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The hybrid modified electrodes were obtained by electrochemical deposition of copper-cobalt hexacyanoferrate(CuCoHCF) /multi-walled carbon nanotubes(MWCNTs) on the surface of glassy carbon electrode.The effects of the amount of MWCNTs and composition of electrolyte on the properties of modified electrode had been researched.The copper cobalt hexacyanoferrate-MWCNTs modified electrodes show excellent electrochemical properties compared with that modified only copper-cobalt hexacyanoferrate.The CuCoHCF-MWCNTs/GCE exhibits obvious electrocatalytic activity towards oxidation of hydrogen peroxide.The oxidation peak current increased linearly with the concentration of hydrogen peroxide in the range of 3.16 × 10-5 ~ 2.92 × 10-3 mol· L-1.The linear equation is given up ip(μA) = 0.5529 + 1.1299C(× 10-4 mol·L-1),with the correlation coefficient of 0.9966 and the detection limit of 1.75 × 10-5 mol·L-1.


copper-cobalt hexacyanoferrate, multi-walled carbon nanotubes, electrodeposition, hydrogen peroxide

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