Ircinia strobilina crude extract as corrosion inhibitor for mild steel in acid medium
| Autor: | Talita Shewry de M. Rocha, Ricardo Moreira Borges, Eduardo A. Ponzio, Thayssa da Silva Ferreira Fagundes, Guilherme Muricy, Nazir Escarpini dos Santos, Rafael Garrett, Alessandra L. Valverde, Caio Machado Fernandes |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
biology
Diffuse reflectance infrared fourier transform General Chemical Engineering Potentiodynamic polarization 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology biology.organism_classification 01 natural sciences Ircinia strobilina 0104 chemical sciences Dielectric spectroscopy Corrosion inhibitor chemistry.chemical_compound chemistry Electrochemistry Composition (visual arts) 0210 nano-technology Corrosion behavior Nuclear chemistry |
| Zdroj: | Electrochimica Acta. 312:137-148 |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2019.04.148 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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