{"title":"Corrosion Inhibition of Aluminum in 1.0 M HCl Solution Using Cystoseira Myrica Extract","authors":"Samar Y. Al-Nami","doi":"10.3103/S1068375522030115","DOIUrl":null,"url":null,"abstract":"<p>Potentiodynamic polarization, electrochemical impedance spectroscopy, mass loss, and hydrogen evolutions techniques were used to investigate the effect of the plant extract <i>Cystoseira myrica</i> as corrosion inhibitor for aluminum in 1 M HCl. All those measurements showed that the effectiveness of inhibition increased with an increase in the extract dose and in temperature. The inhibition efficiency of the extract reached 93.7% at 300 ppm, 25°C. Thermodynamic parameters of activation and adsorption were computed and discussed. Polarization curves showed that the extract studied behaves as mixed kind inhibitor. The Langmuir adsorption isotherm was obtained for the adsorption of the extract on the Al surface. Using the mass loss technique, it was revealed that adding KI enhances inhibitory efficiency from 77.3 to 91.6% owing to the synergistic effect. The surface analysis of aluminum was performed using different techniques. All other data approached were compatible and in line with each other.</p>","PeriodicalId":49315,"journal":{"name":"Surface Engineering and Applied Electrochemistry","volume":"58 3","pages":"248 - 259"},"PeriodicalIF":1.1000,"publicationDate":"2022-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Engineering and Applied Electrochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.3103/S1068375522030115","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ELECTROCHEMISTRY","Score":null,"Total":0}
引用次数: 0
Abstract
Potentiodynamic polarization, electrochemical impedance spectroscopy, mass loss, and hydrogen evolutions techniques were used to investigate the effect of the plant extract Cystoseira myrica as corrosion inhibitor for aluminum in 1 M HCl. All those measurements showed that the effectiveness of inhibition increased with an increase in the extract dose and in temperature. The inhibition efficiency of the extract reached 93.7% at 300 ppm, 25°C. Thermodynamic parameters of activation and adsorption were computed and discussed. Polarization curves showed that the extract studied behaves as mixed kind inhibitor. The Langmuir adsorption isotherm was obtained for the adsorption of the extract on the Al surface. Using the mass loss technique, it was revealed that adding KI enhances inhibitory efficiency from 77.3 to 91.6% owing to the synergistic effect. The surface analysis of aluminum was performed using different techniques. All other data approached were compatible and in line with each other.
采用动电位极化、电化学阻抗谱、质量损失和析氢等技术研究了杨梅提取物在1 M HCl溶液中对铝的缓蚀作用。所有这些测量表明，抑制效果随着提取物剂量和温度的增加而增加。在300 ppm、25℃条件下，提取液的抑菌率达到93.7%。计算并讨论了活化和吸附的热力学参数。极化曲线表明，所研究的萃取物表现为混合型缓蚀剂。得到了萃取物在铝表面吸附的Langmuir等温线。通过失重法研究发现，KI的加入使其抑菌率由77.3提高到91.6%，这是由于KI的协同作用。采用不同的技术对铝进行了表面分析。所接触的所有其他数据都是相互兼容和一致的。
期刊介绍：
Surface Engineering and Applied Electrochemistry is a journal that publishes original and review articles on theory and applications of electroerosion and electrochemical methods for the treatment of materials; physical and chemical methods for the preparation of macro-, micro-, and nanomaterials and their properties; electrical processes in engineering, chemistry, and methods for the processing of biological products and food; and application electromagnetic fields in biological systems.
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