铁电极表面拉曼光谱的初步研究

Preliminary Surface Raman Spectroscopic Studies on Iron Electrodes

本文成功地把表面 Raman光谱研究拓宽到重要的过渡金属之一的铁电极上。实验尝试了多种粗糙处理方法 ,如 :化学刻蚀、现场和非现场电化学氧化还原等法对铁电极表面进行处理 ,并首次获得吸附在粗糙铁电极上的吡啶分子的高质量表面拉曼光谱。经过比较发现表面拉曼光谱信噪比的提高与电极表面粗糙度有很大的关系 。

Surface Raman spectroscopic studies have been successfully extended to Fe electrode by using a highly sensitive confocal microscope system. Different surface roughening procedures were used to obtain high-quality surface enhanced Raman spectra of pyridine adsorbed on iron electrode. Results show that proper surface roughness can not only increase the surface area but also induce a weak SERS effect. The success of obtaining surface Raman spectra from iron electrode enables us to understand the mechanism of SERS from a new point of view and to study the practical significance of corrosion and inhibition for iron.