Commentary

A cautionary note on graphene anti-corrosion coatings

Despite graphene's apparent potential for anti-corrosion coatings, it is cathodic to most metals and can promote corrosion at exposed graphene–metal interfaces. This may accelerate dangerous localized corrosion that can seriously weaken the coated metals.

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Acknowledgements

We thank Y.W. Chung and A.R. Koltonow for helpful discussions, F. Frankel for advice on Fig. 1, and the Office of Naval Research (ONRN000141612838) for support.

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Affiliations

  1. Chenlong Cui, Alane Tarianna O. Lim and Jiaxing Huang are in the Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA

    • Chenlong Cui
    • , Alane Tarianna O. Lim
    •  & Jiaxing Huang

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Correspondence to Jiaxing Huang.