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Applied Sciences
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Nanocomposite Materials: Synthesis, Properties and Applications
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Nanocomposite Materials: Synthesis, Properties and Applications

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: closed (30 January 2022) | Viewed by 13998

Special Issue Editor

Dr. Żaneta Świątkowska-Warkocka

E-Mail Website
Guest Editor
The Henryk Niewodniczański Institute of Nuclear Physics Polish Academy of Sciences, Krakow, Poland
Interests: composite materials; magnetic materials; alloys; plasma science; laser synthesis

Special Issue Information

Dear Colleagues,

Nanocomposites containing two or more components are expected not only to combine but also enhance the chemical and physical properties of single components or display new properties and capabilities. Nanocomposites exhibit multifunctional properties such as high mechanical strength, high electrical conductivity, redox reactivity, and catalytic activity. Therefore, they could have wider applications in medicine, biotechnology, electronics, engineering, and catalysis than mono components. The chemical and physical properties of nanocomposites depend on the morphology, chemical arrangement, composition, and interfacial characteristics of their component materials.

This Special Issue of Applied Sciences aims to collect papers covering all the types of nanocomposite materials, such as metal oxides–metal, metal–carbon, and metal oxides–polymers, or organic nanostructures, organic nanostructures, and organic–inorganic hybrid nanostructures. The articles should not only describe the methods of nanocomposites’ synthesis, and their morphology, composition, optical, magnetic, thermal, and mechanical properties, but, importantly, should shed more light upon the relationship between their structure, physical and chemical properties, and possible applications.

Dr. Żaneta Świątkowska-Warkocka
Guest Editor

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. Applied Sciences 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

  • Nanocomposites
  • Synthesis methods
  • Magnetic, optical, thermal, mechanical, and catalytic properties
  • Interfacial interactions
  • Metal, metal-oxides, ceramic, carbon, and polymer materials
  • Organic/inorganic nanostructures.

Published Papers (5 papers)

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Research

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14 pages, 2527 KiB  
Article
Characterization of Magnetite–Silica Magnetic Fluids by Laser Scattering
by Elena N. Velichko, Elina K. Nepomnyashchaya, Kamil G. Gareev, Javier Martínez and Marco C. Maicas
Appl. Sci. 2021, 11(1), 183; https://doi.org/10.3390/app11010183 - 27 Dec 2020
Cited by 22 | Viewed by 2683
Abstract
The paper is concerned with structural, morphological and magnetic properties of magnetite-silica magnetic fluids. The granulometric composition of the magnetic fluids was investigated by scanning and transmission electron microscopy, the phase composition was studied by X-ray diffraction and reflection high-energy electron diffraction, and [...] Read more.
The paper is concerned with structural, morphological and magnetic properties of magnetite-silica magnetic fluids. The granulometric composition of the magnetic fluids was investigated by scanning and transmission electron microscopy, the phase composition was studied by X-ray diffraction and reflection high-energy electron diffraction, and magnetic properties were studied by vibrating sample magnetometry. In order to reveal the particle size distribution, dynamic light scattering and a proposed modification of depolarized dynamic light scattering were employed. The shape and dimensions of magnetic nanoparticles and also their aggregates are described. While the aspect ratio for the aggregates was 0.5–0.99, individual nanoparticles had an average aspect ratio of 0.9 and were nearly spherical. The sedimentation stability of a diluted magnetic fluid was also investigated. When the fluids were diluted 200 times, the stability was partially lost, and the nanoparticles aggregated, thereby forming clusters, and precipitated. Full article
(This article belongs to the Special Issue Nanocomposite Materials: Synthesis, Properties and Applications)
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8 pages, 1779 KiB  
Article
In Situ Polymerization of Chiral Poly(fluorene-alt-benzothiadiazole) Nanocomposites with Enhanced Chirality
by Hongsub Jee, Hyeong-Sub Oh and Jaehyeong Lee
Appl. Sci. 2020, 10(23), 8740; https://doi.org/10.3390/app10238740 - 06 Dec 2020
Cited by 1 | Viewed by 1837
Abstract
Poly(fluorene-alt-benzothiadiazole) (PFBT) is a promising chiral polymer for use in metamaterials and other photonic applications, due to its large chiral optical activity at visible wavelengths. However, its usages are very limited, since it is not readily patternable into microstructures and challenging to apply [...] Read more.
Poly(fluorene-alt-benzothiadiazole) (PFBT) is a promising chiral polymer for use in metamaterials and other photonic applications, due to its large chiral optical activity at visible wavelengths. However, its usages are very limited, since it is not readily patternable into microstructures and challenging to apply to applications. In this paper, we demonstrate photo patterning of chiral PFBT/Achiral SU-8 photoresist to produce high quality structures while retaining the extraordinary chiral optical activity of our previously-reported PFBT/SU8 nanocomposite films. The ability to produce cleanly patterned microfeatures with high chirality may enable wider use of PFBT in chiral metamaterials and other photonic applications. Full article
(This article belongs to the Special Issue Nanocomposite Materials: Synthesis, Properties and Applications)
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12 pages, 6342 KiB  
Article
Synthesis and Characterization of Free-Stand Graphene/Silver Nanowire/Graphene Nano Composite as Transparent Conductive Film with Enhanced Stiffness
by Chuanrui Guo, Yanxiao Li, Yanping Zhu, Chenglin Wu and Genda Chen
Appl. Sci. 2020, 10(14), 4802; https://doi.org/10.3390/app10144802 - 13 Jul 2020
Cited by 5 | Viewed by 2134
Abstract
As-grown graphene via chemical vapor deposition (CVD) has potential defects, cracks, and disordered grain boundaries induced by the synthesis and transfer process. Graphene/silver nanowire/graphene (Gr/AgNW/Gr) sandwich composite has been proposed to overcome these drawbacks significantly as the AgNW network can provide extra connections [...] Read more.
As-grown graphene via chemical vapor deposition (CVD) has potential defects, cracks, and disordered grain boundaries induced by the synthesis and transfer process. Graphene/silver nanowire/graphene (Gr/AgNW/Gr) sandwich composite has been proposed to overcome these drawbacks significantly as the AgNW network can provide extra connections on graphene layers to enhance the stiffness and electrical conductivity. However, the existing substrate (polyethylene terephthalate (PET), glass, silicon, and so on) for composite production limits its application and mechanics behavior study. In this work, a vacuum annealing method is proposed and validated to synthesize the free-stand Gr/AgNW/Gr nanocomposite film on transmission electron microscopy (TEM) grids. AgNW average spacing, optical transmittance, and electrical conductivity are characterized and correlated with different AgNW concentrations. Atomic force microscope (AFM) indentation on the free-stand composite indicates that the AgNW network can increase the composite film stiffness by approximately 460% with the AgNW concentration higher than 0.6 mg/mL. Raman spectroscopy shows the existence of a graphene layer and the disturbance of the AgNW network. The proposed method provides a robust way to synthesize free-stand Gr/AgNW/Gr nanocomposite and the characterization results can be utilized to optimize the nanocomposite design for future applications. Full article
(This article belongs to the Special Issue Nanocomposite Materials: Synthesis, Properties and Applications)
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11 pages, 3635 KiB  
Article
Magnetoelectric Plasma Preparation of Silicon-Carbon Nanocomposite as Anode Material for Lithium Ion Batteries
by Fangfang Wang, Maochuan Gao, Ruoyu Hong and Xuesong Lu
Appl. Sci. 2020, 10(8), 2672; https://doi.org/10.3390/app10082672 - 13 Apr 2020
Cited by 4 | Viewed by 2573
Abstract
A high-performance silicon-carbon nanocomposite facilely prepared by one-step magnetoelectric plasma pyrolysis of the mixture of methane, silane, and hydrogen is proposed for lithium-ion batteries. The ratio of silane, methane, and hydrogen was studied to optimize the properties of the composite. When the ratio [...] Read more.
A high-performance silicon-carbon nanocomposite facilely prepared by one-step magnetoelectric plasma pyrolysis of the mixture of methane, silane, and hydrogen is proposed for lithium-ion batteries. The ratio of silane, methane, and hydrogen was studied to optimize the properties of the composite. When the ratio of hydrogen/silane/methane is 1:1:3, the composite is composed of spherical Si nanoparticles that uniformly attach to the surface of the tremelliform carbon nanosheets framework, in which the tremelliform carbon nanosheets can effectively resist the volumetric change of the Si nanoparticles during the cycles and serve as electronic channels. The silicon-carbon nanocomposite exhibits a high reversible capacity (1007 mAh g−1 after 50 cycles), a low charge transfer resistance, and an excellent rate performance. In addition, the proposed process for synthesizing silicon-carbon nanocomposite without expensive materials or toxic reagents is an environmentally friendly and cost-effective method for mass production. Full article
(This article belongs to the Special Issue Nanocomposite Materials: Synthesis, Properties and Applications)
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Review

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15 pages, 4709 KiB  
Review
Bimetal CuFe Nanoparticles—Synthesis, Properties, and Applications
by Zaneta Swiatkowska-Warkocka
Appl. Sci. 2021, 11(5), 1978; https://doi.org/10.3390/app11051978 - 24 Feb 2021
Cited by 10 | Viewed by 3656
Abstract
Bimetal CuFe (copper-iron) nanoparticles, which are based on the earth-abundant and inexpensive metals, have generated a great deal of interest in recent years. The possible modification of the chemical and physical properties of these nanoparticles by changing their size, structure, and composition has [...] Read more.
Bimetal CuFe (copper-iron) nanoparticles, which are based on the earth-abundant and inexpensive metals, have generated a great deal of interest in recent years. The possible modification of the chemical and physical properties of these nanoparticles by changing their size, structure, and composition has contributed to the development of material science. At the same time, the strong tendency of these elements to oxidize under atmospheric conditions makes the synthesis of pure bimetallic CuFe nanoparticles still a great challenge. This review reports on different synthetic approaches to bimetallic CuFe nanoparticles and bimetallic CuFe nanoparticles supported on various materials (active carbide, carbide nanotubes, silica, graphite, cellulose, mesoporous carbide), their structure, physical, and chemical properties, as well as their utility as catalysts, including electrocatalysis and photocatalysis. Full article
(This article belongs to the Special Issue Nanocomposite Materials: Synthesis, Properties and Applications)
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