Chemical Vapour Deposition of Graphene for Durable Anticorrosive Coating on Copper

Abstract

Due to the excellent chemical inertness, graphene can be used as an anti-corrosive coating to protect metal surfaces. Here, we report the growth of graphene by using a chemical vapour deposition (CVD) process with ethanol as a carbon source. Surface and structural characterisations of CVD grown films suggest the formation of double-layer graphene. Electrochemical impedance spectroscopy has been used to study the anticorrosion behaviour of the CVD grown graphene layer. The observed corrosion rate of 8.08 × 10−14 m/s for graphene-coated copper is 24 times lower than the value for pure copper which shows the potential of graphene as the anticorrosive layer. Furthermore, we observed no significant changes in anticorrosive behaviour of the graphene coated copper samples stored in ambient environment for more than one year.

Advanced wearable biosensors for the detection of body fluids and exhaled breath by graphene

“…c Schematic of a common chemical vapor deposition setup for synthesis of graphene. Reprinted with permission from [ 61 ]. Copyright 2020 Multidisciplinary Digital Publishing Institute.…”

“…In another study, graphene was deposited by CVD as a durable anticorrosive coating on copper using ethanol as a carbon source (Fig. 3c ) [ 61 ]. Methane (CH 4 ) was used as gas precursors to provide stable carbon flow at average growth temperature set around 1000 °C.…”

Review—A Review of the Corrosion Behaviour of Graphene Coatings on Metal Surfaces Obtained by Chemical Vapour Deposition

“…Therefore, modifying the graphene deposition technique for producing high quality, low defect graphene seems an essential step in this regard. In order to produce high-quality CVD-grown graphene, using ethanol as a gas precursor was suggested by Ji et al 71 A bi-layer graphene was produced on Cu substrate that reduced the corrosion rate of the substrate 24 times compared to the bare Cu. Moreover, the stability of the corrosion protection behaviour of the graphene coating was investigated by storing the coated sample for one year in the ambient environment, which indicated that the graphene coating could preserve its barrier properties over time.…”