New Insights into Plasma-Induced Synthesis of 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 (30 June 2025) | Viewed by 690

Special Issue Editor


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Guest Editor
Department of Physics, University of Montreal, Montreal, QC, Canada
Interests: plasma; nanomaterials; gas-phase synthesis; liquid-phase synthesis

Special Issue Information

Dear Colleagues,

The plasma-based synthesis of nanomaterials has become a critical technique in modern materials science, providing unique advantages such as precise control over particle size, morphology, and chemical composition. Since its early use in thin film deposition and surface treatment, plasma technology has evolved to enable the scalable production of high-quality nanomaterials. These developments are particularly important for applications in energy storage, catalysis, electronics, and biotechnology, where the unique properties of nanomaterials can drive significant innovation.

The aim of this Special Issue is to highlight the latest advancements and breakthroughs in the synthesis of nanomaterials using plasma-based techniques. The scope includes experimental research, theoretical studies, and reviews on topics that involve gas–phase and liquid–phase syntheses. We are particularly interested in contributions that focus on novel processes, process optimization, mechanism understanding, and new applications enabled by plasma-fabricated nanomaterials.

This Special Issue seeks to attract high-quality original research articles, comprehensive reviews, and cutting-edge communications. We welcome contributions that explore the plasma-assisted synthesis of a wide range of nanomaterials, including, but not limited to, nanoparticles, nanowires, and nanotubes. Papers discussing interdisciplinary approaches, such as combining plasma techniques with other nanofabrication methods, are highly encouraged. Submissions that provide insights into the scaling-up of plasma processes for industrial applications or discuss emerging applications in areas such as sustainable energy, biomedical devices, and environmental remediation will be given special consideration.

Dr. Ahmad Hamdan
Guest Editor

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Keywords

  • plasma
  • nanomaterials
  • gas-phase synthesis
  • liquid-phase synthesis

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Published Papers (1 paper)

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Research

14 pages, 3062 KiB  
Article
Nanosized Anisotropic Sm–Fe–N Particles with Metastable TbCu7-Type Structures Prepared by an Induction Thermal Plasma Process
by Yusuke Hirayama, Jian Wang, Masaya Shigeta, Shunsuke Tsurumi, Makoto Sugimoto, Zheng Liu, Kenta Takagi and Kimihiro Ozaki
Nanomaterials 2025, 15(13), 1045; https://doi.org/10.3390/nano15131045 - 5 Jul 2025
Viewed by 318
Abstract
TbCu7-type Sm-based compounds can be produced in bulk and potentially surpass Nd2Fe14B as permanent magnets. However, as the processes to prepare anisotropic magnetic particles are limited, the full potential of TbCu7-type Sm-based compounds cannot be [...] Read more.
TbCu7-type Sm-based compounds can be produced in bulk and potentially surpass Nd2Fe14B as permanent magnets. However, as the processes to prepare anisotropic magnetic particles are limited, the full potential of TbCu7-type Sm-based compounds cannot be exploited. In this study, metastable TbCu7-type phases of anisotropic Sm–Fe–N ultrafine particles were prepared using the low-oxygen induction thermal plasma (LO-ITP) process. X-ray diffraction analysis revealed that the obtained TbCu7-type Sm–Fe alloy nanoparticles exhibited a c/a value of 0.8419, with an Fe/Sm atomic ratio of ~8.5. After nitrogenation, the obtained Sm–Fe–N nanoparticles were aligned under an external magnetic field, indicating that each alloy particle exhibited anisotropic magnetic properties. A substantially high degree of alignment of 91 ± 2% was achieved, quantitatively estimated via pole figure measurements. Numerical analysis following Sm–Fe nanoparticle formation showed that, compared with Fe condensation, Sm condensation persisted even at low temperatures, because of a significant difference in vapor pressure between Sm and Fe. Though this led to a relatively large compositional distribution of Sm within particles with a Sm concentration of 9–12 at%, the preparation of single-phase TbCu7-type Sm–Fe–N particles could be facilitated by optimizing several parameters during the LO-ITP process. Full article
(This article belongs to the Special Issue New Insights into Plasma-Induced Synthesis of Nanomaterials)
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