Journal article
A peony-leaves-derived liquid corrosion inhibitor: protecting carbon steel from NaCl
Green chemistry letters and reviews, Vol.10(4), pp.359-379
10/02/2017
Handle:
https://hdl.handle.net/2376/123250
Abstract
A liquid mixture was developed from waste peony leaves through a zero-waste chemical/biological process. The inhibition effect of different concentrations of peony leaves derived solution (0-3 vol.%, PLS0-3) on C1010 carbon steel in 3.5 wt.% NaCl was investigated over time using electrochemical measurements. Chemical analyses were performed to reveal the main compounds of this inhibitor. Surface analyses together with water contact angle measurements were employed to study the characteristics of the steel surface affected. Semi-empirical calculations with PM3 method were used to find the relationship between molecular structure and inhibiting effect of PLS. The inhibitor was stable over time and its main active ingredients were C
19
H
27
N
4
O
10
P and C
17
H
16
N
3
O
9
P that adsorb onto the steel surface, block cathodic active sites, make the surface hydrophobic, decrease the surface free energy, and facilitate the formation of a passive layer. A good correlation was found between experimentally determined inhibition efficiency and theoretically calculated properties of PLS.
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Details
- Title
- A peony-leaves-derived liquid corrosion inhibitor: protecting carbon steel from NaCl
- Creators
- Mehdi Honarvar Nazari - Laboratory of Corrosion Science & Electrochemical Engineering, Department of Civil & Environmental Engineering, Washington State UniversityMehdi Salih Shihab - Department of Chemistry, College of Science, Al-Nahrain UniversityLing Cao - Western Transportation Institute, College of Engineering, Montana State UniversityEden Adele Havens - Laboratory of Corrosion Science & Electrochemical Engineering, Department of Civil & Environmental Engineering, Washington State UniversityXianming Shi - Laboratory of Corrosion Science & Electrochemical Engineering, Department of Civil & Environmental Engineering, Washington State University
- Publication Details
- Green chemistry letters and reviews, Vol.10(4), pp.359-379
- Academic Unit
- Civil and Environmental Engineering, Department of
- Publisher
- Taylor & Francis
- Grant note
- Center for Environmentally Sustainable Transportation / U.S. DOT (10.13039/100000140) 51278390 / National Natural Science Foundation of China (10.13039/501100001809)
- Identifiers
- 99900612058901842
- Language
- English
- Resource Type
- Journal article