Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosion

Inhibition effects of an γ-(2,3-epoxypropoxy) propyl-trimethoxy-silane (abbreviated as epoxy-silane) and 3,6-Dioxa-1,8-octanedithiol (abbreviated as DOT) film on copper corrosion in 3.5 wt% NaCl solution were studied by digital hsolography, electrochemical methods and surface characterization approa...

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Main Authors: Chen Sang, Juan Qiu, Boyu Yuan, Kaiyu Zhang, Nan Huang, Qinghong Wang, Houyi Ma, Liang Li, Chao Wang
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Journal of Materials Research and Technology
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Online Access:http://www.sciencedirect.com/science/article/pii/S2238785425001425
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author Chen Sang
Juan Qiu
Boyu Yuan
Kaiyu Zhang
Nan Huang
Qinghong Wang
Houyi Ma
Liang Li
Chao Wang
author_facet Chen Sang
Juan Qiu
Boyu Yuan
Kaiyu Zhang
Nan Huang
Qinghong Wang
Houyi Ma
Liang Li
Chao Wang
author_sort Chen Sang
collection DOAJ
description Inhibition effects of an γ-(2,3-epoxypropoxy) propyl-trimethoxy-silane (abbreviated as epoxy-silane) and 3,6-Dioxa-1,8-octanedithiol (abbreviated as DOT) film on copper corrosion in 3.5 wt% NaCl solution were studied by digital hsolography, electrochemical methods and surface characterization approaches. In-situ observation of the concentration change at the electrode/electrolyte interface during dynamic potential scan by holography revealed that the dissolution of copper was inhibited significantly and no CuCl film formation was found on the surface of the modified film. Sputtering measurements by X-ray photoelectron spectroscopy showed that some Cl− ions permeated into the outer layer of the epoxy-silane/DOT film and formed CuCl interlayer with the Cu+ ions in the film. The CuCl interlayer in the modified film blocked its micropores, inhibiting the copper corrosion. The initial electro-dissolution reactions on bare copper and modified copper have been discussed accordingly. The study proved the digital holography to be an effective method to evaluate anti-corrosion performance and elucidate the related mechanisms in particularly.
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institution Kabale University
issn 2238-7854
language English
publishDate 2025-03-01
publisher Elsevier
record_format Article
series Journal of Materials Research and Technology
spelling doaj-art-ef232b006bbf434dab67cd3e9269770b2025-01-26T05:03:56ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013519411949Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosionChen Sang0Juan Qiu1Boyu Yuan2Kaiyu Zhang3Nan Huang4Qinghong Wang5Houyi Ma6Liang Li7Chao Wang8Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, ChinaKey Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, ChinaJiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, China; Corresponding author.Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, 221116, ChinaSchool of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, ChinaSchool of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, China; Corresponding author.Key Laboratory of Colloid and Interface Chemistry of State Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, ChinaSchool of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, ChinaSchool of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, China; Corresponding author.Inhibition effects of an γ-(2,3-epoxypropoxy) propyl-trimethoxy-silane (abbreviated as epoxy-silane) and 3,6-Dioxa-1,8-octanedithiol (abbreviated as DOT) film on copper corrosion in 3.5 wt% NaCl solution were studied by digital hsolography, electrochemical methods and surface characterization approaches. In-situ observation of the concentration change at the electrode/electrolyte interface during dynamic potential scan by holography revealed that the dissolution of copper was inhibited significantly and no CuCl film formation was found on the surface of the modified film. Sputtering measurements by X-ray photoelectron spectroscopy showed that some Cl− ions permeated into the outer layer of the epoxy-silane/DOT film and formed CuCl interlayer with the Cu+ ions in the film. The CuCl interlayer in the modified film blocked its micropores, inhibiting the copper corrosion. The initial electro-dissolution reactions on bare copper and modified copper have been discussed accordingly. The study proved the digital holography to be an effective method to evaluate anti-corrosion performance and elucidate the related mechanisms in particularly.http://www.sciencedirect.com/science/article/pii/S2238785425001425CopperSelf-assembled epoxy-silane/dithiol filmElectrode/electrolyte interfaceInhibition mechanismDigital holography
spellingShingle Chen Sang
Juan Qiu
Boyu Yuan
Kaiyu Zhang
Nan Huang
Qinghong Wang
Houyi Ma
Liang Li
Chao Wang
Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosion
Journal of Materials Research and Technology
Copper
Self-assembled epoxy-silane/dithiol film
Electrode/electrolyte interface
Inhibition mechanism
Digital holography
title Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosion
title_full Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosion
title_fullStr Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosion
title_full_unstemmed Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosion
title_short Inhibition mechanism of self-assembled epoxy-silane/dithiol film on copper corrosion
title_sort inhibition mechanism of self assembled epoxy silane dithiol film on copper corrosion
topic Copper
Self-assembled epoxy-silane/dithiol film
Electrode/electrolyte interface
Inhibition mechanism
Digital holography
url http://www.sciencedirect.com/science/article/pii/S2238785425001425
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