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MOF-5@Phen@Chitosan/EP Coating: A Smart Dual-Functionality Self-Reporting and Corrosion-Inhibiting Coating for Identifying and Suppressing Early Steel Corrosion

文献类型：期刊论文

作者Zhao, Botao1,2; Zeng, Hui3; Yang, Jin3; Zhang, Hailong3; Zhu, Qingjun1,2; Zhang, Ruiyong1,2
刊名MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
出版日期2026-04-16
页码18
关键词corrosion inhibition metal-organic framework phenanthroline self-reporting steel protection
ISSN号0947-5117
DOI10.1002/maco.70155
通讯作者Zeng, Hui(zeng_hui1@ctg.com.cn) ; Zhu, Qingjun(zhuqingjun@qdio.ac.cn)
英文摘要Steel corrosion beneath protective coatings remains a major threat to infrastructure safety, creating a need for coating that provide early warning and active inhibition. In this study, a multifunctional self-reporting and anti-corrosion coating system (MPC) is fabricated using MOF-5 loaded with 1,10-phenanthroline (Phen) and encapsulated within chitosan shells, enabling pH-responsive release. Physicochemical, spectroscopic, and electrochemical analyses confirm successful Phen loading (25.06-29.70 wt.%), controlled release behavior, and dual functions of visible self-reporting and corrosion inhibition. CLSM and Raman measurements further verify the formation of Fe(Phen)3 2+ at corrosion sites and the suppression of Fe ion. EIS shows that a 5 wt.% MPC coating achieves a 342% impedance increase compared with neat epoxy after 42 days in 3.5 wt.% NaCl solution. Salt-spray and immersion tests further demonstrate real-time visual corrosion indication and long-term protection. This work presents an effective strategy for integrating colorimetric reporting and active inhibition in MOF-based intelligent coatings for early-stage corrosion detection and suppression.
WOS关键词METAL-ORGANIC FRAMEWORK ; HYBRID ; MOF-5 ; COMBINATION ; STABILITY
资助项目China Yangtze Power Co. Ltd.[2223020003]
WOS研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:001742204300001
出版者WILEY-V C H VERLAG GMBH
源URL[http://ir.qdio.ac.cn/handle/337002/204919]  
专题中国科学院海洋研究所
通讯作者Zeng, Hui; Zhu, Qingjun
作者单位1.Chinese Acad Sci, Inst Oceanol, Qingdao, Shandong, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.China Yangtze Power Co Ltd, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Botao,Zeng, Hui,Yang, Jin,et al. MOF-5@Phen@Chitosan/EP Coating: A Smart Dual-Functionality Self-Reporting and Corrosion-Inhibiting Coating for Identifying and Suppressing Early Steel Corrosion[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2026:18.
APA Zhao, Botao,Zeng, Hui,Yang, Jin,Zhang, Hailong,Zhu, Qingjun,&Zhang, Ruiyong.(2026).MOF-5@Phen@Chitosan/EP Coating: A Smart Dual-Functionality Self-Reporting and Corrosion-Inhibiting Coating for Identifying and Suppressing Early Steel Corrosion.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,18.
MLA Zhao, Botao,et al."MOF-5@Phen@Chitosan/EP Coating: A Smart Dual-Functionality Self-Reporting and Corrosion-Inhibiting Coating for Identifying and Suppressing Early Steel Corrosion".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION (2026):18.

入库方式： OAI收割

来源：海洋研究所

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