物理化学学报 >> 2004, Vol. 20 >> Issue (01): 94-97.doi: 10.3866/PKU.WHXB20040120

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异黄樟油素在铂电极上电氧化及原位拉曼光谱

钟起玲;张小红;粟晓琼;章磊;刘跃龙;任斌;田中群   

  1. 江西师范大学化学学院,南昌　330027;温州师范学院化学与材料科学学院,温州　325003; 厦门大学化学系,固体表面物理化学国家重点实验室,厦门　361005
  • 收稿日期:2003-06-30 修回日期:2003-09-22 发布日期:2004-01-15
  • 通讯作者: 钟起玲 E-mail:zhqiling@163.com

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

Zhong Qi-Ling;Zhang Xiao-Hong;Su Xiao-Qiong;Zhang Lei;Liu Yue-Long;Ren Bin;Tian Zhong-Qun   

  1. College of Chemistry, Jiangxi Normal University, Nanchang　330027; School of Chemistry and Material Science, Wenzhou Normal College, Wenzhou　325027; Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surface, Xiamen　361005
  • Received:2003-06-30 Revised:2003-09-22 Published:2004-01-15
  • Contact: Zhong Qi-Ling E-mail:zhqiling@163.com

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摘要： 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－0.55～1.95 V（vs Ag/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.

关键词: 循环伏安法(CV), 异黄樟油素（ISF）, 反应机理, 电氧化, 拉曼光谱

Abstract: 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.

Key words: Cyclic voltrammetry(CV), Isosafrole (ISF), Reaction mechanism, Electro-oxidation, Raman spectrum