Acta Phys. -Chim. Sin. ›› 2004, Vol. 20 ›› Issue (01): 94-97.doi: 10.3866/PKU.WHXB20040120

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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

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