碳点在金属腐蚀防护领域的研究进展  

Research Progress of Carbon Dots in the Field of Metal Corrosion and Protection

作　　者：王金科 吴尚浩 陈质彬 王悦 马菱薇 张达威 WANG Jinke;WU Shanghao;CHEN Zhibin;WANG Yue;MA Lingwei;ZHANG Dawei(Institute of Advanced Materials&Technology,University of Science and Technology Beijing,Beijing 100083,China)

机构地区：[1]北京科技大学新材料技术研究院,北京100083

出　　处：《表面技术》2024年第3期75-87,共13页Surface Technology

基　　金：中国科协青年人才托举工程(YESS,2020QNRC001);国家科技基础资源调查项目(2021FY100603)。

摘　　要：综述了碳点的合成路径、改性方法及其在腐蚀防护领域的应用,重点阐述了碳点作为缓蚀剂及其在自修复、自预警等智能防腐涂层方向应用的国内外最新研究进展。首先,分析和探讨了杂原子掺杂型、有机分子修饰型以及生物质衍生型碳点缓蚀剂的缓蚀机理、优势及不足。其次,介绍了基于碳点的本征和外援自修复涂层、腐蚀预警涂层的设计思路及自修复、自预警机制。最后,提出了碳点在缓蚀剂和智能防腐涂层中应用所存在的问题,并对其未来发展前景进行了讨论。未来应秉持绿色、高效理念,进一步优化碳点的制备工艺,深入研究其在缓蚀、涂层自修复及腐蚀预警中的关键作用,以期早日实现工业应用。Corrosion control and protection plays an essential role in ensuring the safety service of metal materials in various complicated environments.As the concept of sustainable development gradually gained popularity,it has become a consensus in the field of metal corrosion and protection to improve or develop green and low-toxicity anti-corrosion materials or corrosion control methods.Carbon dots(CDs)are novel zero-dimensional carbon nanomaterials with various fascinating properties,such as wide raw material sources,various preparation methods,environmental friendliness,facile surface modification and strong fluorescence properties,which have gained widespread attentions.For instance,CDs have been regarded as a kind of promising corrosion inhibitors,possessing abundant groups that can be adsorbed onto the surface of metal substrates to alleviate metal destruction in acidic or neutral corrosive medium.In addition,CDs can be used to construct intelligent corrosion protection coatings with self-healing and corrosion-reporting functions.The work aims to summarize the synthesis pathways and modification methods of CDs and their applications in the field of metal corrosion and protection.The the latest research progress of CDs as corrosion inhibitors and their application in smart corrosion protection coatings,including self-healing and self-reporting coatings,in China and abroad was mainly expounded.As novel corrosion inhibitors,the corrosion inhibition efficiency of CDs was effectively improved when doped with heteroatoms or modified with organic molecules.Therefore,the corrosion inhibition mechanism of heteroatoms doped CDs,organic molecules modified CDs,biomass derived CDs and their advantages and weaknesses were analyzed and discussed in detail.As for the intelligent corrosion protection coating,its design and development generally focused on two aspects:the coating resin matrix and external fillers.The easy modification of CDs surface was conducive to its combination with resin network structures or external fillers

关 键 词：碳点 缓蚀剂 涂层 自修复 自预警 

分 类 号：TG174.4[金属学及工艺—金属表面处理]