Effect of alkyl chain length on the corrosion inhibition of mild steel in a simulated hydrochloric acid medium by a phosphonium based inhibitor
- Title
- Effect of alkyl chain length on the corrosion inhibition of mild steel in a simulated hydrochloric acid medium by a phosphonium based inhibitor
- Creator
- Subasree N.; Arockia Selvi J.; Pillai R.S.
- Description
- The corrosion inhibiting effect of three synthesised phosphonium containing ionic liquids of varying alkyl chain length, namely, butyltriphenyl phosphonium bromide (BTPPB), hexyltriphenyl phosphonium bromide (HTPPB) and hexadecyltriphenyl phosphonium bromide (HDTPPB) on mild steel, was evaluated in 1 M HCl medium. The corrosion inhibition performance was studied by gravimetric method, potentiodynamic polarization studies, electrochemical impedance spectroscopy and quantum chemical studies (DFT). However, the results of the SEM, AFM and contact angle tests confirmed that the protective layer formed on the mild steel. Furthermore, assessed the theoretical calculations for exploring the inhibition mechanism. A maximum of 95.77% inhibition efficiency was achieved using 250 ppm of HDTPPB. The obtained results showed that HDTPPB has greater inhibition ability than BTPPB and HTPPB. Adsorption studies obeyed the Langmuir adsorption isotherm. Moreover, the increased alkyl chain length of ionic liquids did increase their inhibition efficiency. 2021 Informa UK Limited, trading as Taylor & Francis Group.
- Source
- Journal of Adhesion Science and Technology, Vol-37, No. 1, pp. 83-104.
- Date
- 2023-01-01
- Publisher
- Taylor and Francis Ltd.
- Subject
- adsorption isotherm; corrosion inhibitor; ionic liquids; Mild steel; SEM
- Coverage
- Subasree N., Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, India; Arockia Selvi J., Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, India; Pillai R.S., Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, India, Department of Chemistry, CHRIST (Deemed to be University), Bengaluru, India
- Rights
- Restricted Access
- Relation
- ISSN: 1694243; CODEN: JATEE
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Subasree N.; Arockia Selvi J.; Pillai R.S., “Effect of alkyl chain length on the corrosion inhibition of mild steel in a simulated hydrochloric acid medium by a phosphonium based inhibitor,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 27, 2025, https://archives.christuniversity.in/items/show/14766.