Carbon-Based Hybrid Materials for Environmental and Energy Applications

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Materials".

Deadline for manuscript submissions: 15 June 2025 | Viewed by 626

Special Issue Editors


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Guest Editor
Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea
Interests: electrochemical energy storage and conversion: supercapacitor; carbon nanofibers; electrospinning; metal-organic frameworks; water-splitting; ORR; OER; HER; Li-ion Bs; Li-SBs; Na-IonBs; Zn-air batteries
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju-561756, Republic of Korea
Interests: electrochemical Sensors; bio-medical application of electrospun nanofibers; quantum dots; electrochemical energy storage and conversion; supercapacitors; carbonnanofibers (CNFs); electrospinning; metal–organic frameworks (MOFs); water-splitting; batteries

E-Mail Website
Guest Editor
Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 561-756, Republic of Korea
Interests: CNFs; MOFs; supercapacitor; water splitting; electrocatalyst; bio-sensors
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The demand for sustainable and efficient materials for environmental and energy applications has propelled research into carbon-based materials beyond traditional approaches. This Special Issue aims to showcase the latest advances in novel carbon-based materials that address current challenges in energy storage and conversion systems, as well as environmental remediation. These materials, encompassing graphene derivatives, carbon nanotubes, carbon nanofibers, MOFs derivatives, biochar, and hybrid carbon composites, possess unique properties like high surface areas, conductivity, and tunable structures that make them highly suitable for applications in energy and environmental technologies.

Carbon-based materials are particularly attractive for electrochemical energy storage and conversion, as they can act as both active materials and conductive matrices to improve performance. Recent research has focused on enhancing their functionality through techniques like heteroatom doping, composite formation, and structural engineering. These modifications can optimize their electrochemical properties, providing improved catalytic performance in reactions such as the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). Furthermore, carbon-based materials demonstrate significant potential in next-generation batteries (e.g., lithium-ion, sodium-ion, potassium-ion, and lithium-sulfur batteries) and supercapacitors, where they contribute to increased capacity, stability, and cycling performance.

Additionally, carbon-based materials are becoming central to environmental applications, such as pollutant adsorption, water purification, and CO₂ capture. Their high surface area and tunable properties enable effective interaction with various contaminants, positioning them as promising solutions for environmental remediation.

This Special Issue invites original research articles and critical reviews that explore innovative synthesis techniques, structural and compositional modification methods, characterization, and performance in applications of novel carbon-based materials. The contributions will offer a comprehensive perspective on achieving sustainable and efficient solutions for energy and environmental applications through advanced carbon materials.

Research areas may include (but are not limited to) the following:

  • Synthesis and characterization of novel carbon-based materials;
  • Functionalization and doping strategies for enhanced properties;
  • Carbon-based materials for energy storage applications (e.g., batteries, supercapacitors);
  • Carbon materials in electrochemical energy conversion (e.g., HER, OER, ORR);
  • Structural engineering of carbon composites for environmental applications;
  • Carbon-based materials for pollutant adsorption and water purification;
  • CO₂ capture and storage using carbon-based materials;
  • Hybrid carbon composites for improved catalytic performance;
  • Stability and cycling studies of carbon materials in energy systems;
  • Advanced techniques for modifying and tuning carbon structures.

Dr. Kisan Chhetri
Prof. Dr. Hak Yong Kim
Dr. Tae Hoon Ko
Dr. Gunendra Prasad Ojha
Guest Editors

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. Inorganics is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • carbon-based materials
  • energy applications
  • environmental remediation
  • electrochemical storage
  • catalytic performance
  • sustainability

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Published Papers (2 papers)

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Research

11 pages, 3786 KiB  
Article
AlF3-Modified Carbon Anodes for Aluminum Electrolysis: Oxidation Resistance and Microstructural Evolution
by Guifang Xu, Yonggang Ding, Fan Bai, Youming Zhang, Jianhua Yin and Caifeng Chen
Inorganics 2025, 13(5), 165; https://doi.org/10.3390/inorganics13050165 - 15 May 2025
Viewed by 99
Abstract
The aluminum electrolysis industry faces significant challenges due to the high consumption and environmental impact of carbon anodes, which are prone to oxidation in high-temperature and strongly oxidizing environments. This study innovatively introduces aluminum fluoride (AlF3) as an additive to enhance [...] Read more.
The aluminum electrolysis industry faces significant challenges due to the high consumption and environmental impact of carbon anodes, which are prone to oxidation in high-temperature and strongly oxidizing environments. This study innovatively introduces aluminum fluoride (AlF3) as an additive to enhance the oxidation resistance of carbon anodes for aluminum electrolysis. By systematically exploring microstructural evolution through SEM, XRD, Raman spectroscopy, and permeability analyses, it reveals that AlF3 inserts fluorine atoms into carbon interlayers, forming F-C bonds that reduce interlayer spacing while promoting graphitization. Simultaneously, AlF3-derived α-Al2O3 particles densify the anode and make it more compact, reaching the optimum when 7 wt.% AlF3 is doped. The bulk density of the carbon anode increased to 2.08 g/cm3, porosity decreased to 0.315, and air permeability reached a minimum of 2.3 nPm. In addition, the fluorine intercalation reduces the electrical resistance to 2.12 Ω via conductive F-C clusters. The demonstrated efficacy of AlF3 additives in enhancing the oxidation resistance and conductivity of carbon anodes suggests strong potential for industrial adoption, particularly in optimizing anode composition to reduce energy consumption. Full article
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17 pages, 10207 KiB  
Article
Synthesis of Multiwalled Carbon Nanotubes on Different Cobalt Nanoparticle-Based Substrates
by Nicolas Moreau, Antonio Fonseca, Danilo Vuono, Joseph Delhalle, Zineb Mekhalif, Pierantonio De Luca and Janos B.Nagy
Inorganics 2025, 13(4), 113; https://doi.org/10.3390/inorganics13040113 - 3 Apr 2025
Viewed by 278
Abstract
The primary aim of this research was to identify the optimal experimental conditions for obtaining aligned carbon nanotubes, temporarily leaving aside aspects such as the purity of carbon nanotubes, which is nonetheless crucial for potential applications in the field of nanoelectronics. The predefined [...] Read more.
The primary aim of this research was to identify the optimal experimental conditions for obtaining aligned carbon nanotubes, temporarily leaving aside aspects such as the purity of carbon nanotubes, which is nonetheless crucial for potential applications in the field of nanoelectronics. The predefined alignment of CNTs can significantly influence the performance and efficiency of electronic components. In this study, two different catalytic supports based on cobalt nanoparticles, Co/SiO2/Si and Co/C, have been utilized and compared in the catalytic chemical vapor deposition (CCVD) synthesis of CNTs. Various parameters have been examined, including the nature and thickness of the catalyst, the reaction temperature, and the pressure of the acetylene mixture entering the reactor. The results indicate that the optimal temperature for the Co/SiO2/Si catalyst is 800 °C, while for the Co/C catalyst, it is 450 °C. The optimal Co layer thickness should be between 20 and 30 Å. CNT growth occurs from the top in the Co/C system, whereas bottom-up growth is characteristic of the Co/SiO2/Si catalyst, making the latter more suitable for the synthesis of CNTs intended for nanoelectronic devices. Full article
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