Combining electrochemical, surface topography analysis, and theoretical calculation methods to insight into the anti-corrosion property of Syzygium samarangense leaf extract

被引：24

作者：

Zhou, Yang ^{[1
,2
]}

Zhu, Chong ^{[3
]}

Xu, Shenying ^{[1
]}

Xiang, Bin ^{[3
]}

Marzouki, Riadh ^{[4
,5
]}

机构：

[1] Yibin Univ, Sch Chem & Chem Engn, Yibin 644000, Peoples R China

[2] Chongqing Univ, Analyt & Testing Ctr, Chongqing 400044, Peoples R China

[3] Chongqing Univ, Sch Chem & Chem Engn, Chongqing 400044, Peoples R China

[4] King Khalid Univ, Coll Sci, Chem Dept, Abha 61413, Saudi Arabia

[5] Univ Sfax, Fac Sci, Chem Dept, Sfax 3000, Tunisia

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2021年 / 102卷

关键词：

Q235; steel; Corrosion inhibitor; Syzygium samarangense leaves extract; Electrochemical experiments; Quantum chemical calculations; EFFECTIVE CORROSION-INHIBITORS; MILD-STEEL; COPPER CORROSION; SULFURIC-ACID; AQUEOUS EXTRACT; LEAVES EXTRACT; HCL SOLUTION; GREEN; ADSORPTION; PERFORMANCE;

D O I：

10.1016/j.jiec.2021.07.016

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The anti-corrosion ability of Syzygium samarangense leaf extract (SSLE) was studied using electrochemical ways, topography research and theoretical calculations. The results of electrochemical tests indicated that SSLE can effectually control the Q235 steel corrosion in sulfuric acid environment. When the concentration of SSLE was 400 mg/L, its anti-corrosion ability can be close to 90%. SSLE can efficaciously restrict the cathodic and anodic reactions, and can still emerge high corrosion inhibition character at a certain temperatures scope. The surface morphology test shows that the Q235 steel becomes smooth and bright after adding SSLE. Theoretical calculation data indicated that SSLE can manifest high corrosion inhibition performance. The adsorption of SSLE at the solution/surfaces of steel accords with the Langmuir adsorption model. (c) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：302 / 311

页数：10

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