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

Calvin Richards, C.F. Glover, G. Williams, Hamilton McMurray, Jenny Baker, Geraint Williams

Corrosion Science, Volume: 136, Pages: 285 - 291

Swansea University Authors: Calvin Richards, Hamilton McMurray, Jenny Baker, Geraint Williams

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DOI (Published version): 10.1016/j.corsci.2018.03.016

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 Kel...

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Published in: Corrosion Science
ISSN: 0010-938X
Published: 2018
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URI: https://cronfa.swan.ac.uk/Record/cronfa39089
first_indexed 2018-03-15T14:10:36Z
last_indexed 2021-01-15T04:00:54Z
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spelling 2021-01-14T12:59:13.1102944 v2 39089 2018-03-15 Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability fba04fac258816964c5a4ba702b025e9 Calvin Richards Calvin Richards true false 56fc1b17ffc3bdf6039dc05c6eba7f2a Hamilton McMurray Hamilton McMurray true false 6913b56f36f0c8cd34d8c9040d2df460 Jenny Baker Jenny Baker true false 0d8fc8d44e2a3c88ce61832f66f20d82 Geraint Williams Geraint Williams true false 2018-03-15 EAAS 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 1.4 V 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. Journal Article Corrosion Science 136 285 291 0010-938X Graphene nano-platelets; contact potential; scanning Kelvin probe; oxygen permeability 15 5 2018 2018-05-15 10.1016/j.corsci.2018.03.016 COLLEGE NANME Engineering and Applied Sciences School COLLEGE CODE EAAS Swansea University 2021-01-14T12:59:13.1102944 2018-03-15T11:24:45.1634814 Faculty of Science and Engineering School of Engineering and Applied Sciences - Materials Science and Engineering Calvin Richards 1 C.F. Glover 2 G. Williams 3 Hamilton McMurray 4 Jenny Baker 5 Geraint Williams 6 0039089-15032018112548.pdf richards2018.pdf 2018-03-15T11:25:48.5330000 Output 9411857 application/pdf Accepted Manuscript true 2019-03-14T00:00:00.0000000 true eng
title Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
spellingShingle Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
Calvin Richards
Hamilton McMurray
Jenny Baker
Geraint Williams
title_short Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_full Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_fullStr Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_full_unstemmed Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
title_sort Evaluation of multi-layered graphene nano-platelet composite coatings for corrosion control part I - contact potentials and gas permeability
author_id_str_mv fba04fac258816964c5a4ba702b025e9
56fc1b17ffc3bdf6039dc05c6eba7f2a
6913b56f36f0c8cd34d8c9040d2df460
0d8fc8d44e2a3c88ce61832f66f20d82
author_id_fullname_str_mv fba04fac258816964c5a4ba702b025e9_***_Calvin Richards
56fc1b17ffc3bdf6039dc05c6eba7f2a_***_Hamilton McMurray
6913b56f36f0c8cd34d8c9040d2df460_***_Jenny Baker
0d8fc8d44e2a3c88ce61832f66f20d82_***_Geraint Williams
author Calvin Richards
Hamilton McMurray
Jenny Baker
Geraint Williams
author2 Calvin Richards
C.F. Glover
G. Williams
Hamilton McMurray
Jenny Baker
Geraint Williams
format Journal article
container_title Corrosion Science
container_volume 136
container_start_page 285
publishDate 2018
institution Swansea University
issn 0010-938X
doi_str_mv 10.1016/j.corsci.2018.03.016
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Materials Science and Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Materials Science and Engineering
document_store_str 1
active_str 0
description 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 1.4 V 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.
published_date 2018-05-15T04:15:35Z
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