E. E. Ajike, A. N. Lebe, E. C. Nwaokorongwu, K. D. Ogwo, C. Y. Ahamefula
{"title":"加西考拉（GK）在铝合金（AA4007）碱性介质中的抑制特性","authors":"E. E. Ajike, A. N. Lebe, E. C. Nwaokorongwu, K. D. Ogwo, C. Y. Ahamefula","doi":"10.4314/njt.v43i2.10","DOIUrl":null,"url":null,"abstract":"The application of corrosion inhibitors is a more effective strategy tomitigate the impacts of aluminum corrosion. Phytochemical analysis, gravimetric technique, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were used to investigate the inhibitory potentials of Garcinia kola aqueous leave extract for the corrosion of aluminum alloy (AA4007) in 1 M NAOH. The highest inhibition efficiency obtained was 98.5%. The result from the analyses collaborated that the leaf extract is a good inhibitor. The Langmuir, Freundlich and Temkin isotherm is in agreement that the inhibitor is physisorption. Garcinia kola showed high corrosion inhibition efficiency on aluminum alloy.","PeriodicalId":33360,"journal":{"name":"Nigerian Journal of Technology","volume":" November","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Inhibitive properties of Garcinia kola (GK) in alkaline medium of aluminum alloy (AA4007)\",\"authors\":\"E. E. Ajike, A. N. Lebe, E. C. Nwaokorongwu, K. D. Ogwo, C. Y. Ahamefula\",\"doi\":\"10.4314/njt.v43i2.10\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The application of corrosion inhibitors is a more effective strategy tomitigate the impacts of aluminum corrosion. Phytochemical analysis, gravimetric technique, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were used to investigate the inhibitory potentials of Garcinia kola aqueous leave extract for the corrosion of aluminum alloy (AA4007) in 1 M NAOH. The highest inhibition efficiency obtained was 98.5%. The result from the analyses collaborated that the leaf extract is a good inhibitor. The Langmuir, Freundlich and Temkin isotherm is in agreement that the inhibitor is physisorption. Garcinia kola showed high corrosion inhibition efficiency on aluminum alloy.\",\"PeriodicalId\":33360,\"journal\":{\"name\":\"Nigerian Journal of Technology\",\"volume\":\" November\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-07-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Nigerian Journal of Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4314/njt.v43i2.10\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nigerian Journal of Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4314/njt.v43i2.10","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
应用缓蚀剂是缓解铝腐蚀影响的一种更有效的策略。本研究采用植物化学分析、重量测定法、电位极化法和电化学阻抗光谱法（EIS）研究了加西考拉水提取物在 1 M NAOH 中对铝合金（AA4007）腐蚀的抑制潜力。获得的最高抑制效率为 98.5%。分析结果表明树叶提取物是一种良好的抑制剂。Langmuir、Freundlich 和 Temkin 等温线与抑制剂的物理吸附作用一致。藤黄科拉对铝合金的缓蚀效率很高。
Inhibitive properties of Garcinia kola (GK) in alkaline medium of aluminum alloy (AA4007)
The application of corrosion inhibitors is a more effective strategy tomitigate the impacts of aluminum corrosion. Phytochemical analysis, gravimetric technique, potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) were used to investigate the inhibitory potentials of Garcinia kola aqueous leave extract for the corrosion of aluminum alloy (AA4007) in 1 M NAOH. The highest inhibition efficiency obtained was 98.5%. The result from the analyses collaborated that the leaf extract is a good inhibitor. The Langmuir, Freundlich and Temkin isotherm is in agreement that the inhibitor is physisorption. Garcinia kola showed high corrosion inhibition efficiency on aluminum alloy.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
