Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability

C.A.J. Richards; C.F. Glover; G. Williams; H.N. McMurray; J. Baker

doi:10.1016/j.corsci.2018.03.016

Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability

C.A.J. Richards, C.F. Glover, G. Williams, H.N. McMurray, J. Baker

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

27 Citations (SciVal)

Abstract

The electronic and diffusion-blocking properties of graphene nano-platelets (GNPs) are quantified with a view to understanding their action as (possible) additives to anti-corrosion coatings. Platelet size and thickness are determined by SEM and BET specific surface area measurements. A Scanning Kelvin probe is used to show that a contact potential of up to 1.2V develops between GNP particles and various metal substrates: silver, copper, iron and zinc. A novel photochemical method is used to show that oxygen permeation rates through a PVB-GNP (polyvinylbutyral) composite coating decrease by over an order of magnitude as GNP volume fraction increases to 0.056.

Original language	English
Pages (from-to)	285-291
Journal	Corrosion Science
Volume	136
DOIs	https://doi.org/10.1016/j.corsci.2018.03.016
Publication status	Published - 15 May 2018

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10.1016/j.corsci.2018.03.016

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abstract = "The electronic and diffusion-blocking properties of graphene nano-platelets (GNPs) are quantified with a view to understanding their action as (possible) additives to anti-corrosion coatings. Platelet size and thickness are determined by SEM and BET specific surface area measurements. A Scanning Kelvin probe is used to show that a contact potential of up to 1.2V develops between GNP particles and various metal substrates: silver, copper, iron and zinc. A novel photochemical method is used to show that oxygen permeation rates through a PVB-GNP (polyvinylbutyral) composite coating decrease by over an order of magnitude as GNP volume fraction increases to 0.056.",

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AU - Richards, C.A.J.

AU - Glover, C.F.

AU - Williams, G.

AU - McMurray, H.N.

AU - Baker, J.

PY - 2018/5/15

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AB - The electronic and diffusion-blocking properties of graphene nano-platelets (GNPs) are quantified with a view to understanding their action as (possible) additives to anti-corrosion coatings. Platelet size and thickness are determined by SEM and BET specific surface area measurements. A Scanning Kelvin probe is used to show that a contact potential of up to 1.2V develops between GNP particles and various metal substrates: silver, copper, iron and zinc. A novel photochemical method is used to show that oxygen permeation rates through a PVB-GNP (polyvinylbutyral) composite coating decrease by over an order of magnitude as GNP volume fraction increases to 0.056.

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SP - 285

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JO - Corrosion Science

JF - Corrosion Science

ER -

Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability

Abstract

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