Investigation of Mild Steel Corrosion Inhibition with Tamarindus indica Fiber Extract in 0.5 M Trichloroacetic Acid: Adsorption, Antifouling, Electrochemical and DFT Studies

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2025-03-26 DOI:10.1134/S2070205124702538

Baluchamy Tamilselvi, Durvas Seshian Bhuvaneshwari, Sethuramasamy Padmavathy, Varatharaj Rajapandian, Periyakaruppan Karuppasamy

{"title":"Investigation of Mild Steel Corrosion Inhibition with Tamarindus indica Fiber Extract in 0.5 M Trichloroacetic Acid: Adsorption, Antifouling, Electrochemical and DFT Studies","authors":"Baluchamy Tamilselvi, Durvas Seshian Bhuvaneshwari, Sethuramasamy Padmavathy, Varatharaj Rajapandian, Periyakaruppan Karuppasamy","doi":"10.1134/S2070205124702538","DOIUrl":null,"url":null,"abstract":"The as-extracted Tamarindus indica fiber (TIF) extract and its structural insights were analyzed successfully by spectral, electrochemical, analytical and theoretical techniques. The maximum corrosion inhibition efficiency (90.16%) was found by weight loss technique at 308 K. Monolayer adsorption was found and it obeyed the Langmuir adoption model. The –∆H* values support an exothermic process and –∆S* values confirm TIF adsorbed on mild steel surface. The –∆G° values reveal that the TIF adsorption on mild steel is a spontaneous process. Mixed type inhibition behavior was confirmed by Tafel plots. Increased trend of charge transfer resistance (Rct) and decreased trend of double layer capacitance (Cdl) with increasing TIF (0–25 mg/L) concentration by Nyquist plots. FTIR and UV-Visible result confirms the mild steel-TIF extract complex formation. FE-SEM, EDAX, mapping analysis and XPS study supports the adsorption of TIF extract on mild steel surface. DFT study suggests that the biomolecules present in TIF extract is responsible for the formation mono adsorption layer on mild steel surface. An appropriate mechanism for mild steel corrosion inhibition with TIF extract in 0.5 M TCA was proposed.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 6","pages":"1200 - 1221"},"PeriodicalIF":1.1000,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Protection of Metals and Physical Chemistry of Surfaces","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S2070205124702538","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}

引用次数: 0

Abstract

The as-extracted Tamarindus indica fiber (TIF) extract and its structural insights were analyzed successfully by spectral, electrochemical, analytical and theoretical techniques. The maximum corrosion inhibition efficiency (90.16%) was found by weight loss technique at 308 K. Monolayer adsorption was found and it obeyed the Langmuir adoption model. The –∆H* values support an exothermic process and –∆S* values confirm TIF adsorbed on mild steel surface. The –∆G° values reveal that the TIF adsorption on mild steel is a spontaneous process. Mixed type inhibition behavior was confirmed by Tafel plots. Increased trend of charge transfer resistance (R_ct) and decreased trend of double layer capacitance (C_dl) with increasing TIF (0–25 mg/L) concentration by Nyquist plots. FTIR and UV-Visible result confirms the mild steel-TIF extract complex formation. FE-SEM, EDAX, mapping analysis and XPS study supports the adsorption of TIF extract on mild steel surface. DFT study suggests that the biomolecules present in TIF extract is responsible for the formation mono adsorption layer on mild steel surface. An appropriate mechanism for mild steel corrosion inhibition with TIF extract in 0.5 M TCA was proposed.

Abstract Image

查看原文本刊更多论文

罗望子纤维提取物在 0.5 M 三氯醋酸中抑制低碳钢腐蚀的研究：吸附、防污、电化学和 DFT 研究

通过光谱、电化学、分析和理论技术，成功地分析了萃取后的罗望子纤维（TIF）提取物及其结构。在 308 K 条件下，通过失重技术发现了最大的缓蚀效率（90.16%）。-∆H* 值支持放热过程，而 -∆S* 值证实了 TIF 吸附在低碳钢表面。-∆G° 值表明 TIF 在低碳钢上的吸附是一个自发过程。塔菲尔图证实了混合型抑制行为。奈奎斯特图显示，随着 TIF（0-25 mg/L）浓度的增加，电荷转移电阻（Rct）呈上升趋势，双层电容（Cdl）呈下降趋势。傅立叶变换红外光谱（FTIR）和紫外可见光谱（UV-Visible）结果证实了低碳钢-TIF 提取物复合物的形成。FE-SEM、EDAX、制图分析和 XPS 研究证实了 TIF 提取物在软钢表面的吸附作用。DFT 研究表明，TIF 提取物中的生物分子是在低碳钢表面形成单吸附层的原因。提出了 TIF 提取物在 0.5 M TCA 中抑制低碳钢腐蚀的适当机制。

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分钟内获得全文求助全文

来源期刊

Protection of Metals and Physical Chemistry of Surfaces 工程技术-冶金工程

CiteScore

1.90

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.