Low-temperature synthesis of a graphene-based, corrosion-inhibiting coating on an industrial grade alloy

Susanne Halkjær, Jon Iversen, Line Kyhl, Jacques Chevallier, Federico Andreatta, Feng Yu, Adam Stoot, Luca Camilli, Peter Bøggild, Liv Hornekær, Andrew M. Cassidy*

*Corresponding author for this work

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Abstract

The use of graphene materials as protective coatings for metallic substrates has received much attention because of graphene's ability to seal a metal and prevent the diffusion of most corrosive species to the metal surface. The application of graphene-based coating technology to industrially relevant samples, however, is hindered by the high growth temperatures required to prepare functional and efficient protective graphene layers. The growth temperatures typical for popular catalysts and precursors are incompatible with most relevant alloys. Here, we present a low-temperature synthesis route to a graphene-based coating, using a complex metallic alloy, Inconel 625, as an example substrate. We demonstrate that the coating reduces the sample corrosion current by two orders of magnitude and also shifts the open circuit potential from −308 mV to + 129 mV. We present an extensive characterisation of the coating and the coating synthesis procedure. The procedure relies on a surface-activated, thermally-induced polymerisation reaction and the method should be transferable to other metallic alloys.

Original languageEnglish
JournalCorrosion science
Volume152
Pages (from-to)1-9
Number of pages9
ISSN0010-938X
DOIs
Publication statusPublished - 2019

Keywords

  • Acid corrosion
  • Acid inhibitions
  • AES
  • Alloy
  • Interfaces
  • Intergranular corrosion
  • Raman spectroscopy
  • SEM
  • Superalloys
  • XPS

Cite this

Halkjær, S., Iversen, J., Kyhl, L., Chevallier, J., Andreatta, F., Yu, F., ... Cassidy, A. M. (2019). Low-temperature synthesis of a graphene-based, corrosion-inhibiting coating on an industrial grade alloy. Corrosion science, 152, 1-9. https://doi.org/10.1016/j.corsci.2019.01.029
Halkjær, Susanne ; Iversen, Jon ; Kyhl, Line ; Chevallier, Jacques ; Andreatta, Federico ; Yu, Feng ; Stoot, Adam ; Camilli, Luca ; Bøggild, Peter ; Hornekær, Liv ; Cassidy, Andrew M. / Low-temperature synthesis of a graphene-based, corrosion-inhibiting coating on an industrial grade alloy. In: Corrosion science. 2019 ; Vol. 152. pp. 1-9.
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abstract = "The use of graphene materials as protective coatings for metallic substrates has received much attention because of graphene's ability to seal a metal and prevent the diffusion of most corrosive species to the metal surface. The application of graphene-based coating technology to industrially relevant samples, however, is hindered by the high growth temperatures required to prepare functional and efficient protective graphene layers. The growth temperatures typical for popular catalysts and precursors are incompatible with most relevant alloys. Here, we present a low-temperature synthesis route to a graphene-based coating, using a complex metallic alloy, Inconel 625, as an example substrate. We demonstrate that the coating reduces the sample corrosion current by two orders of magnitude and also shifts the open circuit potential from −308 mV to + 129 mV. We present an extensive characterisation of the coating and the coating synthesis procedure. The procedure relies on a surface-activated, thermally-induced polymerisation reaction and the method should be transferable to other metallic alloys.",
keywords = "Acid corrosion, Acid inhibitions, AES, Alloy, Interfaces, Intergranular corrosion, Raman spectroscopy, SEM, Superalloys, XPS",
author = "Susanne Halkj{\ae}r and Jon Iversen and Line Kyhl and Jacques Chevallier and Federico Andreatta and Feng Yu and Adam Stoot and Luca Camilli and Peter B{\o}ggild and Liv Hornek{\ae}r and Cassidy, {Andrew M.}",
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Halkjær, S, Iversen, J, Kyhl, L, Chevallier, J, Andreatta, F, Yu, F, Stoot, A, Camilli, L, Bøggild, P, Hornekær, L & Cassidy, AM 2019, 'Low-temperature synthesis of a graphene-based, corrosion-inhibiting coating on an industrial grade alloy', Corrosion science, vol. 152, pp. 1-9. https://doi.org/10.1016/j.corsci.2019.01.029

Low-temperature synthesis of a graphene-based, corrosion-inhibiting coating on an industrial grade alloy. / Halkjær, Susanne; Iversen, Jon; Kyhl, Line; Chevallier, Jacques; Andreatta, Federico; Yu, Feng; Stoot, Adam; Camilli, Luca; Bøggild, Peter; Hornekær, Liv; Cassidy, Andrew M.

In: Corrosion science, Vol. 152, 2019, p. 1-9.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Low-temperature synthesis of a graphene-based, corrosion-inhibiting coating on an industrial grade alloy

AU - Halkjær, Susanne

AU - Iversen, Jon

AU - Kyhl, Line

AU - Chevallier, Jacques

AU - Andreatta, Federico

AU - Yu, Feng

AU - Stoot, Adam

AU - Camilli, Luca

AU - Bøggild, Peter

AU - Hornekær, Liv

AU - Cassidy, Andrew M.

PY - 2019

Y1 - 2019

N2 - The use of graphene materials as protective coatings for metallic substrates has received much attention because of graphene's ability to seal a metal and prevent the diffusion of most corrosive species to the metal surface. The application of graphene-based coating technology to industrially relevant samples, however, is hindered by the high growth temperatures required to prepare functional and efficient protective graphene layers. The growth temperatures typical for popular catalysts and precursors are incompatible with most relevant alloys. Here, we present a low-temperature synthesis route to a graphene-based coating, using a complex metallic alloy, Inconel 625, as an example substrate. We demonstrate that the coating reduces the sample corrosion current by two orders of magnitude and also shifts the open circuit potential from −308 mV to + 129 mV. We present an extensive characterisation of the coating and the coating synthesis procedure. The procedure relies on a surface-activated, thermally-induced polymerisation reaction and the method should be transferable to other metallic alloys.

AB - The use of graphene materials as protective coatings for metallic substrates has received much attention because of graphene's ability to seal a metal and prevent the diffusion of most corrosive species to the metal surface. The application of graphene-based coating technology to industrially relevant samples, however, is hindered by the high growth temperatures required to prepare functional and efficient protective graphene layers. The growth temperatures typical for popular catalysts and precursors are incompatible with most relevant alloys. Here, we present a low-temperature synthesis route to a graphene-based coating, using a complex metallic alloy, Inconel 625, as an example substrate. We demonstrate that the coating reduces the sample corrosion current by two orders of magnitude and also shifts the open circuit potential from −308 mV to + 129 mV. We present an extensive characterisation of the coating and the coating synthesis procedure. The procedure relies on a surface-activated, thermally-induced polymerisation reaction and the method should be transferable to other metallic alloys.

KW - Acid corrosion

KW - Acid inhibitions

KW - AES

KW - Alloy

KW - Interfaces

KW - Intergranular corrosion

KW - Raman spectroscopy

KW - SEM

KW - Superalloys

KW - XPS

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DO - 10.1016/j.corsci.2019.01.029

M3 - Journal article

VL - 152

SP - 1

EP - 9

JO - Corrosion Science

JF - Corrosion Science

SN - 0010-938X

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