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Coatings
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Graphene-Based Composite Films
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Graphene-Based Composite Films

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (10 July 2021) | Viewed by 16612

Special Issue Editor

Dr. Enikö György

E-Mail Website
Guest Editor
Instituto de Ciencia de Materiales de Barcelona, Consejo Superior de Investigaciones Científicas (ICMAB-CSIC), Campus UAB, 08193 Bellaterra, Spain
Interests: laser material processing; thin films; hybrid organic-iorganic materials; graphene-based compounds

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to the Special Issue of Coatings journal, devoted to “Graphene-Based Composite Films”. Graphene is a two-dimensional carbon allotrope that has a monoatomic thick hexagonal (honeycomb) lattice structure. It has emerged as a promissing material, due to its exceptional physical and chemical properties, outstanding electric and thermal conductivity, chemical stability, excellent mechanical properties, and tunable surface area. Graphene oxide (GO) and reduced-graphene oxide belongs to the widely investigated graphene family as well, besides graphene nanosheets, quantum dots, and few- or multi-layer graphene. All these graphene-related materials constitute builing blocks for functional graphene-based nanocomposites. The aim of this Special Issue is to provide a comprehensive view of the scientific progress of graphene-based layers to date and also to evaluate future perspectives. The composite layers are investigated in many scientific fields for a large variety of technological applications. Recent progress shows that graphene-based materials can have a significant impact on the development of highly performant electronic and optoelectronic devices; chemical and biological sensors; energy-related applications such as energy conversion and storage; and in the biomedical fields including drug delivery, cancer therapy, or bioimaging. The Special Issue “Graphene-Based Composite Films” summarizes the state of the art of the research related to graphene-based coatings, as well as recent technological advances for a wide range of application areas.

In particular, the topics of interest include, but are not limited to:

  • The development of new synthesis techniques
  • Advanced characterisation methods
  • Functional mechanical, optical, electronic, and thermal properties of graphene-based coatings
  • Graphene-based layers for energy conversion and storage
  • Chemical and biological sensors
  • Environmental applications of graphene-based materials
  • Graphene-based electronic and optoelectronic devices
  • Graphene-based coatings for medical applications
  • The safety and toxicity of graphene materials

Dr. Enikö György
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. Coatings is an international peer-reviewed open access monthly 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.

Published Papers (4 papers)

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Research

13 pages, 2081 KiB  
Article
Graphene–Gold Nanostructures Hybrid Composites Screen-Printed Electrode for the Sensitive Electrochemical Detection of Vancomycin
by Adrian Blidar, Bogdan Feier, Alexandra Pusta, Ana-Maria Drăgan and Cecilia Cristea
Coatings 2019, 9(10), 652; https://doi.org/10.3390/coatings9100652 - 10 Oct 2019
Cited by 9 | Viewed by 2673
Abstract
The most important and well-known glycopeptide antibiotic, vancomycin (VAN), is used for the treatment of severe bacterial infections like methicillin-resistant staphylococcal infections and endocarditis caused by enterococci and sepsis. Taking into account the problem of the development of antibiotic resistance as well as [...] Read more.
The most important and well-known glycopeptide antibiotic, vancomycin (VAN), is used for the treatment of severe bacterial infections like methicillin-resistant staphylococcal infections and endocarditis caused by enterococci and sepsis. Taking into account the problem of the development of antibiotic resistance as well as its toxicity, both correlated with the VAN concentration (CVAN) in biological samples, there is need for better and more accessible quantification methods for this antibiotic. Considering all of the above, herein, we present a simple electrochemical method for VAN sensing based on a hybrid graphene-gold nanostructure nanocomposite electrode, which allows double detection directly in the oxidation domain and also indirectly, in reduction, using the electro-active gold nanostructures as a probe to monitor the current changing due to the interaction between gold and VAN. The developed method was able to successfully detect VAN in the linear range of 1–100 µM with a limit of detection (LOD) of 0.29 µM for the direct approach and 0.5 µM for the indirect one. The selectivity of the method was tested in the presence of other antibiotics and drugs. This method was successfully applied for the detection of VAN from human serum samples. Full article
(This article belongs to the Special Issue Graphene-Based Composite Films)
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15 pages, 3514 KiB  
Article
Custom-Made Chemically Modified Graphene Oxide to Improve the Anti-Scratch Resistance of Urethane-Acrylate Transparent Coatings
by Daniel Domene-López, Rubén Sarabia-Riquelme, Juan C. García-Quesada and Ignacio Martin-Gullon
Coatings 2019, 9(6), 408; https://doi.org/10.3390/coatings9060408 - 24 Jun 2019
Cited by 7 | Viewed by 4645
Abstract
In this work, a thermoset ultraviolet (UV)-cured polyurethane-acrylate resin was doped with different chemically-modified graphene obtained from a commercial graphene oxide (GO): as-received GO, chemically reduced GO (rGO), GO functionalized with vinyltriethoxysilane (VTES) (GOvtes), and GO functionalized with VTES and subsequently reduced with [...] Read more.
In this work, a thermoset ultraviolet (UV)-cured polyurethane-acrylate resin was doped with different chemically-modified graphene obtained from a commercial graphene oxide (GO): as-received GO, chemically reduced GO (rGO), GO functionalized with vinyltriethoxysilane (VTES) (GOvtes), and GO functionalized with VTES and subsequently reduced with a chemical agent (rGOvtes). Modified graphene was introduced in the oligomer component via solvent-assisted process using acetone, which was recovered after completion of the process. Results indicate that the GO-doped oligomers produce cured coatings with improved anti-scratch resistance (above the resistance of conventional coatings), without surface defects and high transparency. The anti-scratch resistance was measured with atomic force microscopy (AFM). Additionally, results are presented in terms of Wolf–Wilburn scale, a straightforward method widely accepted and employed in the coating industry. Full article
(This article belongs to the Special Issue Graphene-Based Composite Films)
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12 pages, 3131 KiB  
Article
Large Area Graphene Deposition on Hydrophobic Surfaces, Flexible Textiles, Glass Fibers and 3D Structures
by Guobin Jia, Jonathan Plentz, Jan Dellith, Andrea Dellith, Ruri Agung Wahyuono and Gudrun Andrä
Coatings 2019, 9(3), 183; https://doi.org/10.3390/coatings9030183 - 11 Mar 2019
Cited by 16 | Viewed by 3754
Abstract
Graphene and its derivatives have many superior electrical, thermal, mechanical, chemical, and structural properties, and promise for many applications. One of the issues for scalable applications is the lack of a simple, reliable method that allows the deposit of a well-ordered monolayer using [...] Read more.
Graphene and its derivatives have many superior electrical, thermal, mechanical, chemical, and structural properties, and promise for many applications. One of the issues for scalable applications is the lack of a simple, reliable method that allows the deposit of a well-ordered monolayer using low-cost graphene flakes onto target substrates with different surface properties. Another issue is the adhesion of the deposited graphene thin film, which has not been well investigated yet. Following our former finding of a double self-assembly (DSA) process for efficient deposition of a monolayer of graphene flakes (MGFs), in this work we demonstrate that the DSA process can be applied even on very challenging samples including highly hydrophobic polytetrafluoroethylene (PTFE), flexible textiles, complex 3D objects, and thin glass fibers. Additionally, we tested adhesion of the graphene flakes on the flat glass substrate by scotch tape peel test of the MGFs. The results show that the graphene flakes adhere quite well on the flat glass substrate and most of the graphene flakes stay on the glass. These findings may trigger many large-scale applications of low-cost graphene feedstocks and other 2D materials. Full article
(This article belongs to the Special Issue Graphene-Based Composite Films)
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24 pages, 6985 KiB  
Article
Properties of Nitrogen/Silicon Doped Vertically Oriented Graphene Produced by ICP CVD Roll-to-Roll Technology
by Petr Rozel, Darya Radziuk, Lubov Mikhnavets, Evgenij Khokhlov, Vladimir Shiripov, Iva Matolínová, Vladimír Matolín, Alexander Basaev, Nikolay Kargin and Vladimir Labunov
Coatings 2019, 9(1), 60; https://doi.org/10.3390/coatings9010060 - 19 Jan 2019
Cited by 8 | Viewed by 5046
Abstract
Simultaneous mass production of high quality vertically oriented graphene nanostructures and doping them by using an inductively coupled plasma chemical vapor deposition (ICP CVD) is a technological problem because little is understood about their growth mechanism over enlarged surfaces. We introduce a new [...] Read more.
Simultaneous mass production of high quality vertically oriented graphene nanostructures and doping them by using an inductively coupled plasma chemical vapor deposition (ICP CVD) is a technological problem because little is understood about their growth mechanism over enlarged surfaces. We introduce a new method that combines the ICP CVD with roll-to-roll technology to enable the in-situ preparation of vertically oriented graphene by using propane as a precursor gas and nitrogen or silicon as dopants. This new technology enables preparation of vertically oriented graphene with distinct morphology and composition on a moving copper foil substrate at a lower cost. The technological parameters such as deposition time (1–30 min), gas partial pressure, composition of the gas mixture (propane, argon, nitrogen or silane), heating treatment (1–60 min) and temperature (350–500 °C) were varied to reveal the nanostructure growth, the evolution of its morphology and heteroatom’s intercalation by nitrogen or silicon. Unique nanostructures were examined by FE-SEM microscopy, Raman spectroscopy and energy dispersive X-Ray scattering techniques. The undoped and nitrogen- or silicon-doped nanostructures can be prepared with the full area coverage of the copper substrate on industrially manufactured surface defects. Longer deposition time (30 min, 450 °C) causes carbon amorphization and an increased fraction of sp3-hybridized carbon, leading to enlargement of vertically oriented carbonaceous nanostructures and growth of pillars. Full article
(This article belongs to the Special Issue Graphene-Based Composite Films)
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