异黄樟油素在铂电极上电氧化及原位拉曼光谱

The Investigation of Electro-oxidation Behavior and In-situ Surface Enhanced Raman Spectrum of Isosafrole on Rough Pt

利用循环伏安法(CV)研究了异黄樟油素在铂电极上的电氧化行为,当在-0.55～1.95V(vsAg/AgCl电极)电位范围内进行扫描时,其CV图有两个氧化峰和一个还原峰出现;比较了异黄樟油素和黄樟油素这对异构体在铂电极上的电氧化行为;探讨了异黄樟油素在铂电极上的电氧化反应机理.同时,通过开展原位表面增强拉曼光谱实验,确定了异黄樟油素的电氧化发生在烯丙基的碳碳双键上.

The oxidative behavior of isosafrole (ISF) in non aqueous system on Pt was investigated by cyclic voltammery.When scanning from - 0.55 to 1.95 V (vs Ag/AgCl electrode) at a certain scan rate,two oxidation peaks and one reduction peak appeared.By scanning at different scan rate,the electro oxidative behavior of isosafrole on Pt was confirmed to be controlled by concentration diffusion,as well as chemical reaction rate.By comparing the two isomers,ISF and SF safrole,the reactive mechanism was dcecussed.Moreover,the active oxidation group of ISF was identified to be the C=C from allyl by developing the in situ surface enhanced Raman specrum.