14080721 - 20 Apr 2024
Viewed by 892
Abstract
We report a joint high-pressure experimental and theoretical study of the structural, vibrational, and photoluminescent properties of pure and Eu3+-doped cubic Y2O3 nanoparticles with two very different average particle sizes. We compare the results of synchrotron X-ray diffraction, [...] Read more.
We report a joint high-pressure experimental and theoretical study of the structural, vibrational, and photoluminescent properties of pure and Eu3+-doped cubic Y2O3 nanoparticles with two very different average particle sizes. We compare the results of synchrotron X-ray diffraction, Raman scattering, and photoluminescence measurements in nanoparticles with ab initio density-functional simulations in bulk material with the aim to understand the influence of the average particle size on the properties of pure and doped Y2O3 nanoparticles under compression. We observe that the high-pressure phase behavior of Y2O3 nanoparticles depends on the average particle size, but in a different way to that previously reported. Nanoparticles with an average particle size of ~37 nm show the same pressure-induced phase transition sequence on upstroke and downstroke as the bulk sample; however, nanoparticles with an average particle size of ~6 nm undergo an irreversible pressure-induced amorphization above 16 GPa that is completed above 24 GPa. On downstroke, 6 nm nanoparticles likely consist of an amorphous phase. Full article
(This article belongs to the Special Issue Recent Progress in Rare-Earth Functional Nanomaterials)
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