Impermeable barrier films and protective coatings based on reduced graphene oxide

Yang Su, V. G. Kravets, S. L. Wong, J. Waters, Andre K Geim, Rahul Raveendran Nair

Research output: Contribution to journalArticlepeer-review


Flexible barrier films preventing permeation of gases and moistures are important for many industries ranging from food to medical and from chemical to electronic. From this perspective, graphene has recently attracted particular interest because its defect-free monolayers are impermeable to all atoms and molecules. However, it has been proved to be challenging to develop large-area defectless graphene films suitable for industrial use. Here we report barrier properties of multilayer graphitic films made by gentle chemical reduction of graphene oxide laminates with hydroiodic and ​ascorbic acids. They are found to be highly impermeable to all gases, liquids and aggressive chemicals including, for example, ​hydrofluoric acid. The exceptional barrier properties are attributed to a high degree of graphitization of the laminates and little structural damage during reduction. This work indicates a close prospect of graphene-based flexible and inert barriers and protective coatings, which can be of interest for numerous applications.
Original languageEnglish
Article number4843
JournalNature Communications
Publication statusPublished - 11 Sept 2014

Research Beacons, Institutes and Platforms

  • National Graphene Institute


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