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Carbon Nanostructures: Structure, Properties and Applications
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Carbon Nanostructures: Structure, Properties and Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Carbon Materials".

Deadline for manuscript submissions: closed (20 September 2022) | Viewed by 5108

Special Issue Editor

Prof. Dr. Anna Lähde

E-Mail Website
Guest Editor
Department of Environmental and Biological Sciences, University of Eastern Finland, 70210 Kuopio, Finland
Interests: bio-based carbon structures; formation and synthesis; electrochemical applications; wastewater treatment

Special Issue Information

Dear Colleagues,

In the last decade, carbon nanostructures have attracted the scientific world due to their numerous applications and unique properties. Advanced carbon nanostructures have a wide range of applications and possible applications which are researched worldwide due to their incredible potential. These nanomaterials require intensive studies of dimensional effects for further application in modern technologies. From graphene and carbon quantum dots to carbon-based composites, they all can be considered advanced carbon materials when they are researched or used for a specific application.

MPDI Materials (ISSN 1996-1944) is pleased to announce an open access Special Issue on "Carbon Nanostructures: Formation, Properties and Applications". We happily welcome your submissions. This Special Issue is devoted to the description of technologies for the formation of a wide range of carbon nanostructures, as well as their properties.

Prof. Dr. Anna Lähde
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. Materials 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 2600 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 nanostructures
  • bio-based carbon structures
  • graphene
  • graphene-like structures
  • graphitic structures
  • carbon nanodots
  • carbon nanotubes and tubular structures
  • formation and synthesis of the structures
  • electrochemical properties
  • adsorbent
  • high surface area materials

Published Papers (3 papers)

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Research

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17 pages, 6300 KiB  
Article
Microstructure Evolution and Its Correlation with Performance in Nitrogen-Containing Porous Carbon Prepared by Polypyrrole Carbonization: Insights from Hybrid Calculations
by Shanshan Li, Fang Bian, Xinge Wu, Lele Sun, Hongwei Yang, Xiangying Meng and Gaowu Qin
Materials 2022, 15(10), 3705; https://doi.org/10.3390/ma15103705 - 22 May 2022
Cited by 2 | Viewed by 1541
Abstract
The preparation of nitrogen-containing porous carbon (NCPC) materials by controlled carbonization is an exciting topic due to their high surface area and good conductivity for use in the fields of electrochemical energy storage and conversion. However, the poor controllability of amorphous porous carbon [...] Read more.
The preparation of nitrogen-containing porous carbon (NCPC) materials by controlled carbonization is an exciting topic due to their high surface area and good conductivity for use in the fields of electrochemical energy storage and conversion. However, the poor controllability of amorphous porous carbon prepared by carbonization has always been a tough problem due to the unclear carbonation mechanism, which thus makes it hard to reveal the microstructure–performance relationship. To address this, here, we comprehensively employed reactive molecular dynamics (ReaxFF-MD) simulations and first-principles calculations, together with machine learning technologies, to clarify the carbonation process of polypyrrole, including the deprotonation and formation of pore structures with temperature, as well as the relationship between microstructure, conductance, and pore size. This work constructed ring expressions for PPy thermal conversion at the atomic level. It revealed the structural factors that determine the conductivity and pore size of carbonized products. More significantly, physically interpretable machine learning models were determined to quantitatively express structure factors and performance structure–activity relationships. Our study also confirmed that deprotonation preferentially occurred by desorbing the dihydrogen atom on nitrogen atoms during the carbonization of PPy. This theoretical work clearly reproduces the microstructure evolution of polypyrrole on an atomic scale that is hard to do via experimentation, thus paving a new way to the design and development of nitrogen-containing porous carbon materials with controllable morphology and performance. Full article
(This article belongs to the Special Issue Carbon Nanostructures: Structure, Properties and Applications)
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23 pages, 11571 KiB  
Article
Nanoengineering of N-doped Mesoporous Carbon Nanoparticles with Adjustable Internal Cavities via Emulsion-Induced Assembly
by Cong Wang, Xiaoxi Zhao, Xiufang Wang and Yong Tian
Materials 2022, 15(7), 2591; https://doi.org/10.3390/ma15072591 - 1 Apr 2022
Cited by 2 | Viewed by 1580
Abstract
The preparation of mesoporous carbonaceous materials with particularly adjustable morphology is currently a hot area of research in mesoporous materials. Herein, a novel approach is reported for the construction of N-doped multicavity mesoporous carbon nanoparticles (NMMCNs) based on the “emulsion swelling–acid curing mechanism” [...] Read more.
The preparation of mesoporous carbonaceous materials with particularly adjustable morphology is currently a hot area of research in mesoporous materials. Herein, a novel approach is reported for the construction of N-doped multicavity mesoporous carbon nanoparticles (NMMCNs) based on the “emulsion swelling–acid curing mechanism” using a nanoemulsion assembly method under a high-speed shearing force. Intriguingly, this approach adopted a novel acid (HCl) curing procedure. Impressively, the morphology evolution from an internal multicavity to a single cavity and then to a non-cavity interior structure could be accomplished by simply varying the synthesis parameters. Additionally, this synthesis approach ingeniously overcame the following problems: (i) technically, the employment of high temperatures and high pressures in traditional hydrothermal reaction curing environments is avoided; (ii) this approach removes the requirement for silicon coating, which provides a limited pyrolysis condition, to obtain a multi-chamber structure. Resveratrol (Res) is an insoluble natural medicine and was successfully loaded into NMMCNs, thereby the Res–NMMCNs delivery system was constructed. Importantly, the Res–NMMCNs delivery system could still retain the antitumor and antioxidant activity of Res in vitro. Full article
(This article belongs to the Special Issue Carbon Nanostructures: Structure, Properties and Applications)
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Review

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11 pages, 293 KiB  
Review
Electron Spin Relaxation in Carbon Materials
by Damian Tomaszewski and Krzysztof Tadyszak
Materials 2022, 15(14), 4964; https://doi.org/10.3390/ma15144964 - 16 Jul 2022
Cited by 2 | Viewed by 1547
Abstract
This article focuses on EPR relaxation measurements in various carbon samples, e.g., natural carbons—anthracite, coal, higher anthraxolites, graphite; synthetically obtained carbons—glassy carbons, fullerenes, graphene, graphene oxide, reduced graphene oxide, graphite monocrystals, HOPG, nanoribbons, diamonds. The short introduction presents the basics of resonant electron [...] Read more.
This article focuses on EPR relaxation measurements in various carbon samples, e.g., natural carbons—anthracite, coal, higher anthraxolites, graphite; synthetically obtained carbons—glassy carbons, fullerenes, graphene, graphene oxide, reduced graphene oxide, graphite monocrystals, HOPG, nanoribbons, diamonds. The short introduction presents the basics of resonant electron spin relaxation techniques, briefly describing the obtained parameters. This review presents gathered results showing the processes leading to electron spin relaxation and typical ranges of electron spin relaxation rates for many different carbon types. Full article
(This article belongs to the Special Issue Carbon Nanostructures: Structure, Properties and Applications)
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