An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion
An in situ surface study of the carbon dioxide corrosion of mild steel has been undertaken using the tandem technique of mixed potential/synchrotron radiation-grazing incidence X-ray diffraction (SR-GIXRD). Long-term monitoring of the mixed potential showed there was an initial shift toward cathodic...
Published in: | Journal of The Electrochemical Society |
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Language: | English |
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Electrochemical Society, Inc.
2005
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Online Access: | https://doi.org/10.1149/1.2007227 |
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ftunivscoast:usc:6730 2023-05-15T15:52:48+02:00 An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion De Marco, R Jiang, Z T Pejcic, B Poinen, E 2005 https://doi.org/10.1149/1.2007227 eng eng Electrochemical Society, Inc. usc:6730 URN:ISSN: 0013-4651 FoR 0303 (Macromolecular and Materials Chemistry) carbon compounds steel hydrogen compounds iron compounds electrolytes corrosion X-ray diffraction reduction (chemical) Journal Article 2005 ftunivscoast https://doi.org/10.1149/1.2007227 2020-05-11T22:26:12Z An in situ surface study of the carbon dioxide corrosion of mild steel has been undertaken using the tandem technique of mixed potential/synchrotron radiation-grazing incidence X-ray diffraction (SR-GIXRD). Long-term monitoring of the mixed potential showed there was an initial shift toward cathodic potentials attributable to preferential suppression of the cathodic half-reaction (viz., the reduction of carbonic acid), probably due to the formation of an adlayer of corrosion product physically blocking the cathodic reaction sites during the uniform corrosion of mild steel. Subsequently, the mixed potential displayed a gradual shift to anodic potentials, symbolizing the preferential suppression of the anodic half-reaction as the primary corrosion products [viz., Fe2(OH)2CO3, Fe2O2(CO3), Fe6(OH)12(CO3), and Fe6(OH)12(CO3)·2H2O] acquired a sufficient thickness to physically block the interface against further corrosion. Nevertheless, the corrosion product continues to grow over time, indicating that the corrosion product is discontinuous and porous, allowing the ingression of electrolyte to enable the further corrosion of the mild steel. This research has important ramifications for the field of corrosion research; it should enable researchers to develop improved methods of chemical inhibition by using compounds that can actually bind to the newly postulated corrosion products on mild steel. Article in Journal/Newspaper Carbonic acid University of the Sunshine Coast, Queensland, Australia: COAST Research Database Journal of The Electrochemical Society 152 10 B389 |
institution |
Open Polar |
collection |
University of the Sunshine Coast, Queensland, Australia: COAST Research Database |
op_collection_id |
ftunivscoast |
language |
English |
topic |
FoR 0303 (Macromolecular and Materials Chemistry) carbon compounds steel hydrogen compounds iron compounds electrolytes corrosion X-ray diffraction reduction (chemical) |
spellingShingle |
FoR 0303 (Macromolecular and Materials Chemistry) carbon compounds steel hydrogen compounds iron compounds electrolytes corrosion X-ray diffraction reduction (chemical) De Marco, R Jiang, Z T Pejcic, B Poinen, E An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion |
topic_facet |
FoR 0303 (Macromolecular and Materials Chemistry) carbon compounds steel hydrogen compounds iron compounds electrolytes corrosion X-ray diffraction reduction (chemical) |
description |
An in situ surface study of the carbon dioxide corrosion of mild steel has been undertaken using the tandem technique of mixed potential/synchrotron radiation-grazing incidence X-ray diffraction (SR-GIXRD). Long-term monitoring of the mixed potential showed there was an initial shift toward cathodic potentials attributable to preferential suppression of the cathodic half-reaction (viz., the reduction of carbonic acid), probably due to the formation of an adlayer of corrosion product physically blocking the cathodic reaction sites during the uniform corrosion of mild steel. Subsequently, the mixed potential displayed a gradual shift to anodic potentials, symbolizing the preferential suppression of the anodic half-reaction as the primary corrosion products [viz., Fe2(OH)2CO3, Fe2O2(CO3), Fe6(OH)12(CO3), and Fe6(OH)12(CO3)·2H2O] acquired a sufficient thickness to physically block the interface against further corrosion. Nevertheless, the corrosion product continues to grow over time, indicating that the corrosion product is discontinuous and porous, allowing the ingression of electrolyte to enable the further corrosion of the mild steel. This research has important ramifications for the field of corrosion research; it should enable researchers to develop improved methods of chemical inhibition by using compounds that can actually bind to the newly postulated corrosion products on mild steel. |
format |
Article in Journal/Newspaper |
author |
De Marco, R Jiang, Z T Pejcic, B Poinen, E |
author_facet |
De Marco, R Jiang, Z T Pejcic, B Poinen, E |
author_sort |
De Marco, R |
title |
An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion |
title_short |
An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion |
title_full |
An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion |
title_fullStr |
An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion |
title_full_unstemmed |
An In Situ Synchrotron Radiation Grazing Incidence X-Ray Diffraction Study of Carbon Dioxide Corrosion |
title_sort |
in situ synchrotron radiation grazing incidence x-ray diffraction study of carbon dioxide corrosion |
publisher |
Electrochemical Society, Inc. |
publishDate |
2005 |
url |
https://doi.org/10.1149/1.2007227 |
genre |
Carbonic acid |
genre_facet |
Carbonic acid |
op_relation |
usc:6730 URN:ISSN: 0013-4651 |
op_doi |
https://doi.org/10.1149/1.2007227 |
container_title |
Journal of The Electrochemical Society |
container_volume |
152 |
container_issue |
10 |
container_start_page |
B389 |
_version_ |
1766387896583979008 |