表面增强拉曼光谱法研究铁吡啶类缓蚀剂

A SERS STUDY ON INHIBITORS OF IRON-PYRIDINE DERIVATIVES

利用表面增强拉曼散射（ＳＥＲＳ）光谱技术和传统的电化学手段研究了４－甲基吡啶、２，４，６－三甲基吡啶在盐酸体系中对铁的缓蚀作用。结果表明，在该体系中，４－甲基吡啶对铁的缓蚀作用大于２，４，６－三甲基吡啶，并对其可能的吸附取向进行了讨论。

This paper presents the experimental study of SERS spectra of some corrosion inhibitors on iron, such as 4-methylpyridine and 2, 4, 6-trimethylpyridine using activated silver electrodes covered with appropriate amounts of electrodeposited iron. Adsorption modes of these compounds were discussed on the basis of SERS spectra and electrochemistry. It also shows that 4-methylpyridine is a better inhibitor than 2, 4, 6-trimethylpyridine in hydrochloric acid solutions.