摘要
为了快速获得高效减缓金属腐蚀用缓蚀剂配方,基于分子前线轨道分布差异,明确了分子前线轨道能量与金属基体费米能级位置的匹配关系对复配缓蚀剂吸附性能的影响,设计了不同分子复配协同缓蚀体系。结合电化学实验测试结果,提出了一种基于前线轨道理论的协同缓蚀成分设计方法,即将一种容易失去电子与一种容易获得电子的缓蚀剂分子复配后,两种分子将表现出较好的协同缓蚀性能。该设计方法可实现配方组分的快速筛选、缩短获得高效缓蚀复配体系的进程,可满足项目现场应用场景下的缓蚀剂服役性能要求,减缓苛刻服役环境中金属腐蚀的进展。该设计对缩短具有优异协同缓蚀效应的缓蚀剂配方开发时间、提高复配缓蚀剂缓蚀效率具有一定的指导意义。
In order to study and quickly obtain efficient corrosion inhibitor formulations for retarding the corrosion of metal,based on the distribution difference of molecular frontier orbital,the influence of matching relationship between energy of molecular frontier orbital and Fermi level position of metal matrix on the adsorption performance of complex corrosion inhibitors is clarified.In combination with the electrochemical results,a design method of construction of the molecular complex with synergistic effect is first proposed.A combination of a corrosion inhibitor molecule that is easy to lose electrons with a corrosion inhibitor molecule that is easy to gain electrons,the two molecules can show synergistic corrosion inhibition performance.The design and construction method can realize the rapid screening of formula components,shorten the process of obtaining efficient corrosion inhibition compound system,meet the service performance requirements of corrosion inhibitors under the project field application scenario,and slow down the progress of metal corrosion in harsh service environment.This design show some guiding significance for reducing the development time of corrosion inhibitors with excellent synergistic corrosion inhibition effect and improving the corrosion inhibition efficiency of compound corrosion inhibitors.
作者
韩鹏
刘瑞平
余俊锴
HAN Peng;LIU Ruiping;YU Junkai(School of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)
出处
《实验室研究与探索》
CAS
北大核心
2023年第5期37-40,45,共5页
Research and Exploration In Laboratory
基金
北京市大学生创新训练项目(202204043)
中国矿业大学(北京)教学改革项目(J220408)。
关键词
前线轨道
协同效应
缓蚀剂
配方设计
技术应用
frontier orbital
synergistic effect
corrosion inhibitor
formula design
technical application
