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Nanomaterials
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Carbon Nanocomposites: Synthesis, Properties and Applications
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Carbon Nanocomposites: Synthesis, Properties and Applications

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "2D and Carbon Nanomaterials".

Deadline for manuscript submissions: closed (31 July 2023) | Viewed by 7713

Special Issue Editors

Dr. Xiao-Wen Lei

E-Mail Website
Guest Editor
1. Department of Mechanical Engineering Faculty of Engineering, University of Fukui, Fukui, Japan
2. Japan Science and Technology Agency (JST), Saitama, Japan
Interests: nanomechanics
Prof. Dr. Toshiaki Natsuki

E-Mail Website
Guest Editor
1. Institute for Fiber Engineering (IFES), Shinshu University, 3-15-1 Tokida, Ueda 386-8567, Japan
2. Faculty of Textile Science and Technology, Shinshu University, 3-15-1 Tokida, Ueda 386-8567, Japan
Interests: nanotechnology; atom/molecule manipulation; surface science; neuromorphic network materials; multiple-probe SPMs
Dr. Jin-Xing Shi

E-Mail Website
Guest Editor
Department of Production Systems Engineering and Sciences, Komatsu University, Nu 1-3 Shicyomachi, Komatsu 923-8511, Japan
Interests: design engineering; solid mechanics; computational mechanics; composite structures; carbon nanomaterials

Special Issue Information

Dear Colleagues,

Carbon nanomaterials, mainly composed of sp2 and sp3, are hybridized carbon atoms regulated into a monolithic network. Because of their unique structure and size, they are endowed with extraordinary mechanical, electrical, thermal, optical, adsorption, and other significant properties that makes them ideal. In particular, designing and preparing carbon nanocomposites is an effective way to further improve the application performance of carbon nanomaterials and expand their application fields. Recently, combined with carbon nanomaterials such as graphene and carbon nanotubes, a variety of new methods for the synthesis of functional carbon nanocomposites have been developed, and the applications of these materials in the fields of mechanical properties, adsorption, energy storage, and catalysis have been explored.

We invite authors to contribute to this Special Issue with original research articles and comprehensive review articles focusing on the latest theoretical development and practical application of carbon nanocomposites in synthesis and properties. The goal of this Special Issue is to attract academic and industrial researchers to further improve the properties of existing carbon nanocomposites and propose new ideas for future applications and new technologies through continuous in-depth research on existing carbon nanocomposites.

Dr. Xiaowen Lei
Prof. Dr. Toshiaki Natsuki
Dr. Jinxing Shi
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

  • carbon nanocomposite
  • carbon nanotubes
  • graphene
  • carbon nanofiber
  • facile synthesis
  • adsorption
  • mechanical properties
  • sensor
  • supercapacitor
  • catalyst

Published Papers (5 papers)

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Research

13 pages, 4651 KiB  
Article
Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper
by Jih-Hsin Liu and Yao-Sheng Huang
Nanomaterials 2023, 13(18), 2497; https://doi.org/10.3390/nano13182497 - 5 Sep 2023
Viewed by 1039
Abstract
This study aims to exploit the distinctive properties of carbon nanotube materials, which are particularly pronounced at the microscopic scale, by deploying fabrication techniques that allow their features to be observed macroscopically. Specifically, we aim to create a semiconductor device that exhibits flexibility [...] Read more.
This study aims to exploit the distinctive properties of carbon nanotube materials, which are particularly pronounced at the microscopic scale, by deploying fabrication techniques that allow their features to be observed macroscopically. Specifically, we aim to create a semiconductor device that exhibits flexibility and the ability to modulate its electromagnetic wave absorption frequency by means of biasing. Initially, we fabricate a sheet of carbon nanotubes through a vacuum filtration process. Subsequently, phosphorus and boron elements are separately doped into the nanotube sheet, enabling it to embody the characteristics of a PN diode. Measurements indicate that, in addition to the fundamental diode’s current–voltage relationship, the device also demonstrates intriguing transmission properties under the TEM mode of electromagnetic waves. It exhibits a frequency shift of approximately 2.3125 GHz for each volt of bias change. The final result is a lightweight and flexible carbon-based semiconductor microwave filter, which can conform to curved surfaces. This feat underscores the potential of such materials for innovative and effective electromagnetic wave manipulation. Full article
(This article belongs to the Special Issue Carbon Nanocomposites: Synthesis, Properties and Applications)
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12 pages, 7637 KiB  
Article
Silver Nanoparticle/Carbon Nanotube Hybrid Nanocomposites: One-Step Green Synthesis, Properties, and Applications
by Jun Natsuki and Toshiaki Natsuki
Nanomaterials 2023, 13(8), 1297; https://doi.org/10.3390/nano13081297 - 7 Apr 2023
Cited by 6 | Viewed by 2029
Abstract
Hybrid nanocomposites of silver nanoparticles and multiwalled carbon nanotubes (AgNPs/MWCNTs) were successfully synthesized by a green one-step method without using any organic solvent. The synthesis and attachment of AgNPs onto the surface of MWCNTs were performed simultaneously by chemical reduction. In addition to [...] Read more.
Hybrid nanocomposites of silver nanoparticles and multiwalled carbon nanotubes (AgNPs/MWCNTs) were successfully synthesized by a green one-step method without using any organic solvent. The synthesis and attachment of AgNPs onto the surface of MWCNTs were performed simultaneously by chemical reduction. In addition to their synthesis, the sintering of AgNPs/MWCNTs can be carried out at room temperature. The proposed fabrication process is rapid, cost efficient, and ecofriendly compared with multistep conventional approaches. The prepared AgNPs/MWCNTs were characterized using transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The transmittance and electrical properties of the transparent conductive films (TCF_Ag/CNT) fabricated using the prepared AgNPs/MWCNTs were characterized. The results showed that the TCF_Ag/CNT film has excellent properties, such as high flexible strength, good high transparency, and high conductivity, and could therefore be an effective substitute for conventional indium tin oxide (ITO) films with poor flexibility. Full article
(This article belongs to the Special Issue Carbon Nanocomposites: Synthesis, Properties and Applications)
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16 pages, 3533 KiB  
Article
Efficient Mesoporous MgO/g-C3N4 for Heavy Metal Uptake: Modeling Process and Adsorption Mechanism
by Rasha A. AbuMousa, Lotfi Khezami, Mukhtar Ismail, Mohamed Ali Ben Aissa, Abueliz Modwi and Mohamed Bououdina
Nanomaterials 2022, 12(22), 3945; https://doi.org/10.3390/nano12223945 - 9 Nov 2022
Cited by 19 | Viewed by 1470
Abstract
Removing toxic metal ions arising from contaminated wastewaters caused by industrial effluents with a cost-effective method tackles a serious concern worldwide. The adsorption process onto metal oxide and carbon-based materials offers one of the most efficient technologies adopted for metal ion removal. In [...] Read more.
Removing toxic metal ions arising from contaminated wastewaters caused by industrial effluents with a cost-effective method tackles a serious concern worldwide. The adsorption process onto metal oxide and carbon-based materials offers one of the most efficient technologies adopted for metal ion removal. In this study, mesoporous MgO/g-C3N4 sorbent is fabricated by ultrasonication method for the uptake Pb (II) and Cd (II) heavy metal ions from an aqueous solution. The optimum conditions for maximum uptake: initial concentration of metal ions 250 mg g−1, pH = 5 and pH = 3 for Pb++ and Cd++, and a 60 mg dose of adsorbent. In less than 50 min, the equilibrium is reached with a good adsorption capacity of 114 and 90 mg g−1 corresponding to Pb++ and Cd++, respectively. Moreover, the adsorption isotherm models fit well with the Langmuir isotherm, while the kinetics model fitting study manifest a perfect fit with the pseudo-second order. The as fabricated mesoporous MgO/g-C3N4 sorbent exhibit excellent Pb++ and Cd++ ions uptake and can be utilized as a potential adsorbent in wastewater purification. Full article
(This article belongs to the Special Issue Carbon Nanocomposites: Synthesis, Properties and Applications)
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13 pages, 2524 KiB  
Article
Hysteresis in Heat Capacity of MWCNTs Caused by Interface Behavior
by Nadezhda Bobenko, Valeriy Egorushkin and Alexander Ponomarev
Nanomaterials 2022, 12(18), 3139; https://doi.org/10.3390/nano12183139 - 10 Sep 2022
Viewed by 1200
Abstract
The paper is concerned with the study of structural disorder as well as the emergence and causes of heat capacity hysteresis in multiwall carbon nanotubes. The investigation methods are X-ray diffraction analysis, Raman spectroscopy, transmission electron microscopy, and calorimetric tests: thermogravimetric analysis, differential [...] Read more.
The paper is concerned with the study of structural disorder as well as the emergence and causes of heat capacity hysteresis in multiwall carbon nanotubes. The investigation methods are X-ray diffraction analysis, Raman spectroscopy, transmission electron microscopy, and calorimetric tests: thermogravimetric analysis, differential scanning calorimetry, and the thermal relaxation method for heat capacity hysteresis. Multiwall carbon nanotubes are shown to be composed of one or several types of zigzag–armchair domains. The domain structure of nanotube samples is responsible for the generation of uniaxial elastic microstrains and viscoelastic bending strains at domain interfaces. The thermomechanical behavior of interfaces is the chief cause of temperature hysteresis of heat capacity. The number of hystereses corresponds to the number of domain types in the structure, and values of hysteresis are determined by the crystallite size, thermal conductivity, and normal temperature distribution of strain. The found mechanism of heat capacity hysteresis can be helpful in preventing jumps in thermal properties and managing thermal memory in multiwall carbon nanotubes. Full article
(This article belongs to the Special Issue Carbon Nanocomposites: Synthesis, Properties and Applications)
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7 pages, 3443 KiB  
Communication
A First Assessment of Carbon Nanotubes Grown on Oil-Well Cement via Chemical Vapor Deposition
by Luca Lavagna, Mattia Bartoli, Simone Musso, Daniel Suarez-Riera, Alberto Tagliaferro and Matteo Pavese
Nanomaterials 2022, 12(14), 2346; https://doi.org/10.3390/nano12142346 - 9 Jul 2022
Cited by 1 | Viewed by 1389
Abstract
In this study, carbon nanotubes (CNTs) were synthesized on an oil-well cement substrate using the chemical vapor deposition (CVD) method. The effect of synthesis process on cement was investigated in depth. In this regard, FE-SEM, RAMAN and X-Ray spectroscopy were used to characterize [...] Read more.
In this study, carbon nanotubes (CNTs) were synthesized on an oil-well cement substrate using the chemical vapor deposition (CVD) method. The effect of synthesis process on cement was investigated in depth. In this regard, FE-SEM, RAMAN and X-Ray spectroscopy were used to characterize the cement before and after the synthesis process to reveal the modifications to the cementitious matrix and some unique morphological features of CNTs. Full article
(This article belongs to the Special Issue Carbon Nanocomposites: Synthesis, Properties and Applications)
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