表面技术2025，Vol.54Issue(17)：1-17,17.DOI:10.16490/j.cnki.issn.1001-3660.2025.17.001
植物缓蚀剂的研究进展及其在金属材料防腐中的应用
Research Progress of Plant Corrosion Inhibitors and Their Application in Metal Corrosion Protection
摘要
Abstract
Metal corrosion poses severe economic and environmental challenges,with global annual losses exceeding 2.5 trillion USD.Traditional inhibitors like chromates face strict regulations due to toxicity,driving the research toward eco-friendly alternatives.Corrosion inhibitors are an important means of combating corrosion.Among them,plant corrosion inhibitors(PCIs)have become a research hot spot due to their advantages of being green,having a wide range of raw material sources,and being easy to extract. The research progress of PCIs is systematically summarized and their plant sources,including leaves,fruits,barks,and root are classified,of which each has different corrosion inhibition characteristics.The diversity of the active components is introduced.Although the chemical structure is different,the commonality is the common presence of heteroatomic groups or conjugated systems in the molecules,making it interact with the metal surface.For instance,phenolic compounds can form stable corrosion inhibition products through p-Π conjugation and coordination bonds,while alkaloids can achieve chemical adsorption through lone pair electrons of nitrogen atoms. The application effects of PCIs in various acid media and for different metal materials are also presented.It is found that the inhibition efficiency can be significantly improved when plant corrosion inhibitors are used in combination with others or integrated with other anti-corrosion technologies.By analyzing adsorption isotherms like Langmuir,Freundlich,and Temkin,the adsorption mechanisms and the interaction between inhibitor molecules and metal surfaces can be understood.Moreover,PCIs usually act as mixed inhibitors,and electrochemical methods combined with theoretical calculations can accurately determine their action types. The efficacy of PCIs are intrinsically tied to extraction and characterization methods.Traditional techniques(maceration,Soxhlet extraction)are cost-effective but limited by low efficiency and solvent waste.Modern approaches,including ultrasound-assisted extraction(UAE)and microwave-assisted extraction(MAE),significantly enhance yield and reduce processing time.The active components of plant corrosion inhibitors are typically identified with advanced analytical techniques such as gas chromatography-mass spectrometry(GC-MS),high-performance liquid chromatography(HPLC),and Fourier-transform infrared spectroscopy(FTIR).These methods are conducive to the determination of the chemical composition and structure of the active compounds,which is crucial for understanding their inhibition mechanisms and improving their performance.The extraction process also considers solvent properties,extraction temperature,and the pH of the extract,which can affect corrosion inhibition efficiency. Finally,future research directions are proposed,including optimizing extraction processes by combining different methods to enhance efficiency and reduce costs,expanding applications to industries like electronics manufacturing and aerospace where high precision and safety are required,constructing composite protection systems that integrate PCIs with other corrosion prevention methods for synergistic effects,and leveraging computer technology to establish databases that compile information on plant species,extraction methods,active components,and corrosion inhibition performance,aiming to promote the development and application of plant corrosion inhibitors. In conclusion,plant corrosion inhibitors are a promising green solution for metal corrosion protection.They offer diverse sources,effective active components,and broad industrial application potential.By reducing environmental impact,they contribute to sustainable development.This makes them a vital focus in both current research and future industrial applications.关键词
金属材料/植物缓蚀剂/腐蚀防护/绿色化学/腐蚀抑制机制Key words
metal materials/plant corrosion inhibitors/corrosion protection/green chemistry/corrosion inhibition mechanism分类
矿业与冶金引用本文复制引用
徐姿仪,陈倚,韩嘉茹,魏雅晓,乔冬升,邱丽娜,弓爱君..植物缓蚀剂的研究进展及其在金属材料防腐中的应用[J].表面技术,2025,54(17):1-17,17.基金项目
北京科技大学第五批课程思政示范项目(KC2023SZ35) （KC2023SZ35）
北京科技大学研究生课程思政示范项目(2024SZA035) （2024SZA035）
国家级大学生创新创业项目(202410008049)Fifth Batch of Course ldeological and Political Demonstration Course Project of University of Science and Technology Beijing(KC2023SZ35) （202410008049）
Postgraduate Course Ideological and Political Education Demonstration Project of University of Science and Technology Beijing(2024SZA035) （2024SZA035）
College Student Innovation and Entrepreneurship Project(202410008049) （202410008049）
