Graphene: applications and challenges of large-scale synthesis

Authors

DOI:

https://doi.org/10.24933/e-usf.v9i1.464

Keywords:

Graphene synthesis, Nanomaterials, Top-down and Bottom-up methods, Graphene large-scale production, PECVD, Graphene Applications, Graphene Scalability challenges

Abstract

The applications of graphene are becoming increasingly broad, and the demand for this two-dimensional material with remarkable properties continues to grow. Graphene is a nanomaterial with a thickness of a single atom, an sp2-hybridized carbon allotrope, where each atom forms three bonds in a hexagonal structure, confined to two dimensions. This study addresses the main methods of graphene synthesis, categorized into top-down and bottom-up mechanisms. A systematic literature review of scientific articles on graphene synthesis was conducted to identify the most suitable methods for large-scale production. Various characteristics such as scalability, efficiency, economic and environmental sustainability were evaluated. Additionally, the applications of different types of graphene produced by various methods were analyzed. Graphene can be physically exfoliated from graphite, while graphene foams can be obtained through microwave-assisted exfoliation, graphene oxide is produced by chemical exfoliation, graphene flakes are synthesized via flash Joule heating, and high-quality few-layer graphene films are generated through chemical vapor deposition. The study concluded that the most suitable method for large-scale graphene synthesis currently is PECVD, capable of forming single-layer pure graphene films with large areas. The feasibility of other methods was discussed, raising questions regarding their applicability, utility, efficiency, and the ongoing challenges related to the scalability of the presented methods.

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Published

2025-04-24

How to Cite

Leite Granado Santos, G., Benedita de Oliveira Dorta Martins, S., & D’Amelio, M. T. S. (2025). Graphene: applications and challenges of large-scale synthesis. Ensaios USF, 9(1). https://doi.org/10.24933/e-usf.v9i1.464

Issue

Section

Ciências Exatas, Engenharias e Tecnológicas

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