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Mechanism of corrosion protection in chloride solution by an apple-based green inhibitor: experimental and theoretical studies4.00 MB
CC BY V4.0, Open Access
Journal article
Mechanism of corrosion protection in chloride solution by an apple-based green inhibitor: experimental and theoretical studies
Journal of Infrastructure Preservation and Resilience, Vol.1(1), pp.1-19
06/05/2020
Handle:
https://hdl.handle.net/2376/123425
Abstract
Abstract Preservation of metals in infrastructures and other assets requires cost-effective and sustainable solutions such as green corrosion inhibitors. This study assesses an apple pomace-derived green inhibitor synthesized by an innovative zero-waste method. Electrochemical measurements revealed the high performance of this liquid extract in reducing the corrosion of carbon steel in NaCl brine. The chemical composition of this inhibitor was characterized by liquid chromatography mass spectroscopy (LC-MS) to shed light on the corrosion inhibition mechanism. Based on LC-MS analysis, the results of surface analysis were interpreted. Specifically, the major corrosion inhibitor agent in the apple pomace extract was determined as C26H50NO7P (1-Linoleoyl-sn-glycero-3-phosphocholine), which can adsorb onto the steel surface to form a barrier layer and serve as a blocker of active anodic sites. Further study showed that the apple extract adsorption follows the Langmuir isotherm, and physical adsorption is dominant (vs. chemical adsorption). Theoretical calculations using quantum chemistry proposed a physisorption mechanism for the protection of steel by C26H50NO7P molecules. Graphical abstract
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Details
- Title
- Mechanism of corrosion protection in chloride solution by an apple-based green inhibitor: experimental and theoretical studies
- Creators
- Mehdi Honarvar NazariMehdi Salih ShihabEden Adele HavensXianming Shi
- Publication Details
- Journal of Infrastructure Preservation and Resilience, Vol.1(1), pp.1-19
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Springer International Publishing
- Grant note
- 1638384 / National Science Foundation (http://dx.doi.org/10.13039/100000001) Tier 1 UTC: CESTiCC / USDOT
- Identifiers
- 99900612710501842
- Language
- English
- Resource Type
- Journal article