Oxidation resistance of graphene-coated Cu and Cu/Ni alloy

Shanshan Chen, Lola Brown, Mark Levendorf, Weiwei Cai, Sang Yong Ju, Jonathan Edgeworth, Xuesong Li, Carl W. Magnuson, Aruna Velamakanni, Richard D. Piner, Junyong Kang, Jiwoong Park, Rodney S. Ruoff

Research output: Contribution to journalArticlepeer-review

1116 Citations (Scopus)


The ability to protect refined metals from reactive environments is vital to many industrial and academic applications. Current solutions, however, typically introduce several negative effects, including increased thickness and changes in the metal physical properties. In this paper, we demonstrate for the first time the ability of graphene films grown by chemical vapor deposition to protect the surface of the metallic growth substrates of Cu and Cu/Ni alloy from air oxidation. In particular, graphene prevents the formation of any oxide on the protected metal surfaces, thus allowing pure metal surfaces only one atom away from reactive environments. SEM, Raman spectroscopy, and XPS studies show that the metal surface is well protected from oxidation even after heating at 200 °C in air for up to 4 h. Our work further shows that graphene provides effective resistance against hydrogen peroxide. This protection method offers significant advantages and can be used on any metal that catalyzes graphene growth.

Original languageEnglish
Pages (from-to)1321-1327
Number of pages7
JournalACS Nano
Issue number2
Publication statusPublished - 2011 Feb 22

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)
  • Physics and Astronomy(all)


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