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C
Special Issues
New Advances in Graphene Synthesis and Applications
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New Advances in Graphene Synthesis and Applications

A special issue of C (ISSN 2311-5629). This special issue belongs to the section "Carbon Materials and Carbon Allotropes".

Deadline for manuscript submissions: 25 July 2025 | Viewed by 3131

Special Issue Editors

Dr. Yi Cheng

E-Mail Website
Guest Editor
Department of Chemistry, Rice University, Houston, TX, USA
Interests: graphene; chemical vapor deposition; water management; electrothermal heating
Dr. Jinhang Chen

E-Mail Website
Guest Editor
Department of Chemistry, Rice University, Houston, TX 77054, USA
Interests: lithium-ion batteries; solid-state batteries; electrochemistry; energy materials; waste upcycling
Special Issues, Collections and Topics in MDPI journals
Dr. Qiming Liu

E-Mail Website
Guest Editor
Department of Chemistry, Rice University, Houston, TX, USA
Interests: carbon materials; nanomaterials; energy storage; renewable energy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Graphene, a single layer of carbon atoms arranged in a hexagonal lattice, has garnered immense attention due to its extraordinary properties, including its high electrical conductivity, mechanical strength, and flexibility. Recent advances in graphene synthesis have paved the way for scalable and cost-effective production methods, enabling its broader application across various industries. Innovations such as chemical vapor deposition (CVD), liquid-phase exfoliation, and electrochemical approaches have improved the quality and yield of graphene, making it more accessible for commercial use. These advancements have also expanded graphene's applications, ranging from electronics and energy storage to biomedicine and environmental sensors.

This Special Issue explores the latest breakthroughs in graphene synthesis techniques and their transformative impact on technology, offering insights into future trends and potential challenges in the field.

Dr. Yi Cheng
Dr. Jinhang Chen
Dr. Qiming Liu
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. C is an international peer-reviewed open access quarterly 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 1600 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
  • chemical vapor deposition
  • exfoliation
  • electrochemical synthesis
  • scale-up synthesis
  • electronic device
  • energy storage

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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16 pages, 2648 KiB  
Article
Raman Spectroscopy of Graphene/CNT Layers Deposited on Interdigit Sensors for Application in Gas Detection
by Stefan-Marian Iordache, Ana-Maria Iordache, Ana-Maria Florea (Raduta), Stefan Caramizoiu, Catalin Parvulescu, Flaviu Baiasu, Irina Negut and Bogdan Bita
C 2025, 11(1), 9; https://doi.org/10.3390/c11010009 - 20 Jan 2025
Viewed by 992
Abstract
Graphene/CNT layers were deposited onto platinum electrodes of an interdigitated sensor using radio-frequency magnetron sputtering. The graphene/CNTs were synthesized in an Argon atmosphere at a pressure of (2 × 10−2–5 × 10−3) mbar, with the substrate maintained at 300 [...] Read more.
Graphene/CNT layers were deposited onto platinum electrodes of an interdigitated sensor using radio-frequency magnetron sputtering. The graphene/CNTs were synthesized in an Argon atmosphere at a pressure of (2 × 10−2–5 × 10−3) mbar, with the substrate maintained at 300 °C either through continuous heating with an electronically controlled heater or by applying a −200 V bias using a direct current power supply throughout the deposition process. The study compares the surface morphology, carbon atom arrangement within the layer volumes, and electrical properties of the films as influenced by the different methods of substrate heating. X-ray diffraction and Raman spectroscopy confirmed the formation of CNTs within the graphene matrix. Additionally, scanning electron microscopy revealed that the carbon nanotubes are aligned and organized into cluster-like structure. The graphene/CNT layers produced at higher pressures present exponential I–V characteristics that ascertain the semiconducting character of the layers and their suitability for applications in gas sensing. Full article
(This article belongs to the Special Issue New Advances in Graphene Synthesis and Applications)
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Review

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24 pages, 7558 KiB  
Review
Graphene-Enhanced Piezoelectric Nanogenerators for Efficient Energy Harvesting
by Joydip Sengupta and Chaudhery Mustansar Hussain
C 2025, 11(1), 3; https://doi.org/10.3390/c11010003 - 1 Jan 2025
Cited by 1 | Viewed by 1378
Abstract
Graphene-based piezoelectric nanogenerators (PENGs) have emerged as a promising technology for sustainable energy harvesting, offering significant potential in powering next-generation electronic devices. This review explores the integration of graphene, a highly conductive and mechanically robust two-dimensional (2D) material, with PENG to enhance their [...] Read more.
Graphene-based piezoelectric nanogenerators (PENGs) have emerged as a promising technology for sustainable energy harvesting, offering significant potential in powering next-generation electronic devices. This review explores the integration of graphene, a highly conductive and mechanically robust two-dimensional (2D) material, with PENG to enhance their energy conversion efficiency. Graphene’s unique properties, including its exceptional electron mobility, high mechanical strength, and flexibility, allow for the development of nanogenerators with superior performance compared to conventional PENGs. When combined with piezoelectric materials, polymers, graphene serves as both an active layer and a charge transport medium, boosting the piezoelectric response and output power. The graphene-based PENGs can harvest mechanical energy from various sources, including vibrations, human motion, and ambient environmental forces, making them ideal for applications in wearable electronics, and low-power devices. This paper provides an overview of the fabrication techniques, material properties, and energy conversion mechanisms of graphene-based PENGs, and integration into real-world applications. The findings demonstrate that the incorporation of graphene enhances the performance of PENG, paving the way for future innovations in energy-harvesting technologies. Full article
(This article belongs to the Special Issue New Advances in Graphene Synthesis and Applications)
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