Ircinia strobilina crude extract as corrosion inhibitor for mild steel in acid medium

Ircinia strobilina crude extract as corrosion inhibitor for mild steel in acid medium

The marine sponge Ircinia strobilina crude extract (ISCE) was analyzed as a corrosion inhibitor for mild steel in 1 mol L−1 HCl. The corrosion behavior was evaluated using weight loss method, potentiodynamic polarization, linear polarization resistance and electrochemical impedance spectroscopy. The...

Full description

Saved in:
Bibliographic Details
Published in:Electrochimica acta Vol. 312; pp. 137 - 148
Main Authors: Fernandes, Caio Machado, Ferreira Fagundes, Thayssa da S., Escarpini dos Santos, Nazir, Shewry de M. Rocha, Talita, Garrett, Rafael, Borges, Ricardo Moreira, Muricy, Guilherme, Valverde, Alessandra Leda, Ponzio, Eduardo Ariel
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 20-07-2019
Elsevier BV
Subjects:
Acid medium
Corrosion
Corrosion inhibitors
Corrosion prevention
Diffuse reflectance spectroscopy
Electrochemical impedance spectroscopy
Electrochemical measurements
Fourier transforms
Ircinia strobilina
LC-MS
Linear polarization
Liquid chromatography
Low carbon steels
Mass spectrometry
Mild steel
Non-toxic inhibitor
Organic chemistry
Weight loss
Non-toxic inhibitor
LC-MS
Electrochemical measurements
Mild steel
Ircinia strobilina
Acid medium
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The marine sponge Ircinia strobilina crude extract (ISCE) was analyzed as a corrosion inhibitor for mild steel in 1 mol L−1 HCl. The corrosion behavior was evaluated using weight loss method, potentiodynamic polarization, linear polarization resistance and electrochemical impedance spectroscopy. The results show an increase in anticorrosive efficiency as ISCE concentrations increase (from ±55% at 0.5 g L−1 to ± 82% at 2.0 g L−1). The surface was examined by diffuse reflectance infrared Fourier transform spectroscopy. The composition of the crude extract was chemically characterized by liquid chromatography-high resolution mass spectrometry. The protection mechanism was discussed. •The crude extract of a marine sponge (ISCE), a novelty in the corrosion inhibitor field.•ISCE was tested as a renewable and sustainable corrosion inhibitor for mild steel.•ISCE acts as a mixed inhibitor with best efficiency around 82% with 2.0 g L−1.•New vision for classical electrochemical analyses.•ISCE was characterized by liquid chromatography-high resolution mass spectrometry.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2019.04.148