Corrosion inhibition of tetrabutylphosphonium benzotriazolate on carbon steel in acidic medium

IF 1.3 4区化学 Q4 ELECTROCHEMISTRY International Journal of Electrochemical Science Pub Date : 2024-10-05 DOI:10.1016/j.ijoes.2024.100824

Xi Huang, Haojun Jiang, Kun Cao, Wenheng Huang, Jiachun Liu, Binyue Liu, Hong Wang

{"title":"Corrosion inhibition of tetrabutylphosphonium benzotriazolate on carbon steel in acidic medium","authors":"Xi Huang, Haojun Jiang, Kun Cao, Wenheng Huang, Jiachun Liu, Binyue Liu, Hong Wang","doi":"10.1016/j.ijoes.2024.100824","DOIUrl":null,"url":null,"abstract":"<div><div>The inhibition effect of tetrabutylphosphonium benzotriazolate (TBPB) on carbon steel in a 1 mol·L<sup>−1</sup> HCl solution was investigated using a combination of analytical techniques, including polarization curve, electrochemical impedance spectroscopy, scanning electron microscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. The study revealed that TBPB acts as a mixed corrosion inhibitor for carbon steel in acidic conditions. The efficiency of corrosion inhibition was observed to increase gradually with rising TBPB concentrations, reaching a maximum of 92 % at a concentration of 10 mmol·L<sup>−1</sup>. This enhancement in corrosion inhibition efficiency is attributed to the adsorption of TBPB on the metal surface, effectively isolating it from the corrosive medium and thereby preventing corrosion reactions. Importantly, this mechanism aligns well with the Langmuir isothermal adsorption model.</div></div>","PeriodicalId":13872,"journal":{"name":"International Journal of Electrochemical Science","volume":"19 11","pages":"Article 100824"},"PeriodicalIF":1.3000,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Electrochemical Science","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1452398124003663","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}

引用次数: 0

Abstract

The inhibition effect of tetrabutylphosphonium benzotriazolate (TBPB) on carbon steel in a 1 mol·L⁻¹ HCl solution was investigated using a combination of analytical techniques, including polarization curve, electrochemical impedance spectroscopy, scanning electron microscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. The study revealed that TBPB acts as a mixed corrosion inhibitor for carbon steel in acidic conditions. The efficiency of corrosion inhibition was observed to increase gradually with rising TBPB concentrations, reaching a maximum of 92 % at a concentration of 10 mmol·L⁻¹. This enhancement in corrosion inhibition efficiency is attributed to the adsorption of TBPB on the metal surface, effectively isolating it from the corrosive medium and thereby preventing corrosion reactions. Importantly, this mechanism aligns well with the Langmuir isothermal adsorption model.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

四丁基膦苯并三唑醇在酸性介质中对碳钢的缓蚀作用

采用极化曲线、电化学阻抗谱、扫描电子显微镜、原子力显微镜和 X 射线光电子能谱等多种分析技术，研究了四丁基膦苯并三唑醇（TBPB）在 1 mol-L-1 HCl 溶液中对碳钢的缓蚀效果。研究发现，TBPB 在酸性条件下可作为碳钢的混合缓蚀剂。据观察，缓蚀效率随着 TBPB 浓度的增加而逐渐提高，当浓度为 10 mmol-L-1 时，缓蚀效率最高可达 92%。这种缓蚀效率的提高归因于 TBPB 吸附在金属表面，有效地将金属表面与腐蚀介质隔离，从而阻止了腐蚀反应。重要的是，这种机理与 Langmuir 等温吸附模型十分吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

International Journal of Electrochemical Science 工程技术-电化学

CiteScore

3.00

自引率

20.00%

发文量

714

审稿时长

2.6 months

期刊介绍： International Journal of Electrochemical Science is a peer-reviewed, open access journal that publishes original research articles, short communications as well as review articles in all areas of electrochemistry: Scope - Theoretical and Computational Electrochemistry - Processes on Electrodes - Electroanalytical Chemistry and Sensor Science - Corrosion - Electrochemical Energy Conversion and Storage - Electrochemical Engineering - Coatings - Electrochemical Synthesis - Bioelectrochemistry - Molecular Electrochemistry