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Impermeable barrier films and protective coatings based on reduced graphene oxide.pdf (1006.49 kB)

Impermeable barrier films and protective coatings based on reduced graphene oxide

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journal contribution
posted on 2020-01-15, 14:53 authored by Yang Su, VG Kravets, SL Wong, J Waters, AK Geim, RR Nair
© 2014 Macmillan Publishers Limited. All rights reserved. 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.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Materials

Published in

Nature Communications

Volume

5

Issue

1

Publisher

Springer Science and Business Media LLC

Version

  • AM (Accepted Manuscript)

Rights holder

© Palgrave Macmillan

Publisher statement

This is a post-peer-review, pre-copyedit version of an article published in Nature Communications. The final authenticated version is available online at: https://doi.org/10.1038/ncomms5843

Acceptance date

2014-07-29

Publication date

2014-09-11

Copyright date

2017

ISSN

2041-1723

eISSN

2041-1723

Language

  • en

Location

England

Depositor

Dr Yang Su Deposit date: 14 January 2020

Article number

4843

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