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C
Special Issues
Advanced in Low Dimensional Carbon: Processing and Applications
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Advanced in Low Dimensional Carbon: Processing and Applications

A special issue of C (ISSN 2311-5629). This special issue belongs to the section "Carbon Materials and Carbon Allotropes".

Deadline for manuscript submissions: closed (25 August 2023) | Viewed by 7511

Special Issue Editor

Prof. Dr. Yong X. Gan

E-Mail Website
Guest Editor
Department of Mechanical Engineering, California State Polytechnic University, Pomona, CA 91768, USA
Interests: nanotechnology; materials processing; manufacturing; mechanical design
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Low-dimensional carbon refers to a broad category of carbon materials including carbon black, carbon nanotubes, graphene, oxidized graphene, buckyball carbon, carbon fibers, glassy carbon, carbon papers, and diamond particles. They are extensively used in our daily life as absorbents, catalysts, energy storage components, and flexible devices. This Special Issue deals with recent research and development in the fields of processing and applications of various low-dimensional carbon materials. Submissions of technical briefs, research papers, and review articles in the following areas are welcome:

  • Carbon particles;
  • Nanofibers;
  • Carbon nanotubes;
  • Carbon buckyballs;
  • Carbon papers;
  • Diamond particles;
  • Graphite flakes;
  • Carbon-containing textiles;
  • Flexible sensors;
  • Wearable devices;
  • Low-dimensional carbon for battery electrodes;
  • Catalyst supports from low-dimensional carbon;
  • Porous carbon;
  • Glassy carbon;
  • Graphene in solar cells;
  • Implants from low-dimensional carbon materials;
  • Biomedical applications of low-dimensional carbon materials;
  • Carbon nanotube for high mechanical performance applications;
  • Graphene as transparent materials;
  • Low-dimensional carbon as additive in composites;
  • Low-dimensional carbon and/or diamond particles as lubricants and abrasives;
  • High-performance carbon absorbents.

Dr. Yong X. Gan
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. C is an international peer-reviewed open access quarterly 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 1600 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.

Published Papers (4 papers)

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Research

17 pages, 9700 KiB  
Article
Graphene Oxide: A Comparison of Reduction Methods
by Natália Garrote de Barros, Abel Cardoso Gonzaga Neto, Kleber Bitencourt Vaccioli, Hugo Rafael Vallejo Angulo, Leonardo Gondim de Andrade e Silva, Samuel Marcio Toffoli and Ticiane Sanches Valera
C 2023, 9(3), 73; https://doi.org/10.3390/c9030073 - 27 Jul 2023
Cited by 5 | Viewed by 2341
Abstract
This paper presents a comparison of traditional thermal and chemical reduction methods with more recent ionizing radiation reduction via gamma rays and electron beams (e-beams). For GO, all synthesis protocols were adapted to increase production scale and are a contribution of this work. [...] Read more.
This paper presents a comparison of traditional thermal and chemical reduction methods with more recent ionizing radiation reduction via gamma rays and electron beams (e-beams). For GO, all synthesis protocols were adapted to increase production scale and are a contribution of this work. The typical Raman D-band of the GO was prominent (ID/IG ratio increased sixfold). When comparing the GO reduction techniques, dramatic differences in efficiency and GO particle characteristics were observed. Although thermal and chemical reduction are effective reduction methods, as shown through the use of FTIR spectroscopy and the C/O ratio from EDS chemical analysis, the thermal process renders great weight losses, whereas chemical processing may involve the use of hazardous chemical compounds. On the other hand, comparing the gamma rays and e-beam for 80 kGy, the Raman spectra and chemical analysis suggested that the e-beam caused a greater GO reduction: C/O ratio from EDS of 5.4 and 4.1, respectively. In addition to being fast and effective, ionizing radiation reduction processes allow easier control of the reduction degree by adjusting the radiation dose. When the dose increased from 40 to 80 kGy, the Raman spectra and EDS showed that the ID/IG and C/O ratios increased by 15 and 116%, respectively. Full article
(This article belongs to the Special Issue Advanced in Low Dimensional Carbon: Processing and Applications)
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17 pages, 6671 KiB  
Article
Temperature- and Pressure-Reducing Regimes in the Growth Cell of HPHT Diamonds, Optimal for Preserving Crystal Integrity after Growth Completion
by Nikolay I. Alekseyev, Anton P. Broyko, Ivan K. Khmelnitskiy, Alexander V. Kolyadin, Vagarshak M. Aivazyan and Ivan V. Oreshko
C 2023, 9(2), 52; https://doi.org/10.3390/c9020052 - 18 May 2023
Viewed by 1466
Abstract
With its exceptional strength characteristics, diamond has some mechanical drawbacks, significant brittleness being among them. In particular, some HPHT-grown diamonds crack when the extreme parameters inherent to the diamond growth process gradually decrease. The cracking is caused by excessive stress due to the [...] Read more.
With its exceptional strength characteristics, diamond has some mechanical drawbacks, significant brittleness being among them. In particular, some HPHT-grown diamonds crack when the extreme parameters inherent to the diamond growth process gradually decrease. The cracking is caused by excessive stress due to the poor plastic properties of the diamond growth catalytic medium at certain stages of reducing the pressure and the temperature. An insulating container with the growth cell and heating circuit fragment inside can also make a significant contribution to the probability of cracking. This paper considers the possibility of minimizing the mechanical stress in the growth cell and, consequently, in the diamond crystal by choosing the optimal trajectory for the decrease in the pressure and temperature from diamond growth conditions to normal conditions. Full article
(This article belongs to the Special Issue Advanced in Low Dimensional Carbon: Processing and Applications)
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14 pages, 4486 KiB  
Article
Ab Initio Study of Optical Properties of Hybrid Films Based on Bilayer Graphene and Single-Walled Carbon Nanotubes
by Michael M. Slepchenkov, Pavel V. Barkov, Dmitry A. Kolosov and Olga E. Glukhova
C 2023, 9(2), 51; https://doi.org/10.3390/c9020051 - 18 May 2023
Viewed by 1242
Abstract
In recent years, the possibility of combining graphene and carbon nanotubes has attracted much attention from researchers attempting to obtain new multifunctional hybrid materials with promising properties. Optoelectronics shows potential as a field of application for such hybrid structures. The variety of existing [...] Read more.
In recent years, the possibility of combining graphene and carbon nanotubes has attracted much attention from researchers attempting to obtain new multifunctional hybrid materials with promising properties. Optoelectronics shows potential as a field of application for such hybrid structures. The variety of existing structural configurations of graphene-nanotube hybrids requires preliminary detailed studies of their optical properties by computer simulation methods. In this paper, we consider island-type graphene-nanotube hybrid films formed by AB-stacked bilayer graphene and single-walled carbon nanotubes (SWCNTs). In this case, bilayer graphene is located above the surface of the nanotube, forming areas with an increased density of carbon atoms, creating so-called “islands.” To meet the conditions of a real experiment, we chose chiral SWCNTs (12,6) with a diameter of 1.2 nm, which are most often synthesized in real experiments. All constructed atomistic models of bilayer graphene-chiral SWCNT films were tested for thermodynamic stability at room temperature and proved their suitability for research. Using Kubo-Greenwood formalism, we calculated the complex optical conductivity tensor and absorbance coefficient in the wavelengths of ultraviolet, visible, and near-infrared radiations. The photocurrent spectra are calculated based on the obtained absorption spectra and solar radiation spectra on the earth’s surface (AM1.5) and outside the earth’s atmosphere (AM0). The results of calculations revealed regularities in the influence of structural parameters (nanotube diameter, graphene width) on the optical and optoelectronic properties of graphene-chiral SWCNT (12,6) with an island structure. Full article
(This article belongs to the Special Issue Advanced in Low Dimensional Carbon: Processing and Applications)
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10 pages, 10516 KiB  
Article
Synthesis of Graphene Quantum Dots Coupled to Au Nanoparticles: A Facile and Versatile Route Using Different Carbon Sources
by David Ibarra, Oxana Kharissova and Idalia Gomez
C 2023, 9(2), 45; https://doi.org/10.3390/c9020045 - 27 Apr 2023
Cited by 1 | Viewed by 1967
Abstract
A top-down synthesis of graphene quantum dots (GQD) was carried out by hydrothermal method from different carbon sources (graphene, multi-walled carbon nanotubes, and black carbon) and H2O2 as an oxidizing agent, with an N source added in the reaction to [...] Read more.
A top-down synthesis of graphene quantum dots (GQD) was carried out by hydrothermal method from different carbon sources (graphene, multi-walled carbon nanotubes, and black carbon) and H2O2 as an oxidizing agent, with an N source added in the reaction to modify the chemical surface of the GQD, giving rise to the nanomaterial N-GQD. The modified chemical surface of N-GQD partially allowed the nucleation and coupling of gold nanoparticles from a HAuCl4 solution. The X-ray diffraction spectrogram confirms the amorphization of the precursor materials, while the functionalized surface of N-GQD was characterized through UV-Vis, Fourier transform infrared, and photoluminescense spectrometry; TEM and FE-SEM show particle sizes between 8 and 15 nm. N-GQD@AuNP presence can be confirmed by UV-Vis spectroscopy and TEM analysis, showing partial coupling and nanoparticle nucleation of Au in the structure with particle sizes between 20 and 40 nm. Full article
(This article belongs to the Special Issue Advanced in Low Dimensional Carbon: Processing and Applications)
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