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 August 2024 | Viewed by 459

Special Issue Editors


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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

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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

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Keywords

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

Published Papers (1 paper)

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Research

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
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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
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