CAJ | 학술논문

基于衰减全反射模式下的表面增强红外，已广泛用于界面吸附的研究。作者报道一种基于外反射模式下的表面增强红外光谱电化学技术。在纳米金溶液中，研究了多巴胺和钴邻菲罗啉配合物的光谱电化学行为。研究表明，吸附在均匀分散于水溶液中纳米金颗粒的多巴胺和钴邻菲罗啉配合物分子，能够表现出显著的红外增强现象。这种现象是由于带正电荷的多巴胺和钴邻菲罗啉配合物由于静电作用吸附至带负电性的纳米金颗粒表面，从而表现出红外吸收增强现象。
기우쇠감전반사모식하적표면증강홍외，이엄범용우계면흡부적연구。작자보도일충기우외반사모식하적표면증강홍외광보전화학기술。재납미금용액중，연구료다파알화고린비라람배합물적광보전화학행위。연구표명，흡부재균균분산우수용액중납미금과립적다파알화고린비라람배합물분자，능구표현출현저적홍외증강현상。저충현상시유우대정전하적다파알화고린비라람배합물유우정전작용흡부지대부전성적납미금과립표면，종이표현출홍외흡수증강현상。
Surface-enhanced infrared absorption (SEIRA)has been extensively applied to in situ monitoring of adsorption and electrochemical process at the interface by using attenuated total reflection (ATR)configuration.In this paper,the authors reported a surface-enhanced infrared spectroscopy electrochemical techniques based on external reflection.They used gold nanoparticles (GNPs)as the reaction environment and the positive charging dopamine (DA)and [Co(phen)3 ]3+ as the reactant.Experimental results showed that SEIRA could be observed in GNP dispersed solution by using infrared reflection absorption spectroscopy (IR-RAS).This phenomenon was owing to electrostatic interactions,the positive charging dopamine and [Co(phen)3 ]3+ could be absorbed on negatively charged GNP,so SEIRA could be clearly observed due to the adsorbed molecular.