Enhanced Room-Temperature Corrosion of Copper in the Presence of Graphene
Open Access
- 5 August 2013
- journal article
- Published by American Chemical Society (ACS) in ACS Nano
- Vol. 7 (8), 6939-6947
- https://doi.org/10.1021/nn402150t
Abstract
This paper reports the enhancement of long-term oxidation of copper at room temperature by a graphene coating. Previous studies showed that graphene is an effective anticorrosion barrier against short-term thermal and electrochemical oxidation of metals. Here, we show that a graphene coating can, on the contrary, accelerate long-term oxidation of an underlying copper substrate in ambient atmosphere at room temperature. After 6 months of exposure in air, both Raman spectroscopy and energy-dispersive X-ray spectroscopy indicated that graphene-coated copper foil had a higher degree of oxidation than uncoated foil, although X-ray photoelectron spectroscopy showed that the surface concentration of Cu(2+) was higher for the uncoated sample. In addition, we observed that the oxidation of graphene-coated copper foil was not homogeneous and occurred within micrometer-sized domains. The corrosion enhancement effect of graphene was attributed to its ability to promote electrochemical corrosion of copper.This publication has 43 references indexed in Scilit:
- Improving Graphene Diffusion Barriers via Stacking Multiple Layers and Grain Size EngineeringAdvanced Functional Materials, 2013
- Graphene coated Ni films: A protective coatingThin Solid Films, 2013
- Graphene: An effective oxidation barrier coating for liquid and two-phase cooling systemsCorrosion Science, 2012
- Improved Thermal Oxidation Stability of Solution-Processable Silver Nanowire Transparent Electrode by Reduced Graphene OxideACS Applied Materials & Interfaces, 2012
- Graphene Coatings: Probing the Limits of the One Atom Thick Protection LayerACS Nano, 2012
- Direct Optical Characterization of Graphene Growth and Domains on Growth SubstratesScientific Reports, 2012
- Oxidation Resistance of Iron and Copper Foils Coated with Reduced Graphene Oxide MultilayersACS Nano, 2012
- Fabrication of Graphene with CuO Islands by Chemical Vapor DepositionLangmuir, 2012
- Oxidation Resistance of Graphene-Coated Cu and Cu/Ni AlloyACS Nano, 2011
- Graphene-stabilized copper nanoparticles as an air-stable substitute for silver and gold in low-cost ink-jet printable electronicsNanotechnology, 2008