Isoindigo derivatives as some potential corrosion inhibitors for mild steel in hydrochloric acid solution: Synthesis, experimental and theoretical studies

被引：14

作者：

Sun, Qinghao ^{[1
]}

Fu, Shaopeng ^{[1
]}

Peng, Yichun ^{[2
]}

Li, Pangang ^{[2
]}

Ma, Hongmei ^{[1
]}

Fang, Zheng ^{[1
]}

Ma, Tianfu ^{[1
]}

Zhang, Rongling ^{[3
]}

Liang, Zezhou ^{[4
]}

Li, Jianfeng ^{[1
]}

机构：

[1] Lanzhou Jiaotong Univ, Sch Mat Sci & Engn, Lanzhou, Peoples R China

[2] Lanzhou Inst Technol, Sch Civil Engn, Lanzhou, Peoples R China

[3] Lanzhou Jiaotong Univ, Sch Civil Engn, Lanzhou 730070, Peoples R China

[4] Xi An Jiao Tong Univ, Fac Elect & Informat Engn, Sch Elect Sci & Engn, Xian, Peoples R China

来源：

JOURNAL OF MOLECULAR STRUCTURE | 2024年 / 1312卷

关键词：

Green corrosion inhibitors; Carbon steel; Weight loss measurement; DFT; CARBON-STEEL; ADSORPTION; BEHAVIOR; SURFACTANTS; ENVIRONMENT;

D O I：

10.1016/j.molstruc.2024.138480

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This investigation synthesized two isoindigo derivatives (IIDBr-NBr and IIDBr-MBr). These derivatives were then applied as green corrosion inhibitors for mild steel in a 1 mol L -1 HCl aqueous solution. The study investigated the corrosion inhibition performance of IIDBr-NBr and IIDBr-MBr through electrochemical and weight loss (WL) measurements, as well as surface analysis (SEM, AFM and XPS). The results showed that both IIDBr-NBr and IIDBr-MBr exhibited excellent corrosion inhibition performance (inhibition efficiency of 96.27 % for IIDBr-NBr and 96.46 % for IIDBr-MBr). Quantum chemical calculations based on density functional theory (DFT) and molecular dynamics (MD) were used to reveal the adsorption mechanisms of IIDBr-NBr and IIDBr-MBr at the steel/solution interface.

引用

页数：15

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