Synthesis and anti-corrosion performance of Adenine-L-Alanine ramification

Hu, Ke, Gu, Hubo, Zhuang, Jia, Zeng, Xianguang, Yan, Li, Jiang, Yanjun, Guo, Qipeng and Ding, Jiating 2016, Synthesis and anti-corrosion performance of Adenine-L-Alanine ramification, Journal of adhesion science and technology, vol. 30, no. 8, pp. 851-865, doi: 10.1080/01694243.2015.1127089.

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Title Synthesis and anti-corrosion performance of Adenine-L-Alanine ramification
Author(s) Hu, Ke
Gu, Hubo
Zhuang, Jia
Zeng, Xianguang
Yan, Li
Jiang, Yanjun
Guo, QipengORCID iD for Guo, Qipeng
Ding, Jiating
Journal name Journal of adhesion science and technology
Volume number 30
Issue number 8
Start page 851
End page 865
Total pages 15
Publisher Taylor and Francis
Place of publication Oxford, Eng.
Publication date 2016
ISSN 0169-4243
Summary In this paper, a new amino acid derivative, namely Adenine-L-Alanine ramification (ALAR) was synthesized and investigated as a green corrosion inhibitor for X80 pipeline steel in 0.1 mol/L hydrochloric acid solution using the weight loss, AC impedance, and polarization curve method. The structure of the derivative was characterized by IR and UV–vis spectrum. The weight loss and AC impedance found that the inhibition efficiency increased with the increase in concentration of the inhibitor but decreased with rise in temperature, the corrosion inhibition efficiency attains 91.26% in 8 × 10−2 g/L concentration at 30 °C. The polarization studies showed that the studied amino acid derivative can be used as a corrosion inhibitor. The surface of inhibited and uninhibited specimens was analyzed by scanning electron microscopy and the adsorption of the inhibitor on the mild steel surface obeys Langmuir adsorption isotherm. The quantum chemical descriptors such as the energy of highest occupied molecular orbital, energy of lowest unoccupied molecular orbital were calculated and the inhibition mechanism can be analyzed by the distribution of electrons. Analysis indicated that the inhibitor molecular and empty d orbital of metal forms the coordination bond, covers on the surface of metal, and prevents corrosion reaction.
Language eng
DOI 10.1080/01694243.2015.1127089
Field of Research 091205 Functional Materials
0904 Chemical Engineering
0913 Mechanical Engineering
Socio Economic Objective 860605 Paints
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Taylor and Francis
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Document type: Journal Article
Collection: Institute for Frontier Materials
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