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Citation: ZHONG Qi-ling, ZHANG Xiao-hong, ZHOU Hai-Hui, WEN Zu-biao, YANG Xiong-yuan, HUANG Peng, REN Bin, TIAN Zhong-qun. In-situ SERS of Piperonal and Isosafrole Electrooxidation on Pt Electrode[J]. Acta Physico-Chimica Sinica, ;2005, 21(10): 1182-1185. doi: 10.3866/PKU.WHXB20051025 shu

In-situ SERS of Piperonal and Isosafrole Electrooxidation on Pt Electrode

1.
College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330027； 1School of Chemistry and Material Science, Wenzhou Normal College, Wenzhou 325027; 2State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005

Received Date: 2 February 2005
Available Online: 15 October 2005

The electrooxidation behavior of piperonal (PI) and isosafrole (ISF) on roughened platinum in non-aqueous system was investigated by cyclic voltammogram (CV) and in-situ surface enhanced raman scattering (SERS) spectroscopy. On the one hand, PI would be oxidated to piperic acid if the potential was equal to 1.50 V or higher than 1.50 V. On the other hand, the in- situ SERS results demonatrated that the exciting laser of 632.8 nm promoted the electrooxidation of PI at the oxidation potential (≥1.50 V). As a result, the potential, which was used to directly oxidate ISF to PI should be controlled between 1.20 V and 1.50 V.
- Cyclic voltammogram;Piperonal;Isosafrole;Electrooxidation;SERS
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