Functionalized carbon dots for corrosion protection:Recent advances and future perspectives  

作　　者：Li Zhao Jinke Wang Kai Chen Jingzhi Yang Xin Guo Hongchang Qian Lingwei Ma Dawei Zhang 

机构地区：[1]Beijing Advanced Innovation Center for Materials Genome Engineering,Institute for Advanced Materials and Technology,University of Science and Technology Beijing,Beijing 100083,China [2]National Materials Corrosion and Protection Data Center,University of Science and Technology Beijing,Beijing 100083,China [3]Key Laboratory of Biomechanics and Mechanobiology(Beihang University),Ministry of Education,Beijing Advanced Innovation Center for Biomedical Engineering,School of Biological Science and Medical Engineering,Beihang University,Beijing 100083,China

出　　处：《International Journal of Minerals,Metallurgy and Materials》2023年第11期2112-2133,共22页矿物冶金与材料学报（英文版）

基　　金：financially supported by the Young Elite Scientists Sponsorship Program by the China Association for Science and Technology(YESS,No.2020QNRC001);the National Science and Technology Resources Investigation Program of China(No.2021FY100603);the Fundamental Research Funds for the Central Universities(No.FRF-BD-20-28A2)。

摘　　要：Metal corrosion causes significant economic losses,safety issues,and environmental pollution.Hence,its prevention is of immense research interest.Carbon dots(CDs)are a new class of zero-dimensional carbon nanomaterials,which have been considered for corrosion protection applications in recent years due to their corrosion inhibition effect,fluorescence,low toxicity,facile chemical modification,and cost-effectiveness.This study provides a comprehensive overview of the synthesis,physical and chemical properties,and anticorrosion mechanisms of functionalized CDs.First,the corrosion inhibition performance of different types of CDs is introduced,followed by discussion on their application in the development of smart protective coatings with self-healing and/or self-reporting properties.The effective barrier formed by CDs in the coatings can inhibit the spread of local damage and achieve self-healing behavior.In addition,diverse functional groups on CDs can interact with Fe^(3+)and H^(+)ions generated during the corrosion process;this interaction changes their fluorescence,thereby demonstrating self-reporting behavior.Moreover,challenges and prospects for the development of CD-based corrosion protection systems are also presented.

关 键 词：carbon dots corrosion protection corrosion inhibitors SELF-HEALING SELF-REPORTING 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TQ127.11[金属学及工艺—金属学]