A Novel Electrochemical Method for the Analysis of Hydrogen Peroxide with the Use of a Glassy Carbon Electrode Modified by a Prussian Blue/Copper‐Gold Bimetallic Nanoparticles Hybrid Film |
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| Authors: | Yongnian Ni Haiyan Song Serge Kokot |
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| Institution: | 1. State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P.?R. China;2. Department of Chemistry, Nanchang University, Nanchang 330031, P.?R. China tel.: 86?791?83969500;3. fax: 86?791?83969500;4. School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane 4001, Australia |
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| Abstract: | A novel Prussian blue/copper‐gold bimetallic nanoparticles hybrid film modified electrode was prepared by electrochemical deposition on a glassy carbon electrode (PB/Cu‐AuNPs/GCE). Morphology and electrochemistry of this electrode were studied by UV‐vis spectroscopy, scanning electron microscopy, X‐ray diffraction, cyclic voltammetry and electrochemical impedance spectroscopy. The sensor showed significantly better electrocatalytic activity for the reduction of hydrogen peroxide in comparison with the single PB/GCE and PB/AuNPs/GCE. This was attributed to the synergistic effect of PB and Cu‐Au bimetallic nanoparticles. Also, the sensor demonstrated an overall high level of performance for the analysis of H2O2 in the concentration range from 0.002 to 0.84 mM. |
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| Keywords: | Copper‐gold bimetallic nanoparticles Prussian blue Hybrid film Hydrogen peroxide Electrocatalysis |
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