Abstract
Cyclic voltammetry (CV), double-potential step chronocoulometry (DPSCC), and electrochemical impedance spectroscopy (EIS) techniques have been performed to study the effects of abrasive particles on the electrochemical reaction of adrenaline at glassy carbon electrode (GCE) and platinum electrode in 0.5 mol/L H2SO4 solution. For the electrochemical reaction of adrenaline, it was shown that abrasive particles have a more marked electrocatalytic effect at GCE compared to that at platinum electrode. The electrocatalytic effect of SiC coated GCE is more obvious comparing to that of Al2O3 coated GCE. With the coarse degree of the abrasive paper increasing, the peak current (i p) increases significantly and the peak-to-peak potential separation (ΔE p) changes a little at the pretreated GCE. The electron transfer process of adrenaline at the different pretreated GCE is controlled by the diffusion in this system.
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Published in Russian in Elektrokhimiya, 2014, Vol. 50, No. 1, pp. 89–96.
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Yuan, ZD. The effects of abrasive particles on the electrochemical behavior of adrenaline at different electrodes. Russ J Electrochem 50, 80–86 (2014). https://doi.org/10.1134/S1023193513060074
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DOI: https://doi.org/10.1134/S1023193513060074