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Nanomaterials
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Synthesis & Devices of Graphene-Based 2D Nanomaterials for Energy Storage...
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Synthesis & Devices of Graphene-Based 2D Nanomaterials for Energy Storage and Conversion

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

Deadline for manuscript submissions: 25 April 2025 | Viewed by 2342

Special Issue Editors

Dr. Tamás Szabó

E-Mail Website
Guest Editor
Department of Physical Chemistry and Materials Science, University of Szeged, Szeged, Hungary
Interests: carbon materials; colloid and interface science
Special Issues, Collections and Topics in MDPI journals
Dr. Amrita Jain

E-Mail Website
Guest Editor
Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, Poland
Interests: supercapacitors; biomass conversion; ionic liquids; electrochemistry; carbon materials

Special Issue Information

Dear Colleagues,

Let us introduce a new Special Issue of Nanomaterials, which revolves around highly anisometric platelets of graphene materials assembled into nanostructures (composites, ultrathin films). Assemblies in which two-dimensional carbonaceous sheets are internally strongly bonded but only weakly bonded to adjacent layers are, therefore, in our focus and we request the submission of manuscripts that shed more light on the synthesis, properties, and applications of these materials. The special aspect of this Special Issue lies in the fabrication of graphene material devices. This feature demonstrates the versatility of 2D nanostructures which are carbon based but may be doped with non-metallic elements for a range of innovative energetic applications such as supercapacitors or batteries. Materials including graphene and its derivatives, graphene (graphite) oxide, fluorographene (and graphite fluoride) and layer-structured nitrides (hexagonal boron nitride, graphitic carbon nitride, borocarbonitrides) may all bestow different functionality to the carbon and result in different functionality of the devices as well. We request short communications, regular research papers, and also reviews on this topic.

Dr. Tamás Szabó
Dr. Amrita Jain
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

  • nanocomposites
  • ultrathin films
  • functionality
  • graphene
  • graphene oxide
  • non-metallic elements
  • devices
  • supercapacitors
  • Li-ion battery
  • electrochemistry
  • colloids and surfaces

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Published Papers (2 papers)

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Research

22 pages, 5797 KiB  
Article
Composites of Titanium–Molybdenum Mixed Oxides and Non-Traditional Carbon Materials: Innovative Supports for Platinum Electrocatalysts for Polymer Electrolyte Membrane Fuel Cells
by Ilgar Ayyubov, Emília Tálas, Irina Borbáth, Zoltán Pászti, Cristina Silva, Ágnes Szegedi, Andrei Kuncser, M. Suha Yazici, István E. Sajó, Tamás Szabó and András Tompos
Nanomaterials 2024, 14(12), 1053; https://doi.org/10.3390/nano14121053 - 19 Jun 2024
Cited by 1 | Viewed by 1098
Abstract
TiO2-based mixed oxide–carbon composite support for Pt electrocatalysts provides higher stability and CO tolerance under the working conditions of polymer electrolyte membrane fuel cells compared to traditional carbon supports. Non-traditional carbon materials like graphene nanoplatelets and graphite oxide used as the [...] Read more.
TiO2-based mixed oxide–carbon composite support for Pt electrocatalysts provides higher stability and CO tolerance under the working conditions of polymer electrolyte membrane fuel cells compared to traditional carbon supports. Non-traditional carbon materials like graphene nanoplatelets and graphite oxide used as the carbonaceous component of the composite can contribute to its affordability and/or functionality. Ti(1−x)MoxO2-C composites involving these carbon materials were prepared through a sol–gel route; the effect of the extension of the procedure through a solvothermal treatment step was assessed. Both supports and supported Pt catalysts were characterized by physicochemical methods. Electrochemical behavior of the catalysts in terms of stability, activity, and CO tolerance was studied. Solvothermal treatment decreased the fracture of graphite oxide plates and enhanced the formation of a reduced graphene oxide-like structure, resulting in an electrically more conductive and more stable catalyst. In parallel, solvothermal treatment enhanced the growth of mixed oxide crystallites, decreasing the chance of formation of Pt–oxide–carbon triple junctions, resulting in somewhat less CO tolerance. The electrocatalyst containing graphene nanoplatelets, along with good stability, has the highest activity in oxygen reduction reaction compared to the other composite-supported catalysts. Full article
(This article belongs to the Special Issue Synthesis & Devices of Graphene-Based 2D Nanomaterials for Energy Storage and Conversion)
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13 pages, 3513 KiB  
Article
Amorphous Fe2O3 Anchored on N-Doped Graphene with Internal Micro-Channels as an Active and Durable Anode for Sodium-Ion Batteries
by Lin Li, Hui Li, Linxin Liu, Xunchang Yan, Yunze Long and Wenpeng Han
Nanomaterials 2024, 14(11), 937; https://doi.org/10.3390/nano14110937 - 27 May 2024
Viewed by 883
Abstract
The reduced graphene oxide (rGO) exhibits outstanding electrical conductivity and a high specific surface area, making it a promising material for various applications. Fe2O3 is highly desirable due to its significant theoretical capacity and cost-effectiveness, high abundance, and environmental friendliness. [...] Read more.
The reduced graphene oxide (rGO) exhibits outstanding electrical conductivity and a high specific surface area, making it a promising material for various applications. Fe2O3 is highly desirable due to its significant theoretical capacity and cost-effectiveness, high abundance, and environmental friendliness. However, the performance of these r-GO/Fe2O3 composite electrodes still needs to be further improved, especially in terms of cycle stability. The composite of Fe2O3 anchored on N-doped graphene with inside micro-channels (Fe2O3@N-GIMC) was used to be efficiently prepared. Because the inside channels can furnish extra transmission pathways and absorption websites and the interconnected structure can efficaciously forestall pulverization and aggregation of electrode materials. In addition, N doping is also beneficial to improve its electrochemical performance. Thus, it demonstrates exceptional sodium storage characteristics, including notable electrochemical activity, impressive initial Coulombic efficiency, and favorable rate performance. The optimized Fe2O3@N-GIMC indicates outstanding discharge capacity (573.5 mAh g−1 at 1 A g−1), significant rate performance (333.6 mAh g−1 at 8 A g−1), and stable long-term cycle durability (308.9 mAh g−1 after 1000 cycles at 1 A g−1, 200.8 mAh g−1 after 4000 cycles at 1 A g−1) as a sodium-ion battery anode. This presents a new approach for preparing graphene-based high-functional composites and lays a stable basis for further expanding its application field. Full article
(This article belongs to the Special Issue Synthesis & Devices of Graphene-Based 2D Nanomaterials for Energy Storage and Conversion)
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