Electrocatalytic Oxidation Study of Theophylline on a Copper Nanoparticles-Modified, Carbon Paste Electrode Based on Cyclic Voltammetry

Electrocatalytic Oxidation Study of Theophylline on a Copper Nanoparticles-Modified, Carbon Paste Electrode Based on Cyclic Voltammetry

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In this study, the Cu nanoparticles were prepared by reducing CuSO4.These particles were used in making copper nanoparticles modified carbon paste electrode (nano-CPE).The electrochemical characteristics of this electrode (nano-CPE) were investigated.The results Electronics of the electrocatalytic oxidation of theophylline (TP) on nano-CPE, using the cyclic voltammetry technique showed that nano-CPE, has more reactivity and more effective surface area, as compared to the unmodified carbon paste electrode (un-CPE).The investigation of voltammograms obtained from oxidation of TP at different scan rates on the nano-CPE confirmed a cyclic mediated redox mechanism followed by reducing Cu(III) which is a chemical reaction (EC mechanism).

These species formed in more positive potentials and act as a redox intermediate for TP oxidation.There was a linear relationship between the oxidation peak current and the square root of the scan rate, showing that Lounge Bottoms the oxidation reaction of TP at nano-CPE might be due to the diffusion-controlled process.