Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 499, Issue -, Pages 110-119Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2017.03.091
Keywords
Mild steel; Electrochemical measurements; Modeling studies; Eco-friendly inhibitor; Longan
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Funding
- National Natural Science Foundation of China [21675131]
- Municipal Science Foundation of Chongqing City [CSTC-2015jcyjB50001]
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Longan seed and peel were extracted and used for impeding the corrosion of mild steel in hydrochloric acid solution. Experimental analyses indicate that the water extract of Longan's seed and peel, a mixed type inhibitor, can be chemically adsorbed onto the steel surface, and its inhibition effect rises with increasing extract concentration. To understand the adsorption mechanism and the contributions of the four main compounds of the extract to corrosion protection effect, quantum chemical methods and infrared spectrum were also employed. Theoretically, four main antioxidant compounds were regarded as effective components in the water extract of Longan's seed and peel. (C) 2017 Elsevier Inc. All rights reserved.
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