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Graphene-Based Materials and Their Potential Applications
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Graphene-Based Materials and Their Potential Applications

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

Deadline for manuscript submissions: closed (20 April 2023) | Viewed by 9969

Special Issue Editor

Prof. Dr. Stefano Bellucci

E-Mail Website
Guest Editor
INFN-Laboratori Nazionali di Frascati, 00044 Frascati, Italy
Interests: carbon nanotubes; material sciences; nanotechnology; multifunctional materials; nano carbon; biomedical applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Graphene-Based Materials are unique due to their exceptional magnetic, thermal, electrical, chemical, and mechanical properties, finding applications as super-strong composite materials, energy storage and conversion applications, supercapacitors, smart sensors, targeted drug delivery, paints, inks, quantum devices, wearable devices and nanoelectronics.

This Special Issue will focus on new insights into the properties (magnetic, thermal, electrical, chemical, mechanical, etc.) and applications of Graphene-Based Materials.

Potential topics include (but are not limited to):

  • The synthesis/fabrication of Graphene-Based Materials;
  • Magnetic, electrochemical, thermodynamical, optical, mechanical and optoelectronic
  • studies in Graphene-Based Materials;
  • Physical and chemical properties of Graphene-Based Materials;
  • The functionalization of Graphene-Based Materials;
  • Emerging applications and properties of Graphene-Based Materials.

Prof. Dr. Stefano Bellucci
Guest Editor

Manuscript Submission Information

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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

  • graphene-based materials
  • synthesis/fabrication/functionalization
  • physico-chemical properties
  • electrochemical properties
  • thermodynamical properties
  • optical and optoelectronic properties
  • mechanical properties

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Published Papers (4 papers)

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Research

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18 pages, 5971 KiB  
Article
Facile Synthesis of CoOOH Nanorings over Reduced Graphene Oxide and Their Application in the Reduction of p-Nitrophenol
by Huihui Chen, Mei Yang, Jun Yue and Guangwen Chen
Materials 2022, 15(24), 8862; https://doi.org/10.3390/ma15248862 - 12 Dec 2022
Cited by 6 | Viewed by 1975
Abstract
A facile and one-step route has been employed for the synthesis of highly uniform CoOOH nanorings assembled on the surface of reduced graphene oxide (CoOOH/rGO nanocomposite). The physicochemical properties of the obtained CoOOH/rGO nanocomposite were characterized using X-ray diffraction pattern (XRD), scanning electron [...] Read more.
A facile and one-step route has been employed for the synthesis of highly uniform CoOOH nanorings assembled on the surface of reduced graphene oxide (CoOOH/rGO nanocomposite). The physicochemical properties of the obtained CoOOH/rGO nanocomposite were characterized using X-ray diffraction pattern (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 physical adsorption (BET) and X-ray photoelectron spectroscopy (XPS). The TEM and SEM results confirmed that CoOOH nanorings (edge length ∼ 95 nm) were uniformly decorated on reduced graphene oxide nanosheets using the simple precipitation–oxidation–reduction method. When used as a catalyst for the reduction of p-nitrophenol to p-aminophenol in the presence of excess NaBH4, the resulting CoOOH/rGO nanocomposite exhibited good activity and stability. When the initial concentration of p-nitrophenol was 1.25 × 10−4 mol·L−1, p-nitrophenol could be fully reduced within 3.25 min at room temperature. The apparent rate constant was estimated to be 1.77 min−1, which is higher than that of pure CoOOH nanorings. Moreover, p-nitrophenol could still be completely reduced within 6 min in the fifth successive cycle. The superior catalytic performance of the nanocomposite is attributed to the synergistic effect between the highly dispersed CoOOH nanorings and the unique surface properties of the reduced graphene oxide nanosheets, which greatly increased the concentration of p-nitrophenol near CoOOH nanorings on reduced graphene oxide surface and improved the local electron density at the interface. Full article
(This article belongs to the Special Issue Graphene-Based Materials and Their Potential Applications)
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16 pages, 5751 KiB  
Article
Graphene Oxide-Modified Epoxy Asphalt Bond Coats with Enhanced Bonding Properties
by Junsheng Zhang, Rui Wang, Ruikang Zhao, Fan Jing, Chenxuan Li, Qingjun Wang and Hongfeng Xie
Materials 2022, 15(19), 6846; https://doi.org/10.3390/ma15196846 - 2 Oct 2022
Cited by 14 | Viewed by 2195
Abstract
The bonding strength of the bond coat plays an important role in the composite action between the wearing surface and the deck plate of the orthotropic steel deck system. Poor bonding results in the delamination of the wearing surface from the deck plate. [...] Read more.
The bonding strength of the bond coat plays an important role in the composite action between the wearing surface and the deck plate of the orthotropic steel deck system. Poor bonding results in the delamination of the wearing surface from the deck plate. Graphene oxide (GO) possesses outstanding mechanical and thermal properties, as well as impressive multifunctional groups, which makes it an ideal reinforcement candidate for polymer matrices. In this study, graphene oxide was used to improve the bonding strength and toughness of the epoxy asphalt bond coat (EABC). The dispersion, hydrophobicity, viscosity–time behavior, phase-separated morphology, dynamic mechanical properties, pull-off strength, shear strength and mechanical performance of GO-modified EABCs were investigated using various techniques. The inclusion of GO improved the hydrophobicity of the unmodified EABC. The viscosity of the unmodified EABC was lowered with the addition of GO during curing. Moreover, the allowable construction time for the modified EABCs was extended with the GO loading. The incorporation of GO enhanced the stiffness of the unmodified EABC in the glassy and rubbery states. However, graphene oxide lowered the glass transition temperature of the asphalt of the unmodified EABC. Confocal microscopy observations revealed that GO was invisible in both the asphalt and epoxy phases of the EABC. The inclusion of GO improved the bonding strength, particularly at 60 °C, and mechanical properties of the unmodified EABC. Full article
(This article belongs to the Special Issue Graphene-Based Materials and Their Potential Applications)
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13 pages, 3040 KiB  
Article
Modeling of Electrical Conductivity for Graphene-Filled Products Assuming Interphase, Tunneling Effect, and Filler Agglomeration Optimizing Breast Cancer Biosensors
by Yasser Zare and Kyong Yop Rhee
Materials 2022, 15(18), 6303; https://doi.org/10.3390/ma15186303 - 11 Sep 2022
Cited by 3 | Viewed by 1622
Abstract
In this study, the percolation inception, actual filler amount, and concentration of nets are expressed using the filler size and agglomeration, interphase depth, and tunneling size. A modified form of the power-law model is recommended for the conductivity of graphene–polymer products using the [...] Read more.
In this study, the percolation inception, actual filler amount, and concentration of nets are expressed using the filler size and agglomeration, interphase depth, and tunneling size. A modified form of the power-law model is recommended for the conductivity of graphene–polymer products using the mentioned characteristics. The modified model is used to plot and evaluate the conductivity at dissimilar ranges of factors. In addition, the prediction results of the model are compared with the experimented values of several samples. A low percolation inception and high-volume portion of nets that improve the conductivity of nanoparticles are achieved at a low agglomeration extent, thick interphase, large aspect ratio of the nanosheets, and large tunnels. The developed equation for percolation inception accurately predicts the results assuming tunneling and interphase parts. The innovative model predicts the conductivity for the samples, demonstrating good agreement with the experimented values. This model is appropriate to improve breast cancer biosensors, because conductivity plays a key role in sensing. Full article
(This article belongs to the Special Issue Graphene-Based Materials and Their Potential Applications)
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Other

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15 pages, 9312 KiB  
Perspective
Lightning Strike Protection: Current Challenges and Future Possibilities
by Markus Ostermann, Juergen Schodl, Peter A. Lieberzeit, Pierluigi Bilotto and Markus Valtiner
Materials 2023, 16(4), 1743; https://doi.org/10.3390/ma16041743 - 20 Feb 2023
Cited by 3 | Viewed by 3325
Abstract
An airplane is statistically struck by lightning every year. The need for lightweight aircraft to reduce the production of carbon dioxide has significantly reduced the presence of metals in favour of composites, resulting in lower lightning strike protection efficiency. In this perspective, we [...] Read more.
An airplane is statistically struck by lightning every year. The need for lightweight aircraft to reduce the production of carbon dioxide has significantly reduced the presence of metals in favour of composites, resulting in lower lightning strike protection efficiency. In this perspective, we critically review the state of technologies in lightning strike protection solutions based on carbon materials, graphene, and MXenes. Furthermore, we comment on possible future research directions in the field. Full article
(This article belongs to the Special Issue Graphene-Based Materials and Their Potential Applications)
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