RT Journal Article
T1 Corrosion inhibitor from nature: Fundamentals of tannic acid inhibition for AA2024 alloy
A1 Del Olmo Martínez, Rubén
A1 Bastos, Alexandre
A1 Yasakau, Kiryl
A1 Sushkova, Alesia
A1 Arrabal Durán, Raúl
A1 Tedim, João
AB 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.
PB Elsevier
YR 2024
FD 2024-10-05
LK https://hdl.handle.net/20.500.14352/118090
UL https://hdl.handle.net/20.500.14352/118090
LA eng
NO 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.
NO Agencia Estatal de Investigación (España)
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Fundação para a Ciência e a Tecnologia (Portugal)
NO Fundación Margarita Salas (España)
NO Fondo Social Europeo
DS Docta Complutense
RD 9 abr 2025