Issue 47, 2018

N-doping of graphene: toward long-term corrosion protection of Cu

Abstract

Despite the extraordinary impermeability of graphene, graphene fails to prevent the oxidation of Cu substrates under long-term air exposure owing to their high conductivity. Previous investigations showed that N-doped graphene could modulate the electrical properties of graphene while there has been no experimental example to investigate the protective performance of N-doped graphene to date. Here we demonstrate the synthesis and characterization of N-doped graphene with large-area atomic layers, and then evaluate its protective properties by both short- (electrochemical tests) and long-term (air exposure) corrosion tests. The results show that both short- and long-term corrosion are inhibited because incorporating nitrogen in graphene can decrease the conductivity of graphene and thus prevent the electron transport between Cu/N-doped graphene interfaces. Our finding provides a new protection method of graphene and will promote the basic research and applications of graphene.

Graphical abstract: N-doping of graphene: toward long-term corrosion protection of Cu

Supplementary files

Article information

Article type
Paper
Submitted
07 Jun 2018
Accepted
24 Aug 2018
First published
24 Aug 2018

J. Mater. Chem. A, 2018,6, 24136-24148

N-doping of graphene: toward long-term corrosion protection of Cu

S. Ren, M. Cui, W. Li, J. Pu, Q. Xue and L. Wang, J. Mater. Chem. A, 2018, 6, 24136 DOI: 10.1039/C8TA05421E

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