Derris Indica Leaves Extract as a Green Inhibitor for the Corrosion of Aluminium in Alkaline Medium
- Title
- Derris Indica Leaves Extract as a Green Inhibitor for the Corrosion of Aluminium in Alkaline Medium
- Creator
- Nambiar N.K.; Brindha D.; Punniyakotti P.; Venkatraman B.R.; Angaiah S.
- Description
- The corrosion inhibitive effect of Derris indica leaves extract (DILE) on aluminium in 1 M NaOH is investigated at different temperatures. For this purpose, weight loss studies and electrochemical methods including potentiodynamic polarization (PDP) and electrochemical impedance spectroscopy (EIS) technique are employed. Surface analysis of the treated and untreated aluminium coupons are done by using metallurgical microscopy. About 60.2% of maximum corrosion inhibition efficiency is attained with an optimum inhibitor concentration of 1.2 g/L. Both weight loss and electrochemical studies confirmed that DILE plays a crucial role in the formation of a protective layer over metal surfaces. Also, electrochemical measurements revealed that DILE behaves as a mixed type of corrosion inhibitor. The kinetic parameters and thermodynamic parameters are calculated using Arrhenius theory and transition state theory. Langmuir adsorption isotherm was found to be the best fit and physical adsorption mechanism was proposed. En ineered Science Publisher LLC 2022
- Source
- Engineered Science, Vol-17, pp. 167-175.
- Date
- 2022-01-01
- Publisher
- Engineered Science Publisher
- Subject
- Aluminium corrosion; Derris indica; Green inhibitors; Potentiodynamic polarization studies
- Coverage
- Nambiar N.K., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India, Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, 560029, India; Brindha D., PG & Research Dept. of Chemistry, Periyar EVR College, Trichy, 620023, India; Punniyakotti P., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India; Venkatraman B.R., PG & Research Dept. of Chemistry, Periyar EVR College, Trichy, 620023, India; Angaiah S., Electro-Materials Research Laboratory, Centre for Nanoscience and Technology, Pondicherry University, Puducherry, 605014, India
- Rights
- All Open Access; Bronze Open Access
- Relation
- ISSN: 2576988X
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Nambiar N.K.; Brindha D.; Punniyakotti P.; Venkatraman B.R.; Angaiah S., “Derris Indica Leaves Extract as a Green Inhibitor for the Corrosion of Aluminium in Alkaline Medium,” CHRIST (Deemed To Be University) Institutional Repository, accessed April 28, 2025, https://archives.christuniversity.in/items/show/15442.