| Autor: |
Nogueira da Cunha, Jessica, Paiva, Victor Magno, de Melo Monteiro, Alex, de Oliveira, Gustavo Almeida, da Silva Nunes, Rayani, Archanjo, Braulio Soares, Massafra de Oliveira, Sanair, Rodrigues de Araújo, Joyce, do Valle, Anita Ferreira, Almeida, Tatiana das Chagas, D’Elia, Eliane |
| Zdroj: |
Journal of Materials Research and Technology; September-October 2024, Vol. 32 Issue: 1 p1159-1172, 14p |
| Abstrakt: |
Developing a sustainable and environmentally friendly inhibitor remains an essential and challenging goal for corrosion control. Here, different extracts from the same biomass (Juçara - Euterpe edulis) were applied as a new inhibitor for mild steel in different corrosive medium: 1 mol L−1HCl (pH 0) and simulated CO2-saturated formation water (pH 5). Depending on the extraction process, the anticorrosive capacity of extracts may increase, a fact verified in gravimetric tests, reaching 94.4% maximum inhibition efficiency for the acidic medium (1000 mg L−1of Juçara pulp in 48 h of immersion) and 86.1% inhibition efficiency for the saline medium (600 mg L−1of Juçara pulp extract assisted by ultrasound in 24 h of immersion). Gravimetric tests, electrochemical tests, and surface and biochemical characterization analyses were carried out to better understand these extracts' performance. This work provides an interesting application of the same biomass effectively acting in different corrosive medium, depending on the extraction method. |
| Databáze: |
Supplemental Index |
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