2026-06-01T17:58:25Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/1180902025-03-18T14:23:10Zcom_20.500.14352_14col_20.500.14352_15
Corrosion inhibitor from nature: Fundamentals of tannic acid inhibition for AA2024 alloy
Del Olmo Martínez, Rubén
Bastos, Alexandre
Yasakau, Kiryl
Sushkova, Alesia
Arrabal Durán, Raúl
Tedim, João
620
AA2024
Aluminium
Tannic acid
Corrosion inhibitor
Eco-friendly
Green inhibition
Materiales
3312 Tecnología de Materiales
This study addresses the fundamentals of corrosion inhibition of AA2024 alloy by tannic acid (TA), a Cr-free and eco-friendly natural product. To this end, the AA2024 alloy was immersed in NaCl solution (50 mM) with different TA concentrations (0.1–10 mM) for 7 days. Surface (SEM, Raman, and SKPFM) and electrochemical analyses (EIS, PDP, and SVET) revealed mixed inhibition after 1 day of immersion in TA solution. Long-term immersion tests in TA solutions produced a tannate-rich oxide film on the surface. The films with low tannate content (formed in 0.1 and 1 mM TA) showed the highest stability and corrosion resistance.
Agencia Estatal de Investigación (España)
Ministerio de Ciencia, Innovación y Universidades (España)
Fundação para a Ciência e a Tecnologia (Portugal)
Fundación Margarita Salas (España)
Fondo Social Europeo
Depto. de Ingeniería Química y de Materiales
Fac. de Ciencias Químicas
TRUE
pub
2025-02-14T12:56:30Z
2025-02-14T12:56:30Z
2024-10-05
journal article
VoR
https://hdl.handle.net/20.500.14352/118090
XXXX-XXXX
10.1016/j.apsusc.2024.161434
eng
info:eu-repo/grantAgreement/MICINN/AEI/FEDER/UE/PID2021-124341OB-C22
info:eu-repo/grantAgreement/FCT/MEC/PIDDAC/UIDB/50011/2020/DOI10.54499/UIDB/50011/2020
info:eu-repo/grantAgreement/FCT/MEC/PIDDAC/UIDP/50011/2020/DOI10.54499/UIDP/50011/2020
info:eu-repo/grantAgreement/FCT/MEC/PIDDAC/LA/P/0006/2020/DOI10.54499/LA/P/0006/2020
info:eu-repo/grantAgreement/MargaritaSalas//CT18/22
info:eu-repo/grantAgreement/FCT//2021.00842.CEECIND
info:eu-repo/grantAgreement/FCT/FSE/2021.07744.BD
info:eu-repo/grantAgreement/MICINN/AEI/FEDER/UE/PID2021-124341OB-C22
Del Olmo, Rubén, et al. «Corrosion Inhibitor from Nature: Fundamentals of Tannic Acid Inhibition for AA2024 Alloy». Applied Surface Science, vol. 680, enero de 2025, p. 161434. DOI.org (Crossref), https://doi.org/10.1016/j.apsusc.2024.161434.
Attribution-NonCommercial-ShareAlike 4.0 International
http://creativecommons.org/licenses/by-nc-sa/4.0/
open access
application/pdf
Elsevier