Electrochemical detection of hydrogen peroxide at a waxed graphite electrode modified with platinum-decorated carbon nanotubes  

作　　者：时巧翠 曾文芳 朱玉奴 

机构地区：[1]Experience Center,Zhejiang Police College [2]Department of Chemistry,Zhejiang University

出　　处：《Journal of Shanghai University(English Edition)》2009年第1期63-66,共4页上海大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.29975024, 20275034);the Key Project of Science and Technology of Zhejiang Province (Grant Nos.2003C21024, Y4080223)

摘　　要：Platinum-decorated carbon nanotubes （CNT-Pt） were produced by the chemical reduction method. A novel modified electrode was fabricated by intercalated CNT-Pt in the surface of waxed graphite, which provided excellent electrocatalytic activity and selectivity for both oxidation and reduction of hydrogen peroxide. The current response of the modified electrode for hydrogen peroxide was very rapid and the detection limits in amperometry are 2.5×10^-6 mol/L at reduction potential and 4.8×10^-6 mol/L at oxidation potential. It was desmonstrated that the electrode with high electro-activity was a suitable basic electrode for preparing enzyme electrode.Platinum-decorated carbon nanotubes （CNT-Pt） were produced by the chemical reduction method. A novel modified electrode was fabricated by intercalated CNT-Pt in the surface of waxed graphite, which provided excellent electrocatalytic activity and selectivity for both oxidation and reduction of hydrogen peroxide. The current response of the modified electrode for hydrogen peroxide was very rapid and the detection limits in amperometry are 2.5×10^-6 mol/L at reduction potential and 4.8×10^-6 mol/L at oxidation potential. It was desmonstrated that the electrode with high electro-activity was a suitable basic electrode for preparing enzyme electrode.

关 键 词：platinum-decorated carbon nanotubes （CNT-Pt） hydrogen peroxide ELECTROANALYSIS 

分 类 号：O611.3[理学—无机化学]