Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/35723
Title: | Molecular dynamics model to explore the initial stages of anion exchange involving layered double hydroxide particles |
Author: | Novell Leruth, Gerard Kuznetsova, Alena Tedim, João Gomes, José R. B. Galvão, Tiago L. P. |
Keywords: | Layered double hydroxides Molecular dynamics Anion exchange Delamination Corrosion inhibitor Self-healing |
Issue Date: | 17-Nov-2022 |
Publisher: | MDPI |
Abstract: | A classical molecular dynamics (MD) model of fully unconstrained layered double hydroxide (LDH) particles in aqueous NaCl solution was developed to explore the initial stages of the anion exchange process, a key feature of LDHs for their application in different fields. In particular, this study focuses on the active corrosion protection mechanism, where LDHs are able to entrap aggressive species from the solution while releasing fewer corrosive species or even corrosion inhibitors. With this purpose in mind, it was explored the release kinetics of the delivery of nitrate and 2-mercaptobenzothiazole (MBT, a typical corrosion inhibitor) from layered double hydroxide particles triggered by the presence of aggressive chloride anions in solution. It was shown that the delamination of the cationic layers occurs during the anion exchange process, which is especially evident in the case of MBT-. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/35723 |
DOI: | 10.3390/nano12224039 |
ISSN: | 2079-4991 |
Publisher Version: | https://www.mdpi.com/2079-4991/12/22/4039 |
Appears in Collections: | CICECO - Artigos DQ - Artigos DEMaC - Artigos |
Files in This Item:
File | Description | Size | Format | |
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nanomaterials-12-04039.pdf | Publisher's version | 3.92 MB | Adobe PDF | View/Open |
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